15 puzzle - Page 237 - Developer IT

I am getting this error on each machine after installing ruby and rails, I created one web site and

- by Santodsh

D:\PROJECTS\RubyOnRail\webapp\Welcome>ruby script\server => Booting WEBrick => Rails 2.3.4 application starting on http://0.0.0.0:3000 => Call with -d to detach => Ctrl-C to shutdown server [2010-01-31 21:19:34] INFO WEBrick 1.3.1 [2010-01-31 21:19:34] INFO ruby 1.8.6 (2007-09-24) [i386-mswin32] [2010-01-31 21:19:34] INFO WEBrick::HTTPServer#start: pid=6576 port=3000 /!\ FAILSAFE /!\ Sun Jan 31 21:19:38 +0530 2010 Status: 500 Internal Server Error uninitialized constant Encoding c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/depend encies.rb:443:in `load_missing_constant' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/depend encies.rb:80:in `const_missing' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/depend encies.rb:92:in `const_missing' c:/ruby/lib/ruby/gems/1.8/gems/sqlite3-0.0.6/lib/sqlite3/encoding.rb:9:in `f ind' c:/ruby/lib/ruby/gems/1.8/gems/sqlite3-0.0.6/lib/sqlite3/database.rb:69:in ` initialize' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/sqlite3_adapter.rb:13:in `new' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/sqlite3_adapter.rb:13:in `sqlite3_connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:223:in `send' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:223:in `new_connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:245:in `checkout_new_connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:188:in `checkout' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:184:in `loop' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:184:in `checkout' c:/ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:183:in `checkout' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:98:in `connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:326:in `retrieve_connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_specification.rb:123:in `retrieve_connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_specification.rb:115:in `connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/query_ca che.rb:9:in `cache' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/query_ca che.rb:28:in `call' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:361:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/head.rb:9:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in ` call' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/params _parser.rb:15:in `call' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/sessio n/cookie_store.rb:93:in `call' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/failsa fe.rb:26:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `synchroniz e' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/dispat cher.rb:114:in `call' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/reload er.rb:34:in `run' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/dispat cher.rb:108:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/rack/static.rb:31:in `c all' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `each' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/rack/log_tailer.rb:17:i n `call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/content_length.rb:13:in ` call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/webrick.rb:50:in `service' c:/ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' c:/ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' c:/ruby/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' c:/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:92:in `each' c:/ruby/lib/ruby/1.8/webrick/server.rb:92:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:23:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:82:in `start' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/webrick.rb:14:in `run' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/commands/server.rb:111 c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_origina l_require' c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' script/server:3 /!\ FAILSAFE /!\ Sun Jan 31 21:19:39 +0530 2010 Status: 500 Internal Server Error uninitialized constant Encoding c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/depend encies.rb:443:in `load_missing_constant' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/depend encies.rb:80:in `const_missing' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/depend encies.rb:92:in `const_missing' c:/ruby/lib/ruby/gems/1.8/gems/sqlite3-0.0.6/lib/sqlite3/encoding.rb:9:in `f ind' c:/ruby/lib/ruby/gems/1.8/gems/sqlite3-0.0.6/lib/sqlite3/database.rb:69:in ` initialize' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/sqlite3_adapter.rb:13:in `new' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/sqlite3_adapter.rb:13:in `sqlite3_connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:223:in `send' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:223:in `new_connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:245:in `checkout_new_connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:188:in `checkout' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:184:in `loop' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:184:in `checkout' c:/ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:183:in `checkout' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:98:in `connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:326:in `retrieve_connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_specification.rb:123:in `retrieve_connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_specification.rb:115:in `connection' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/query_ca che.rb:9:in `cache' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/query_ca che.rb:28:in `call' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connecti on_adapters/abstract/connection_pool.rb:361:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/head.rb:9:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in ` call' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/params _parser.rb:15:in `call' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/sessio n/cookie_store.rb:93:in `call' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/failsa fe.rb:26:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `synchroniz e' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/dispat cher.rb:114:in `call' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/reload er.rb:34:in `run' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/dispat cher.rb:108:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/rack/static.rb:31:in `c all' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `each' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `call' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/rack/log_tailer.rb:17:i n `call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/content_length.rb:13:in ` call' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/webrick.rb:50:in `service' c:/ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' c:/ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' c:/ruby/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' c:/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:92:in `each' c:/ruby/lib/ruby/1.8/webrick/server.rb:92:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:23:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:82:in `start' c:/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/webrick.rb:14:in `run' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/commands/server.rb:111 c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_origina l_require' c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' script/server:3

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Anyone have ideas for solving the "n items remaining" problem on Internet Explorer?

- by CMPalmer

In my ASP.Net app, which is javascript and jQuery heavy, but also uses master pages and .Net Ajax pieces, I am consistently seeing on the status bar of IE 6 (and occasionally IE 7) the message "2 items remaining" or "15 items remaining" followed by "loading somegraphicsfile.png|gif ." This message never goes away and may or may not prevent some page functionality from running (it certainly seems to bog down, but I'm not positive). I can cause this to happen 99% of the time by just refreshing an .aspx age, but the number of items and, sometimes, the file it mentions varies. Usually it is 2, 3, 12, 13, or 15. I've Googled for answers and there are several suggestions or explanations. Some of them haven't worked for us, and others aren't practical for us to implement or try. Here are some of the ideas/theories: IE isn't caching images right, so it repeatedly asks for the same image if the image is repeated on the page and the server assumes that it should be cached locally since it's already served it in that page context. IE displays the images correctly, but sits and waits for a server response that never comes. Typically the file it says it is waiting on is repeated on the page. The page is using PNG graphics with transparency. Indeed it is, but they are jQuery-UI Themeroller generated graphics which, according to the jQuery-UI folks, are IE safe. The jQuery-UI components are the only things using PNGs. All of our PNG references are in CSS, if that helps. I've changed some of the graphics from PNG to GIF, but it is just as likely to say it's waiting for somegraphicsfile.png as it is for somegraphicsfile.gif Images are being specified in CSS and/or JavaScript but are on things that aren't currently being displayed (display: none items for example). This may be true, but if it is, then I would think preloading images would work, but so far, adding a preloader doesn't do any good. IIS's caching policy is confusing the browser. If this is true, it is only Microsoft server SW having problems with Microsoft's browser (which doesn't surprise me at all). Unfortunately, I don't have much control over the IIS configuration that will be hosting the app. Has anyone seen this and found a way to combat it? Particularly on ASP.Net apps with jQuery and jQuery-UI? UPDATE One other data point: on at least one of the pages, just commenting out the jQuery-UI Datepicker component setup causes the problem to go away, but I don't think (or at least I'm not sure) if that fixes all of the pages. If it does "fix" them, I'll have to swap out plug-ins because that functionality needs to be there. There doesn't seem to be any open issues against jQuery-UI on IE6/7 currently... UPDATE 2 I checked the IIS settings and "enable content expiration" was not set on any of my folders. Unchecking that setting was a common suggestion for fixing this problem. I have another, simpler, page that I can consistently create the error on. I'm using the jQuery-UI 1.6rc6 file (although I've also tried jQuery-UI 1.7.1 with the same results). The problem only occurs when I refresh the page that contains the jQuery-UI Datepicker. If I comment out the Datepicker setup, the problem goes away. Here are a few things I notice when I do this: This page always says "(1 item remaining) Downloading picture http:///images/Calendar_scheduleHS.gif", but only when reloading. When I look at HTTP logging, I see that it requests that image from the server every time it is dynamically turned on, without regard to caching. All of the requests for that graphic are complete and return the graphic correctly. None are marked code 200 or 304 (indicating that the server is telling IE to use the cached version). Why it says waiting on that graphic when all of the requests have completed I have no idea. There is a single other graphic on the page (one of the UI PNG files) that has a code 304 (Not Modified). On another page where I managed to log HTTP traffic with "2 items remaining", two different graphic files (both UI PNGs) had a 304 as well (but neither was the one listed as "Downloading". This error is not innocuous - the page is not fully responsive. For example, if I click on one of the buttons which should execute a client-side action, the page refreshes. Going away from the page and coming back does not produce the error. I have moved the script and script references to the bottom of the content and this doesn't affect this problem. The script is still running in the $(document).ready() though (it's too hairy to divide out unless I absolutely have to). FINAL UPDATE AND ANSWER There were a lot of good answers and suggestions below, but none of them were exactly our problem. The closest one (and the one that led me to the solution) was the one about long running JavaScript, so I awarded the bounty there (I guess I could have answered it myself, but I'd rather reward info that leads to solutions). Here was our solution: We had multiple jQueryUI datepickers that were created on the $(document).ready event in script included from the ASP.Net master page. On this client page, a local script's $(document).ready event had script that destroyed the datepickers under certain conditions. We had to use "destroy" because the previous version of datepicker had a problem with "disable". When we upgraded to the latest version of jQuery UI (1.7.1) and replaced the "destroy"s with "disable"s for the datepickers, the problem went away (or mostly went away - if you do things too fast while the page is loading, it is still possible to get the "n items remaining" status). My theory as to what was happening goes like this: The page content loads and has 12 or so text boxes with the datepicker class. The master page script creates datepickers on those text boxes. IE queues up requests for each calendar graphic independently because IE doesn't know how to properly cache dynamic image requests. Before the requests get processed, the client area script destroys those datepickers so the graphics are no longer needed. IE is left with some number of orphaned requests that it doesn't know what to do with.

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form_dropdown in codeigniter

- by Patrick

I'm getting a strange behaviour from form_dropdown - basically, when I reload the page after validation, the values are screwed up. this bit generates 3 drop downs with days, months and years: $days = array(0 => 'Day...'); for ($i = 1; $i <= 31; $i++) { $days[] = $i; } $months = array(0 => 'Month...', ); for ($i = 1; $i <= 12; $i++) { $months[] = $i; } $years = array(0 => 'Year...'); for ($i = 2010; $i <= 2012; $i++) { $years[$i] = $i; echo "<pre>"; print_r($years); echo "</pre>";//remove this } $selected_day = (isset($selected_day)) ? $selected_day : 0; $selected_month = (isset($selected_month)) ? $selected_month : 0; $selected_year = (isset($selected_year)) ? $selected_year : 0; echo "<p>"; echo form_label('Select date:', 'day', array('class' => 'left')); echo form_dropdown('day', $days, $selected_day, 'class="combosmall"'); echo form_dropdown('month', $months, $selected_month, 'class="combosmall"'); echo form_dropdown('year', $years, $selected_year, 'class="combosmall"'); echo "</p>"; ...and generates this: <p><label for="day" class="left">Select date:</label><select name="day" class="combosmall"> <option value="0" selected="selected">Day...</option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> <option value="6">6</option> <option value="7">7</option> <option value="8">8</option> <option value="9">9</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> <option value="13">13</option> <option value="14">14</option> <option value="15">15</option> <option value="16">16</option> <option value="17">17</option> <option value="18">18</option> <option value="19">19</option> <option value="20">20</option> <option value="21">21</option> <option value="22">22</option> <option value="23">23</option> <option value="24">24</option> <option value="25">25</option> <option value="26">26</option> <option value="27">27</option> <option value="28">28</option> <option value="29">29</option> <option value="30">30</option> <option value="31">31</option> </select><select name="month" class="combosmall"> <option value="0" selected="selected">Month...</option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> <option value="6">6</option> <option value="7">7</option> <option value="8">8</option> <option value="9">9</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> </select><select name="year" class="combosmall"> <option value="0" selected="selected">Year...</option> <option value="2010">2010</option> <option value="2011">2011</option> <option value="2012">2012</option> </select></p> however, when the form is reloaded after validation, the same code above generates this:  <select name="year" class="combosmall"> <option value="0" selected="selected">Year...</option> <option value="1">2010</option> <option value="2">2011</option> <option value="3">2012</option> </select> So basically the value start from 1 instead of 2010. The same happens to days and months but obviously it doesn't make any difference in this particular case as the values would start from 1 anyway. How can I fix this - and why does it happen?

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Exception with RubyAMF and Ruby 1.9 although code works

- by Tam

I'm getting an exception with RubyAMF using Ruby 1.9 and Rails 2.3.5. Although code afterward executes normally I'm not very comfortable with seeing such exception in the log file. Do you know what is causing it: >>>>>>>> RubyAMF >>>>>>>>> #<RubyAMF::Actions::PrepareAction:0x0000010139ff48> took: 0.00020 secs >>>>>>>> RubyAMF >>>>>>>>> #<RubyAMF::Actions::RailsInvokeAction:0x0000010139ff10> took: 0.29973 secs You have a nil object when you didn't expect it! You might have expected an instance of Array. The error occurred while evaluating nil.include? /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activerecord-2.3.5/lib/active_record/attribute_methods.rb:142:in `create_time_zone_conversion_attribute?' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activerecord-2.3.5/lib/active_record/attribute_methods.rb:75:in `block in define_attribute_methods' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activerecord-2.3.5/lib/active_record/attribute_methods.rb:71:in `each' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activerecord-2.3.5/lib/active_record/attribute_methods.rb:71:in `define_attribute_methods' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activerecord-2.3.5/lib/active_record/attribute_methods.rb:242:in `method_missing' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activerecord-2.3.5/lib/active_record/base.rb:2832:in `hash' /Users/tammam56/lal/vendor/plugins/ruby_amf/io/amf_serializer.rb:366:in `hash' /Users/tammam56/lal/vendor/plugins/ruby_amf/io/amf_serializer.rb:366:in `hash' /Users/tammam56/lal/vendor/plugins/ruby_amf/io/amf_serializer.rb:366:in `[]=' /Users/tammam56/lal/vendor/plugins/ruby_amf/io/amf_serializer.rb:366:in `store_object' /Users/tammam56/lal/vendor/plugins/ruby_amf/io/amf_serializer.rb:234:in `write_amf3_object' /Users/tammam56/lal/vendor/plugins/ruby_amf/io/amf_serializer.rb:154:in `write_amf3' /Users/tammam56/lal/vendor/plugins/ruby_amf/io/amf_serializer.rb:78:in `write' /Users/tammam56/lal/vendor/plugins/ruby_amf/io/amf_serializer.rb:70:in `block in run' /Users/tammam56/lal/vendor/plugins/ruby_amf/io/amf_serializer.rb:56:in `upto' /Users/tammam56/lal/vendor/plugins/ruby_amf/io/amf_serializer.rb:56:in `run' /Users/tammam56/lal/vendor/plugins/ruby_amf/app/filters.rb:91:in `block in run' /Users/tammam56/.rvm/rubies/ruby-1.9.1-p378/lib/ruby/1.9.1/benchmark.rb:309:in `realtime' /Users/tammam56/lal/vendor/plugins/ruby_amf/app/filters.rb:91:in `run' /Users/tammam56/lal/vendor/plugins/ruby_amf/app/filters.rb:12:in `block in run' /Users/tammam56/lal/vendor/plugins/ruby_amf/app/filters.rb:11:in `each' /Users/tammam56/lal/vendor/plugins/ruby_amf/app/filters.rb:11:in `run' /Users/tammam56/lal/vendor/plugins/ruby_amf/app/rails_gateway.rb:28:in `service' /Users/tammam56/lal/app/controllers/rubyamf_controller.rb:19:in `gateway' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/base.rb:1331:in `perform_action' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/filters.rb:617:in `call_filters' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/filters.rb:610:in `perform_action_with_filters' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/benchmarking.rb:68:in `block in perform_action_with_benchmark' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:17:in `block in ms' /Users/tammam56/.rvm/rubies/ruby-1.9.1-p378/lib/ruby/1.9.1/benchmark.rb:309:in `realtime' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activesupport-2.3.5/lib/active_support/core_ext/benchmark.rb:17:in `ms' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/benchmarking.rb:68:in `perform_action_with_benchmark' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/rescue.rb:160:in `perform_action_with_rescue' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/flash.rb:146:in `perform_action_with_flash' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/base.rb:532:in `process' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/filters.rb:606:in `process_with_filters' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/base.rb:391:in `process' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/base.rb:386:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/routing/route_set.rb:437:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:87:in `dispatch' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:121:in `_call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:130:in `block in build_middleware_stack' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in `block in call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:9:in `cache' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:28:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/string_coercion.rb:25:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/rack-1.0.1/lib/rack/head.rb:9:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/params_parser.rb:15:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/session/cookie_store.rb:93:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/failsafe.rb:26:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/rack-1.0.1/lib/rack/lock.rb:11:in `block in call' <internal:prelude>:8:in `synchronize' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:114:in `block in call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/reloader.rb:34:in `run' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:108:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/rails-2.3.5/lib/rails/rack/static.rb:31:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in `block in call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `each' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/rails-2.3.5/lib/rails/rack/log_tailer.rb:17:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/rack-1.0.1/lib/rack/content_length.rb:13:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/rack-1.0.1/lib/rack/chunked.rb:15:in `call' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/rack-1.0.1/lib/rack/handler/mongrel.rb:64:in `process' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/mongrel-1.1.5/lib/mongrel.rb:159:in `block in process_client' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `each' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `process_client' /Users/tammam56/.rvm/gems/ruby-1.9.1-p378/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `block (2 levels) in run '

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Hosted bug tracking system with mercurial repositories (Summary of options & request for opinions)

- by Mark Booth

The Question What hosted mercurial repository/bug tracking system or systems have you used? Would you recommend it to others? Are there serious flaws, either in the repository hosting or the bug tracking features that would make it difficult to recommend it? Do you have any other experiences with it or opinions of it that you would like to share? If you have used other non mercurial hosted repository/bug tracking systems, how does it compare? (If I understand correctly, the best format for this type of community-wiki style question is one answer per option, if you have experienced if several) Background I have been looking into options for setting up a bug/issue tracking database and found some valuable advice in this thread and this. But then I got to thinking that a hosted solution might not only solve the problem of tracking bugs, but might also solve the problem we have accessing our mercurial source code repositories while at customer sites around the world. Since we currently have no way to serve mercurial repositories over ssl, when I am at a customer site I have to connect my laptop via VPN to my work network and access the mercurial repositories over a samba share (even if it is just to synce twice a day). This is excruciatingly slow on high latency networks and can be impossible with some customers' firewalls. Even if we could run a TRAC or Redmine server here (thanks turnkey), I'm not sure it would be much quicker as our internet connection is over-stretched as it is. What I would like is for developers to be able to be able to push/pull to/from a remote repository, servicing engineers to be able to pull from a remote repository and for customers (both internal and external) to be able to submit bug/issue reports. Initial options The two options I found were Assembla and Jira. Looking at Assembla I thought the 'group' price looked reasonable, but after enquiring, found that each workspace could only contain a single repository. Since each of our products might have up to a dozen repositories (mostly for libraries) which need to be managed seperately for each product, I could see it getting expensive really quickly. On the plus side, it appears that 'users' are just workspace members, so you can have as many client users (people who can only submit support tickets and track their own tickets) without using up your user allocation. Jira only charges based on the number of users, unfortunately client users also count towards this, if you want them to be able to track their tickets. If you only want clients to be able to submit untracked issues, you can let them submit anonymously, but that doesn't feel very professional to me. More options Looking through MercurialHosting page that @Paidhi suggested, I've added the options which appear to offer private repositories, along with another that I found with a web search. Prices are as per their website today (29th March 2010). Corrections welcome in the future. Anyway, here is my summary, according to the information given on their websites: Assembla, http://www.assembla.com/, looks to be a reasonable price, but suffers only one repository per workspace, so three projects with 6 repos each would use up most of the spaces associated with a $99/month professional account (20 spaces). Bug tracking is based on Trac. Mercurial+Trac support was announced in a blog entry in 2007, but they only list SVN and Git on their Features web page. Cost: $24, $49, $99 & $249/month for 40, 40, unlimited, unlimited users and 1, 10, 20, 100 workspaces. SSL based push/pull? Website https login. BitBucket, http://bitbucket.org/plans/, is primarily a mercurial hosting site for open source projects, with SSL support, but they have an integrated bug tracker and they are cheap for private repositories. It has it’s own issues tracker, but also integrates with Lighthouse & FogBugz. Cost: $0, $5, $12, $50 & $100/month for 1, 5, 15, 25 & 150 private repositories. SSL based push/pull. No https on website login, but supports OpenID, so you can chose an OpenID provider with https login. Codebase HQ, http://www.codebasehq.com/, supports Hg and is almost as cheap as BitBucket. Cost: £5, £13, £21 & £40/month for 3, 15, 30 & 60 active projects, unlimited repositories, unlimited users (except 10 users at £5/month) and 0.5, 2, 4 & 10GB. SSL based push/pull? Website https login? Firefly, http://www.activestate.com/firefly/, by ActiveState looks interesting, but the website is a little light on details, such as whether you can only have one repository per project or not. Cost: $9, $19, & £39/month for 1, 5 & 30 private projects, with a 0.5, 1.5 & 3 GB storage limit. SSL based push/pull? Website https login. Jira, http://www.atlassian.com/software/jira/, isn’t limited by the number of repositories you can have, but by ‘user’. It could work out quite expensive if we want client users to be able to track their issues, since they would need a full user account to be created for them. Also, while there is a Mercurial extension to support jira, there is no ‘Advanced integration’ for Mercurial from Atlassian Fisheye. Cost: $150, $300, $400, $500, $700/month for 10, 25, 50, 100, 100+ users. SSL based push/pull? Website https login. Kiln & FogBugz On Demand, http://fogcreek.com/Kiln/IntrotoOnDemand.html, integrates Kilns mercurial DVCS features with FogBugz, where the combined package is much cheaper than the component parts. Also, the Fogbugz integration is supposedly excellent. *8’) Cost: £30/developer/month ($5/d/m more than either on their own). SSL based push/pull? SourceRepo, http://sourcerepo.com/, also supports HG and is even cheaper than BitBucket & Codebase. Cost: $4, $7 & $13/month for 1, unlimited & unlimited repositories/trac/redmine instances and 500MB, 1GB & 3GB storage. SSL based push/pull. Website https login. Edit: 29th March 2010 & Bounty I split this question into sections, made the questions themselves more explicit, added other options from the research I have done since my first posting and made this community wiki, since I now understand what CW is for. *8') Also, I've added a bounty to encourage people to offer their opinions. At the end of the bounty period, I will award the bounty to whoever writes the best review (good or bad), irrespective of the number of up/down votes it gets. Given that it's probably more important to avoid bad providers than find the absolute best one, 'bad reviews' could be considered more important than good ones.

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xslt cookbook example not working

- by Liza dawson

Hi I am working on this from xslt cookbook type my.xml <?xml version="1.0" encoding="UTF-8"?> <people> <person name="Al Zehtooney" age="33" sex="m" smoker="no"/> <person name="Brad York" age="38" sex="m" smoker="yes"/> <person name="Charles Xavier" age="32" sex="m" smoker="no"/> <person name="David Williams" age="33" sex="m" smoker="no"/> <person name="Edward Ulster" age="33" sex="m" smoker="yes"/> <person name="Frank Townsend" age="35" sex="m" smoker="no"/> <person name="Greg Sutter" age="40" sex="m" smoker="no"/> <person name="Harry Rogers" age="37" sex="m" smoker="no"/> <person name="John Quincy" age="43" sex="m" smoker="yes"/> <person name="Kent Peterson" age="31" sex="m" smoker="no"/> <person name="Larry Newell" age="23" sex="m" smoker="no"/> <person name="Max Milton" age="22" sex="m" smoker="no"/> <person name="Norman Lamagna" age="30" sex="m" smoker="no"/> <person name="Ollie Kensington" age="44" sex="m" smoker="no"/> <person name="John Frank" age="24" sex="m" smoker="no"/> <person name="Mary Williams" age="33" sex="f" smoker="no"/> <person name="Jane Frank" age="38" sex="f" smoker="yes"/> <person name="Jo Peterson" age="32" sex="f" smoker="no"/> <person name="Angie Frost" age="33" sex="f" smoker="no"/> <person name="Betty Bates" age="33" sex="f" smoker="no"/> <person name="Connie Date" age="35" sex="f" smoker="no"/> <person name="Donna Finster" age="20" sex="f" smoker="no"/> <person name="Esther Gates" age="37" sex="f" smoker="no"/> <person name="Fanny Hill" age="33" sex="f" smoker="yes"/> <person name="Geta Iota" age="27" sex="f" smoker="no"/> <person name="Hillary Johnson" age="22" sex="f" smoker="no"/> <person name="Ingrid Kent" age="21" sex="f" smoker="no"/> <person name="Jill Larson" age="20" sex="f" smoker="no"/> <person name="Kim Mulrooney" age="41" sex="f" smoker="no"/> <person name="Lisa Nevins" age="21" sex="f" smoker="no"/> </people> type generic-attr-to-csv.xslt <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:csv="http://www.ora.com/XSLTCookbook/namespaces/csv"> <xsl:param name="delimiter" select=" ',' "/> <xsl:output method="text" /> <xsl:strip-space elements="*"/> <xsl:template match="/"> <xsl:for-each select="$columns"> <xsl:value-of select="@name"/> <xsl:if test="position( ) != last( )"> <xsl:value-of select="$delimiter/> </xsl:if> </xsl:for-each> <xsl:text>
</xsl:text> <xsl:apply-templates/> </xsl:template> <xsl:template match="/*/*"> <xsl:variable name="row" select="."/> <xsl:for-each select="$columns"> <xsl:apply-templates select="$row/@*[local-name(.)=current( )/@attr]" mode="csv:map-value"/> <xsl:if test="position( ) != last( )"> <xsl:value-of select="$delimiter"/> </xsl:if> </xsl:for-each> <xsl:text>
</xsl:text> </xsl:template> <xsl:template match="@*" mode="map-value"> <xsl:value-of select="."/> </xsl:template> </xsl:stylesheet> type my.xsl <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:csv="http://www.ora.com/XSLTCookbook/namespaces/csv"> <xsl:import href="generic-attr-to-csv.xslt"/>  <xsl:variable name="columns" select="document('')/*/csv:column"/> <csv:column name="Name" attr="name"/> <csv:column name="Age" attr="age"/> <csv:column name="Gender" attr="sex"/> <csv:column name="Smoker" attr="smoker"/>  <xsl:template match="@sex" mode="csv:map-value"> <xsl:choose> <xsl:when test=".='m'">male</xsl:when> <xsl:when test=".='f'">female</xsl:when> <xsl:otherwise>error</xsl:otherwise> </xsl:choose> </xsl:template> </xsl:stylesheet> using the apache xalan parser D:\Test>java org.apache.xalan.xslt.Process -in my.xml -xsl my.xsl -out my.csv [Fatal Error] generic-attr-to-csv.xslt:15:6: The value of attribute "select" associated with an element type "xsl:v alue-of" must not contain the '<' character. file:///D:/Test/generic-attr-to-csv.xslt; Line #15; Column #6; org.xml.sax.SAXParseException: The value of attribut e "select" associated with an element type "xsl:value-of" must not contain the '<' character. java.lang.NullPointerException at org.apache.xalan.transformer.TransformerImpl.createSerializationHandler(TransformerImpl.java:1171) at org.apache.xalan.transformer.TransformerImpl.createSerializationHandler(TransformerImpl.java:1060) at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1268) at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1251) at org.apache.xalan.xslt.Process.main(Process.java:1048) Exception in thread "main" java.lang.RuntimeException at org.apache.xalan.xslt.Process.doExit(Process.java:1155) at org.apache.xalan.xslt.Process.main(Process.java:1128) Any ideas what am i doing wrong

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Delphi - Proper way to page though data.

- by Brad

I have a string list (TStrings) that has a couple thousand items in it. I need to process them in groups of 100. I basically want to know what the best way to do the loop is in Delphi. I'm hitting a brick wall when I'm trying to figure it out. Thanks unit Unit2; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm2 = class(TForm) Memo1: TMemo; Memo2: TMemo; Button1: TButton; procedure Button1Click(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form2: TForm2; implementation Uses math; {$R *.dfm} procedure TForm2.Button1Click(Sender: TObject); var I:Integer; pages:Integer; str:string; begin pages:= ceil(memo1.Lines.Count/100) ; memo2.Lines.add('Total Pages: '+inttostr(pages)); memo2.Lines.add('Total Items: '+inttostr(memo1.Lines.Count)); // Should just do in batches of 100 VS entire list for I := 0 to memo1.lines.Count - 1 do begin if str '' then str:= str+#10+ memo1.Lines.Strings[i] else str:= memo1.Lines.Strings[i]; end; //I need to stop here every 100 items, then process the items. memo2.Lines.Add(str); end; end. Example form object Form2: TForm2 Left = 0 Top = 0 Caption = 'Form2' ClientHeight = 245 ClientWidth = 527 Color = clBtnFace Font.Charset = DEFAULT_CHARSET Font.Color = clWindowText Font.Height = -11 Font.Name = 'Tahoma' Font.Style = [] OldCreateOrder = False PixelsPerInch = 96 TextHeight = 13 object Memo1: TMemo Left = 16 Top = 8 Width = 209 Height = 175 Lines.Strings = ( '4xlt columbia thunder storm jacket' '5 things about thunder storms' 'a thunder storm with a lot of thunder ' 'and lighting sccreensaver' 'a thunder storm with a lot of thunder ' 'and lighting screensaver with no nag ' 'screens' 'all about thunder storms' 'all about thunderstorms for kids' 'amazing tornado videos and ' 'thunderstorm videos' 'are thunder storms louder in ohio?' 'bad thunder storms' 'bathing in thunder storm' 'best thunderstorm pictures' 'cartoon thunder storms' 'celtic thunder storm' 'central valley thunder storm' 'chicago thunderstorm pictures' 'cool thunderstorm pictures' 'current thunderstorm warnings' 'does thunder storms in december mean ' 'snow will be coming' 'facts about thunderstorms for kids' 'facts on thunderstorms for kids' 'fedex thunderstorm video' 'florida thunderstorms facts' 'free relaxing thunderstorm music' 'free soothing thunderstorm sounds ' 'online' 'free thunderstorm mp3' 'free thunderstorm mp3 download' 'free thunderstorm mp3 downloads' 'free thunderstorm mp3s' 'free thunderstorm music' 'free thunderstorm pictures' 'free thunderstorm sound effects' 'free thunderstorm sounds' 'free thunderstorm sounds cd' 'free thunderstorm sounds mp3' 'free thunderstorm sounds online' 'free thunderstorm soundscape' 'free thunderstorm video' 'free thunderstorm video download' 'free thunderstorm videos' 'god of storm and thunder' 'horses storm thunder rain' 'how do thunder storms form' 'how far away is a thunder storm' 'how long do thunder storms last' 'ice cube in a thunder storm' 'indoor thunderstorm safety tips' 'information about thunderstorms for kids' 'interesting thunderstorm facts' 'is it dangerous to shower during thunder ' 'storm' 'is there frequently thunder during snow ' 'storms' 'isolated thunderstorms' 'it'#39's just a thunder storm baby there is ' 'nothing you should fear lyrics' 'lightning & thunder storm safety' 'lightning and thunderstorm facts' 'lightning and thunderstorms facts' 'lightning and thunderstorms for kids' 'listen to thunderstorm sounds online' 'mississauga thunder storm' 'nature sounds free mp3 thunder storm' 'only about thunderstorms facts' 'original storm deep thunderstick' 'phone use during thunder storms' 'pictures of thunderstorms' 'pocono thunder storm' 'posters of thunder storms' 'power rangers ninja storm' 'power rangers thunder storm' 'power rangers thunder storm cast' 'power rangers thunder storm games' 'power rangers thunder storm morphers' 'power rangers thunder storm part 1' 'power rangers thunder storm part 2' 'power rangers thunderstorm' 'power rangers thunderstorm cannon' 'power rangers thunderstorm deluxe ' 'megazord' 'power rangers thunderstorm games' 'power rangers thunderstorm megazord' 'power rangers thunderstorm part 2' 'power rangers thunderstorm pictures' 'power rnager ninja storm thunder staff' 'powerful thunder and lightning storms' 'precambrian thunder storms' 'rain thunderstorm mp3' 'rain thunderstorm pictures' 'relaxing thunderstorm music' 'reminds me of ohio river thunder lighten ' 'storms' 'sacramento thunder storm' 'safety tips for when your caught in a ' 'thunder storm' 'scattered thunderstorms' 'schemer puts his head in the thunder ' 'storm' 'sedative thunder storm' 'server thunder storms' 'severe supercell thunderstorm pictures' 'severe thunder storm pictures' 'severe thunder storms' 'severe thunderstorm facts' 'severe thunderstorm pictures' 'severe thunderstorm pictures hail' 'severe thunderstorm pictures in alberta' 'severe thunderstorm pictures tornado' 'severe thunderstorm safety' 'severe thunderstorm safety tips' 'severe thunderstorm videos' 'severe thunderstorm warning' 'severe thunderstorm warning los ' 'angeles' 'severe thunderstorm warning signs' 'severe thunderstorm warnings' 'severe thunderstorms' 'severe thunderstorms facts' 'shakespeare use thunder storm for ' 'cosmic disorder julius caesar' 'soothing thunderstorm sounds online' 'sound effects of severe thunder storm' 'sound of rain storm finger snapping ' 'thunder chorus' 'split thunder storm' 'storm 3d thunder power' 'storm dark thunder' 'storm dark thunder bowling ball' 'storm dark thunder bowling ball sale' 'storm dark thunder for sale' 'storm dark thunder pearl' 'storm dark thunder pearl bowling ball' 'storm dark thunder review' 'storm dark thunder shirt' 'storm dark thunderball' 'storm deep thunder' 'storm deep thunder 11' 'storm deep thunder 15' 'storm deep thunder 15 lure' 'storm deep thunder 2' 'storm deep thunder lures' 'storm deep thunderstick' 'storm deep thunderstick crankbaits' 'storm deep thunderstick dts09' 'storm deep thunderstick jr' 'storm deep thunderstick lures' 'storm deep thundersticks' 'storm rolling thunder 3 ball roller' 'storm rolling thunder bowling bag' 'storm rolling thunder three ball bowling ' 'bag' 'storm shallow thunder' 'storm shallow thunder 15' 'storm thunder claw' 'storm thunder craw' 'storm watches thunder' 'storms with constant lightning and ' 'thunder non-stop' 'supercell thunder storms' 'supercell thunderstorm pictures' 'supercell thunderstorms' 'swimming pools thunder storms' 'tampa + lightning strikes + thunder ' 'storms' 'texas thunderstorm pictures' 'texas thunderstorm warnings' 'thunder and lightning storm' 'thunder and lighting storms' 'thunder and lightning storms' 'thunder bay snow storm video' 'thunder storm' 'thunder storm and windmill' 'thunder storm cd' 'thunder storm cloud' 'thunder storm clouds' 'thunder storm dog peppermint oil' 'thunder storm in winter' 'thunder storm in winter and weather ' 'prediction' 'thunder storm lx-3 & road blaster psx ' 'download' 'thunder storm occurances' 'thunder storm photos' 'thunder storm poems' 'thunder storm safety' 'thunder storm sign' 'thunder storm sounds' 'thunder storms' 'thunder storms and deaths' 'thunder storms and ilghting' 'thunder storms and lighting' 'thunder storms cd' 'thunder storms in the arctic arctic ' 'weather' 'thunder storms in winter' 'thunder storms on you tub' 'thunder storms pics' 'thunder storms with rain' 'thunderstorm' 'thunderstorm backgrounds' 'thunderstorm capital' 'thunderstorm capital 2008 dorfman' 'thunderstorm capital in boston' 'thunderstorm capital llc' 'thunderstorm capital of canada' 'thunderstorm capital of the us' 'thunderstorm capital of the world' 'thunderstorm facts' 'thunderstorm facts for kids' 'thunderstorm facts hail' 'thunderstorm facts tornadoes' 'thunderstorm mp3' 'thunderstorm mp3 download' 'thunderstorm mp3 download free' 'thunderstorm mp3 downloads' 'thunderstorm mp3 downloads free' 'thunderstorm mp3 files' 'thunderstorm mp3 free' 'thunderstorm mp3 free download' 'thunderstorm mp3 free downloads' 'thunderstorm mp3 torrent' 'thunderstorm mp3s' 'thunderstorm music' 'thunderstorm music cd' 'thunderstorm music downloads' 'thunderstorm music free' 'thunderstorm music playlists' 'thunderstorm music rain' 'thunderstorm pics' 'thunderstorm pictures' 'thunderstorm pictures for kids' 'thunderstorm safety' 'thunderstorm safety for kids' 'thunderstorm safety precautions' 'thunderstorm safety procedures' 'thunderstorm safety rules' 'thunderstorm safety tips' 'thunderstorm safety tips for kids' 'thunderstorm safety tips shelter' 'thunderstorm safety tips trees' 'thunderstorm sound effects' 'thunderstorm sound effects cd' 'thunderstorm sound effects download' 'thunderstorm sound effects free' 'thunderstorm sound effects free ' 'download' 'thunderstorm sound effects free music ' 'feature audio' 'thunderstorm sound effects mp3' 'thunderstorm sound effects rain' 'thunderstorm sounds' 'thunderstorm sounds cd' 'thunderstorm sounds download' 'thunderstorm sounds for sleep' 'thunderstorm sounds for sleeping' 'thunderstorm sounds free' 'thunderstorm sounds free download' 'thunderstorm sounds free downloads' 'thunderstorm sounds mp3' 'thunderstorm sounds mp3 download' 'thunderstorm sounds mp3 free' 'thunderstorm sounds online' 'thunderstorm sounds online for free' 'thunderstorm sounds online free' 'thunderstorm sounds sleep' 'thunderstorm sounds streaming' 'thunderstorm sounds torrent' 'thunderstorm soundscape' 'thunderstorm soundscapes' 'thunderstorm video' 'thunderstorm video clips' 'thunderstorm video download' 'thunderstorm video downloads' 'thunderstorm videos' 'thunderstorm videos for kids' 'thunderstorm videos lightning' 'thunderstorm videos online' 'thunderstorm wallpaper' 'thunderstorm warning' 'thunderstorm warning brisbane' 'thunderstorm warning definition' 'thunderstorm warning los angeles' 'thunderstorm warning san diego' 'thunderstorm warning san mateo county' 'thunderstorm warning santa barbara' 'thunderstorm warning santa clara' 'thunderstorm warning santa clara ' 'county' 'thunderstorm warning signal' 'thunderstorm warning signs' 'thunderstorm warning vs watch' 'thunderstorm warnings' 'thunderstorm warnings and watches' 'thunderstorm warnings for nj' 'thunderstorm warnings qld' 'thunderstorms' 'thunderstorms facts' 'thunderstorms facts for kids' 'thunderstorms for kids' 'tornados and thunder storms animated' 'understanding thunderstorms for kids' 'watch thunderstorm videos' 'weather underground forecast ' 'thunderstorms' 'what causes thunder storms' 'what is a thunder storm' 'where d thunder storms occur') TabOrder = 0 end object Memo2: TMemo Left = 240 Top = 8 Width = 265 Height = 129 Lines.Strings = ( 'Memo2') TabOrder = 1 end object Button1: TButton Left = 384 Top = 184 Width = 75 Height = 25 Caption = 'Button1' TabOrder = 2 OnClick = Button1Click end end

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Problems Mapping a List of Serializable Objets with JDO

- by Sergio del Amo

I have two classes Invoice and InvoiceItem. I would like Invoice to have a List of InvoiceItem Objets. I have red that the list must be of primitive or serializable objects. I have made InvoiceItem Serializable. Invoice.java looks like import java.util.ArrayList; import java.util.Date; import java.util.List; import javax.jdo.annotations.Column; import javax.jdo.annotations.Embedded; import javax.jdo.annotations.EmbeddedOnly; import javax.jdo.annotations.IdGeneratorStrategy; import javax.jdo.annotations.IdentityType; import javax.jdo.annotations.PersistenceCapable; import javax.jdo.annotations.Persistent; import javax.jdo.annotations.Element; import javax.jdo.annotations.PrimaryKey; import com.google.appengine.api.datastore.Key; import com.softamo.pelicamo.shared.InvoiceCompanyDTO; @PersistenceCapable(identityType = IdentityType.APPLICATION) public class Invoice { @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) private Long id; @Persistent private String number; @Persistent private Date date; @Persistent private List<InvoiceItem> items = new ArrayList<InvoiceItem>(); public Invoice() {} public Long getId() { return id; } public void setId(Long id) {this.id = id;} public String getNumber() { return number;} public void setNumber(String invoiceNumber) { this.number = invoiceNumber;} public Date getDate() { return date;} public void setDate(Date invoiceDate) { this.date = invoiceDate;} public List<InvoiceItem> getItems() { return items;} public void setItems(List<InvoiceItem> items) { this.items = items;} } and InvoiceItem.java looks like import java.io.Serializable; import java.math.BigDecimal; import javax.jdo.annotations.PersistenceCapable; import javax.jdo.annotations.Persistent; @PersistenceCapable public class InvoiceItem implements Serializable { @Persistent private BigDecimal amount; @Persistent private float quantity; public InvoiceItem() {} public BigDecimal getAmount() { return amount;} public void setAmount(BigDecimal amount) { this.amount = amount;} public float getQuantity() { return quantity;} public void setQuantity(float quantity) { this.quantity = quantity;} } I get the next error while running a JUnit test. javax.jdo.JDOUserException: Attempt to handle persistence for object using datastore-identity yet StoreManager for this datastore doesn't support that identity type at org.datanucleus.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java:375) at org.datanucleus.jdo.JDOPersistenceManager.jdoMakePersistent(JDOPersistenceManager.java:674) at org.datanucleus.jdo.JDOPersistenceManager.makePersistent(JDOPersistenceManager.java:694) at com.softamo.pelicamo.server.InvoiceStore.add(InvoiceStore.java:23) at com.softamo.pelicamo.server.PopulateStorage.storeInvoices(PopulateStorage.java:58) at com.softamo.pelicamo.server.PopulateStorage.run(PopulateStorage.java:46) at com.softamo.pelicamo.server.InvoiceStoreTest.setUp(InvoiceStoreTest.java:44) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) NestedThrowablesStackTrace: Attempt to handle persistence for object using datastore-identity yet StoreManager for this datastore doesn't support that identity type org.datanucleus.exceptions.NucleusUserException: Attempt to handle persistence for object using datastore-identity yet StoreManager for this datastore doesn't support that identity type at org.datanucleus.state.AbstractStateManager.<init>(AbstractStateManager.java:128) at org.datanucleus.state.JDOStateManagerImpl.<init>(JDOStateManagerImpl.java:215) at org.datanucleus.jdo.JDOAdapter.newStateManager(JDOAdapter.java:119) at org.datanucleus.state.StateManagerFactory.newStateManagerForPersistentNew(StateManagerFactory.java:150) at org.datanucleus.ObjectManagerImpl.persistObjectInternal(ObjectManagerImpl.java:1297) at org.datanucleus.sco.SCOUtils.validateObjectForWriting(SCOUtils.java:1476) at org.datanucleus.store.mapped.scostore.ElementContainerStore.validateElementForWriting(ElementContainerStore.java:380) at org.datanucleus.store.mapped.scostore.FKListStore.validateElementForWriting(FKListStore.java:609) at org.datanucleus.store.mapped.scostore.FKListStore.internalAdd(FKListStore.java:344) at org.datanucleus.store.appengine.DatastoreFKListStore.internalAdd(DatastoreFKListStore.java:146) at org.datanucleus.store.mapped.scostore.AbstractListStore.addAll(AbstractListStore.java:128) at org.datanucleus.store.mapped.mapping.CollectionMapping.postInsert(CollectionMapping.java:157) at org.datanucleus.store.appengine.DatastoreRelationFieldManager.runPostInsertMappingCallbacks(DatastoreRelationFieldManager.java:216) at org.datanucleus.store.appengine.DatastoreRelationFieldManager.access$200(DatastoreRelationFieldManager.java:47) at org.datanucleus.store.appengine.DatastoreRelationFieldManager$1.apply(DatastoreRelationFieldManager.java:115) at org.datanucleus.store.appengine.DatastoreRelationFieldManager.storeRelations(DatastoreRelationFieldManager.java:80) at org.datanucleus.store.appengine.DatastoreFieldManager.storeRelations(DatastoreFieldManager.java:955) at org.datanucleus.store.appengine.DatastorePersistenceHandler.storeRelations(DatastorePersistenceHandler.java:527) at org.datanucleus.store.appengine.DatastorePersistenceHandler.insertPostProcess(DatastorePersistenceHandler.java:299) at org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObjects(DatastorePersistenceHandler.java:251) at org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObject(DatastorePersistenceHandler.java:235) at org.datanucleus.state.JDOStateManagerImpl.internalMakePersistent(JDOStateManagerImpl.java:3185) at org.datanucleus.state.JDOStateManagerImpl.makePersistent(JDOStateManagerImpl.java:3161) at org.datanucleus.ObjectManagerImpl.persistObjectInternal(ObjectManagerImpl.java:1298) at org.datanucleus.ObjectManagerImpl.persistObject(ObjectManagerImpl.java:1175) at org.datanucleus.jdo.JDOPersistenceManager.jdoMakePersistent(JDOPersistenceManager.java:669) at org.datanucleus.jdo.JDOPersistenceManager.makePersistent(JDOPersistenceManager.java:694) at com.softamo.pelicamo.server.InvoiceStore.add(InvoiceStore.java:23) at com.softamo.pelicamo.server.PopulateStorage.storeInvoices(PopulateStorage.java:58) at com.softamo.pelicamo.server.PopulateStorage.run(PopulateStorage.java:46) at com.softamo.pelicamo.server.InvoiceStoreTest.setUp(InvoiceStoreTest.java:44) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Moreover, when I try to store an invoice with a list of items through my app. In the development console I can see that items are not persisted to any field while the rest of the invoice class properties are stored properly. Does anyone know what I am doing wrong? Solution As pointed in the answers, the error says that the InvoiceItem class was missing a primaryKey. I tried with: @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) private Long id; But I was getting javax.jdo.JDOFatalUserException: Error in meta-data for InvoiceItem.id: Cannot have a java.lang.Long primary key and be a child object (owning field is Invoice.items). In persist list of objets, @aldrin pointed that For child classes the primary key has to be a com.google.appengine.api.datastore.Key value (or encoded as a string) see So, I tried with Key. It worked. @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) private Key id;

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Something is making my page perform an Ajax call multiple times... [read: I've never been more frust

- by Jack Webb-Heller

NOTE: This is a long question. I've explained all the 'basics' at the top and then there's some further (optional) information for if you need it. Hi folks Basically last night this started happening at about 9PM whilst I was trying to restructure my code to make it a bit nicer for the designer to add a few bits to. I tried to fix it until 2AM at which point I gave up. Came back to it this morning, still baffled. I'll be honest with you, I'm a pretty bad Javascript developer. Since starting this project Javascript has been completely new to me and I've just learn as I went along. So please forgive me if my code structure is really bad (perhaps give a couple of pointers on how to improve it?). So, to the problem: to reproduce it, visit http://furnace.howcode.com (it's far from complete). This problem is a little confusing but I'd really appreciate the help. So in the second column you'll see three tabs The 'Newest' tab is selected by default. Scroll to the bottom, and 3 further results should be dynamically fetched via Ajax. Now click on the 'Top Rated' tab. You'll see all the results, but ordered by rating Scroll to the bottom of 'Top Rated'. You'll see SIX results returned. This is where it goes wrong. Only a further three should be returned (there are 18 entries in total). If you're observant you'll notice two 'blocks' of 3 returned. The first 'block' is the second page of results from the 'Newest' tab. The second block is what I just want returned. Did that make any sense? Never mind! So basically I checked this out in Firebug. What happens is, from a 'Clean' page (first load, nothing done) it calls ONE POST request to http://furnace.howcode.com/code/loadmore . But every time you load a new one of the tabs, it makes an ADDITIONAL POST request each time where there should normally only be ONE. So, can you help me? I'd really appreciate it! At this point you could start independent investigation or read on for a little further (optional) information. Thanks! Jack Further Info (may be irrelevant but here for reference): It's almost like there's some Javascript code or something being left behind that duplicates it each time. I thought it might be this code that I use to detect when the browser is scrolled to the bottom: var col = $('#col2'); col.scroll(function(){ if (col.outerHeight() == (col.get(0).scrollHeight - col.scrollTop())) loadMore(1); }); So what I thought was that code was left behind, and so every time you scroll #col2 (which contains different data for each tab) it detected that and added it for #newest as well. So, I made each tab click give #col2 a dynamic class - either .newestcol, .featuredcol, or .topratedcol. And then I changed the var col=$('.newestcol');dynamically so it would only detect it individually for each tab (makin' any sense?!). But hey, that didn't do anything. Another useful tidbit: here's the PHP for http://furnace.howcode.com/code/loadmore: $kind = $this->input->post('kind'); if ($kind == 1){ // kind is 1 - newest $start = $this->input->post('currentpage'); $data['query'] = "SELECT code.id AS codeid, code.title AS codetitle, code.summary AS codesummary, code.author AS codeauthor, code.rating AS rating, code.date, code_tags.*, tags.*, users.firstname AS authorname, users.id AS authorid, GROUP_CONCAT(tags.tag SEPARATOR ', ') AS taggroup FROM code, code_tags, tags, users WHERE users.id = code.author AND code_tags.code_id = code.id AND tags.id = code_tags.tag_id GROUP BY code_id ORDER BY date DESC LIMIT $start, 15 "; $this->load->view('code/ajaxlist',$data); } elseif ($kind == 2) { // kind is 2 - featured So my jQuery code sends a variable 'kind'. If it's 1, it runs the query for Newest, etc. etc. The PHP code for furnace.howcode.com/code/ajaxlist is: <?php // Our query base // SELECT * FROM code ORDER BY date DESC $query = $this->db->query($query); foreach($query->result() as $row) { ?> <script type="text/javascript"> $('#title-<?php echo $row->codeid;?>').click(function() { var form_data = { id: <?php echo $row->codeid; ?> }; $('#col3').fadeOut('slow', function() { $.ajax({ url: "<?php echo site_url('code/viewajax');?>", type: 'POST', data: form_data, success: function(msg) { $('#col3').html(msg); $('#col3').fadeIn('fast'); } }); }); }); </script> <div class="result"> <div class="resulttext"> <div id="title-<?php echo $row->codeid; ?>" class="title"> <?php echo anchor('#',$row->codetitle); ?> </div> <div class="summary"> <?php echo $row->codesummary; ?> </div>  <?php include($_SERVER['DOCUMENT_ROOT']."/fivestars/5star.php");?> <div class="bottom"> <div class="author"> Submitted by <?php echo anchor('auth/profile/'.$row->authorid,''.$row->authorname);?> </div> <?php // Now we need to take the GROUP_CONCATted tags and split them using the magic of PHP into seperate tags $tagarray = explode(", ", $row->taggroup); foreach ($tagarray as $tag) { ?> <div class="tagbutton" href="#"> <span><?php echo $tag; ?></span> </div> <?php } ?> </div> </div> </div> <?php } echo " ";?> <script type="text/javascript"> var newpage = <?php echo $this->input->post('currentpage') + 15;?>; </script> So that's everything in PHP. The rest you should be able to view with Firebug or by viewing the Source code. I've put all the Tab/clicking/Ajaxloading bits in the tags at the very bottom. There's a comment before it all kicks off. Thanks so much for your help!

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IntellIJ editor doesn't appear

- by neveu

I updated my IntellIJ install to the latest version (11.1.4) and now the Editor window doesn't appear. Double-clicking on the file, jump-to-source, nothing happens. No error message, it just doesn't appear. If I double-click on an xml layout file the preview window works, but no Editor window. Have installed and reinstalled; went back to an earlier version and it doesn't work there either. I'm at a loss. Any ideas? Update: Editor works if I create a new project. Update 2: idea.log file includes this (I don't know what ins.android.sdk.AndroidSdkData is): 2012-11-04 20:40:52,481 [ 2677] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $APP_CONFIG$/macros.xml file is null 2012-11-04 20:40:52,481 [ 2677] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $APP_CONFIG$/macros.xml 2012-11-04 20:40:52,482 [ 2678] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $APP_CONFIG$/quicklists.xml file is null 2012-11-04 20:40:52,482 [ 2678] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $APP_CONFIG$/quicklists.xml 2012-11-04 20:40:52,564 [ 2760] INFO - pl.stores.ApplicationStoreImpl - 76 application components initialized in 1285 ms 2012-11-04 20:40:52,575 [ 2771] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $APP_CONFIG$/customization.xml file is null 2012-11-04 20:40:52,575 [ 2771] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $APP_CONFIG$/customization.xml 2012-11-04 20:40:52,674 [ 2870] INFO - ij.openapi.wm.impl.IdeRootPane - App initialization took 3385 ms 2012-11-04 20:40:53,136 [ 3332] INFO - TestNG Runner - Create TestNG Template Configuration 2012-11-04 20:40:53,138 [ 3334] INFO - TestNG Runner - Create TestNG Template Configuration 2012-11-04 20:40:53,253 [ 3449] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/dynamic.xml file is null 2012-11-04 20:40:53,253 [ 3449] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/dynamic.xml 2012-11-04 20:40:53,280 [ 3476] INFO - api.vfs.impl.local.FileWatcher - 1 paths checked, 0 mapped, 202 mks 2012-11-04 20:40:53,366 [ 3562] INFO - ellij.project.impl.ProjectImpl - 137 project components initialized in 403 ms 2012-11-04 20:40:53,563 [ 3759] INFO - .module.impl.ModuleManagerImpl - 4 modules loaded in 197 ms 2012-11-04 20:40:53,625 [ 3821] INFO - api.vfs.impl.local.FileWatcher - 6 paths checked, 0 mapped, 150 mks 2012-11-04 20:40:54,187 [ 4383] INFO - .roots.impl.DirectoryIndexImpl - Directory index initialized in 271 ms, indexed 1611 directories 2012-11-04 20:40:54,207 [ 4403] INFO - pl.PushedFilePropertiesUpdater - File properties pushed in 18 ms 2012-11-04 20:40:54,237 [ 4433] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $APP_CONFIG$/plainTextFiles.xml file is null 2012-11-04 20:40:54,237 [ 4433] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $APP_CONFIG$/plainTextFiles.xml 2012-11-04 20:40:54,246 [ 4442] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/gant_config.xml file is null 2012-11-04 20:40:54,246 [ 4442] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/gant_config.xml 2012-11-04 20:40:54,253 [ 4449] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/gradle.xml file is null 2012-11-04 20:40:54,253 [ 4449] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/gradle.xml 2012-11-04 20:40:55,855 [ 6051] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/IntelliLang.xml file is null 2012-11-04 20:40:55,855 [ 6051] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/IntelliLang.xml 2012-11-04 20:40:56,995 [ 7191] INFO - leEditor.impl.EditorsSplitters - splitter 2012-11-04 20:40:56,996 [ 7192] INFO - leEditor.impl.EditorsSplitters - splitter 2012-11-04 20:40:57,233 [ 7429] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/codeStyleSettings.xml file is null 2012-11-04 20:40:57,233 [ 7429] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/codeStyleSettings.xml 2012-11-04 20:40:57,234 [ 7430] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/projectCodeStyle.xml file is null 2012-11-04 20:40:57,234 [ 7430] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/projectCodeStyle.xml 2012-11-04 20:40:58,145 [ 8341] INFO - indexing.UnindexedFilesUpdater - Indexable files iterated in 3911 ms 2012-11-04 20:40:58,146 [ 8342] INFO - indexing.UnindexedFilesUpdater - Unindexed files update started: 0 files to update 2012-11-04 20:40:58,146 [ 8342] INFO - indexing.UnindexedFilesUpdater - Unindexed files update done in 0 ms 2012-11-04 20:40:58,362 [ 8558] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/fileColors.xml file is null 2012-11-04 20:40:58,362 [ 8558] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/fileColors.xml 2012-11-04 20:41:00,420 [ 10616] INFO - ins.android.sdk.AndroidSdkData - For input string: "20.0.1" java.lang.NumberFormatException: For input string: "20.0.1" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48) at java.lang.Integer.parseInt(Integer.java:458) at java.lang.Integer.parseInt(Integer.java:499) at org.jetbrains.android.sdk.AndroidSdkData.parsePackageRevision(AndroidSdkData.java:86) at org.jetbrains.android.sdk.AndroidSdkData.<init>(AndroidSdkData.java:73) at org.jetbrains.android.sdk.AndroidSdkData.parse(AndroidSdkData.java:167) at org.jetbrains.android.sdk.AndroidPlatform.parse(AndroidPlatform.java:83) at org.jetbrains.android.sdk.AndroidSdkAdditionalData.getAndroidPlatform(AndroidSdkAdditionalData.java:119) at org.jetbrains.android.facet.AndroidFacet.addResourceFolderToSdkRootsIfNecessary(AndroidFacet.java:532) at org.jetbrains.android.facet.AndroidFacet.access$500(AndroidFacet.java:103) at org.jetbrains.android.facet.AndroidFacet$3.run(AndroidFacet.java:440) at com.intellij.ide.startup.impl.StartupManagerImpl$6.run(StartupManagerImpl.java:230) at com.intellij.ide.startup.impl.StartupManagerImpl.runActivities(StartupManagerImpl.java:203) at com.intellij.ide.startup.impl.StartupManagerImpl.access$100(StartupManagerImpl.java:41) at com.intellij.ide.startup.impl.StartupManagerImpl$4.run(StartupManagerImpl.java:170) at com.intellij.openapi.project.DumbServiceImpl.updateFinished(DumbServiceImpl.java:213) at com.intellij.openapi.project.DumbServiceImpl.access$1000(DumbServiceImpl.java:51) at com.intellij.openapi.project.DumbServiceImpl$IndexUpdateRunnable$1$3.run(DumbServiceImpl.java:363) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:702) at java.awt.EventQueue.access$400(EventQueue.java:82) at java.awt.EventQueue$2.run(EventQueue.java:663) at java.awt.EventQueue$2.run(EventQueue.java:661) at java.security.AccessController.doPrivileged(Native Method) at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87) at java.awt.EventQueue.dispatchEvent(EventQueue.java:672) at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:699) at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:538) at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:420) at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:378) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122) 2012-11-04 20:41:00,459 [ 10655] INFO - ins.android.sdk.AndroidSdkData - For input string: "20.0.1" java.lang.NumberFormatException: For input string: "20.0.1" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48) at java.lang.Integer.parseInt(Integer.java:458) at java.lang.Integer.parseInt(Integer.java:499) at org.jetbrains.android.sdk.AndroidSdkData.parsePackageRevision(AndroidSdkData.java:86) at org.jetbrains.android.sdk.AndroidSdkData.<init>(AndroidSdkData.java:73) at org.jetbrains.android.sdk.AndroidSdkData.parse(AndroidSdkData.java:167) at org.jetbrains.android.sdk.AndroidPlatform.parse(AndroidPlatform.java:83) at org.jetbrains.android.sdk.AndroidSdkAdditionalData.getAndroidPlatform(AndroidSdkAdditionalData.java:119) at org.jetbrains.android.facet.AndroidFacet.addResourceFolderToSdkRootsIfNecessary(AndroidFacet.java:532) at org.jetbrains.android.facet.AndroidFacet.access$500(AndroidFacet.java:103) at org.jetbrains.android.facet.AndroidFacet$3.run(AndroidFacet.java:440) at com.intellij.ide.startup.impl.StartupManagerImpl$6.run(StartupManagerImpl.java:230) at com.intellij.ide.startup.impl.StartupManagerImpl.runActivities(StartupManagerImpl.java:203) at com.intellij.ide.startup.impl.StartupManagerImpl.access$100(StartupManagerImpl.java:41) at com.intellij.ide.startup.impl.StartupManagerImpl$4.run(StartupManagerImpl.java:170) at com.intellij.openapi.project.DumbServiceImpl.updateFinished(DumbServiceImpl.java:213) at com.intellij.openapi.project.DumbServiceImpl.access$1000(DumbServiceImpl.java:51) at com.intellij.openapi.project.DumbServiceImpl$IndexUpdateRunnable$1$3.run(DumbServiceImpl.java:363) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:702) at java.awt.EventQueue.access$400(EventQueue.java:82) at java.awt.EventQueue$2.run(EventQueue.java:663) at java.awt.EventQueue$2.run(EventQueue.java:661) at java.security.AccessController.doPrivileged(Native Method) at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87) at java.awt.EventQueue.dispatchEvent(EventQueue.java:672) at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:699) at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:538) at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:420) at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:378) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122) 2012-11-04 20:41:01,305 [ 11501] INFO - tor.impl.FileEditorManagerImpl - Project opening took 8374 ms 2012-11-04 20:41:01,719 [ 11915] INFO - dom.attrs.AttributeDefinitions - Found tag with unknown parent: AndroidManifest.AndroidManifestCompatibleScreens 2012-11-04 20:41:07,522 [ 17718] INFO - roid.compiler.tools.AndroidApt - [/Users/neveu/Dev/android-sdk-macosx/platform-tools/aapt] [package] [-m] [--non-constant-id] [-J] [/private/var/folders/xb/hg6cdxt51rs8lylmmjw0fk8m0000gp/T/android_apt_autogeneration6157451500950136901tmp] [-M] [/Users/neveu/Dev/magic_android/3rdParty/facebook/AndroidManifest.xml] [-S] [/Users/neveu/Dev/magic_android/3rdParty/facebook/res] [-I] [/Users/neveu/Dev/android-sdk-macosx/platforms/android-14/android.jar] 2012-11-04 20:41:08,706 [ 18902] INFO - roid.compiler.tools.AndroidApt - [/Users/neveu/Dev/android-sdk-macosx/platform-tools/aapt] [package] [-m] [-J] [/private/var/folders/xb/hg6cdxt51rs8lylmmjw0fk8m0000gp/T/android_apt_autogeneration3143184519400737414tmp] [-M] [/Users/neveu/Dev/magic_android/AndroidManifest.xml] [-S] [/Users/neveu/Dev/magic_android/res] [-I] [/Users/neveu/Dev/android-sdk-macosx/platforms/android-15/android.jar] 2012-11-04 20:41:08,763 [ 18959] INFO - roid.compiler.tools.AndroidIdl - [/Users/neveu/Dev/android-sdk-macosx/platform-tools/aidl] [-p/Users/neveu/Dev/android-sdk-macosx/platforms/android-15/framework.aidl] [-I/Users/neveu/Dev/magic_android/magic/src] [-I/Users/neveu/Dev/magic_android/src] [-I/Users/neveu/Dev/magic_android/3rdParty/Tapjoy] [-I/Users/neveu/Dev/magic_android/gen] [/Users/neveu/Dev/magic_android/src/com/android/vending/billing/IMarketBillingService.aidl] [/Users/neveu/Dev/magic_android/gen/com/android/vending/billing/IMarketBillingService.java] 2012-11-04 20:41:14,004 [ 24200] INFO - dom.attrs.AttributeDefinitions - Found tag with unknown parent: AndroidManifest.AndroidManifestCompatibleScreens 2012-11-04 20:41:18,781 [ 28977] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $APP_CONFIG$/cachedDictionary.xml file is null 2012-11-04 20:41:18,782 [ 28978] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $APP_CONFIG$/cachedDictionary.xml

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deadlocks in the innodb status

- by shantanuo

Mysql sever has suddenly become very slow. There are no queries in the slow query log but the innodb status shows something like the following. Does it mean that it is due to innodb deadlock? if Yes, what is the way out? *************************** 1. row *************************** Status: ===================================== 100315 12:55:29 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 5 seconds ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 187532, signal count 188120 Mutex spin waits 0, rounds 61908654, OS waits 33052 RW-shared spins 89241, OS waits 41948; RW-excl spins 5857, OS waits 1557 ------------------------ LATEST DETECTED DEADLOCK ------------------------ 100315 12:43:02 *** (1) TRANSACTION: TRANSACTION 0 56996536, ACTIVE 0 sec, process no 5000, OS thread id 3031395216 starting index read mysql tables in use 1, locked 1 LOCK WAIT 6 lock struct(s), heap size 1024, undo log entries 6 MySQL thread id 994, query id 7699751 localhost application Searching rows for update UPDATE QUERY *** (1) WAITING FOR THIS LOCK TO BE GRANTED: RECORD LOCKS space id 0 page no 4073 n bits 296 index `PRIMARY` of table `dbII/tbl_ticket_block_master` trx id 0 56996536 lock_mode X locks r ec but not gap waiting Record lock, heap no 141 PHYSICAL RECORD: n_fields 23; compact format; info bits 0 0: len 7; hex 33353837393936; asc 3587996;; 1: len 4; hex 800001f4; asc ;; 2: len 1; hex 47; asc G;; 3: len 2; hex 6f6b; asc ok;; 4: le n 6; hex 0000035957fe; asc YW ;; 5: len 7; hex 000000401737c0; asc @ 7 ;; 6: SQL NULL; 7: SQL NULL; 8: SQL NULL; 9: len 3; hex 8fb46e; asc n;; 10: SQL NULL; 11: len 1; hex 30; asc 0;; 12: len 0; hex ; asc ;; 13: SQL NULL; 14: len 1; hex 33; asc 3;; 15: len 4; hex 4b9ceebe ; asc K ;; 16: len 1; hex 30; asc 0;; 17: len 4; hex 80006ae8; asc j ;; 18: len 0; hex ; asc ;; 19: len 0; hex ; asc ;; 20: len 0; hex ; asc ;; 21: len 0; hex ; asc ;; 22: len 0; hex ; asc ;; *** (2) TRANSACTION: TRANSACTION 0 56996527, ACTIVE 0 sec, process no 5000, OS thread id 2961476496 fetching rows, thread declared inside InnoDB 237 mysql tables in use 3, locked 3 121 lock struct(s), heap size 11584, undo log entries 16 MySQL thread id 995, query id 7699729 localhost application Searching rows for update UPDATE QUERY *** (2) HOLDS THE LOCK(S): RECORD LOCKS space id 0 page no 4073 n bits 296 index `PRIMARY` of table `DBII/tbl_ticket_block_master` trx id 0 56996527 lock_mode X Record lock, heap no 1 PHYSICAL RECORD: n_fields 1; compact format; info bits 0 0: len 8; hex 73757072656d756d; asc supremum;; Record lock, heap no 2 PHYSICAL RECORD: n_fields 23; compact format; info bits 0 0: len 7; hex 33353837343631; asc 3587461;; 1: len 4; hex 800001f4; asc ;; 2: len 1; hex 47; asc G;; 3: len 6; hex 497373756564; asc Is sued;; 4: len 6; hex 000003425295; asc BR ;; 5: len 7; hex 8000000464012c; asc d ,;; 6: SQL NULL; 7: len 4; hex 80000058; asc X;; 8: len 1; hex 43; asc C;; 9: len 3; hex 8fb465; asc e;; 10: len 3; hex 8fb46d; asc m;; 11: len 1; hex 30; asc 0;; 12: len 0; hex ; asc ; ; 13: SQL NULL; 14: len 1; hex 33; asc 3;; 15: len 4; hex 4b9b33a2; asc K 3 ;; 16: len 3; hex 756d67; asc umg;; 17: len 4; hex 80006744; asc gD;; 18: len 0; hex ; asc ;; 19: len 0; hex ; asc ;; 20: len 0; hex ; asc ;; 21: len 0; hex ; asc ;; 22: len 0; hex ; asc ;;

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Odd behavior when recursively building a return type for variadic functions

- by Dennis Zickefoose

This is probably going to be a really simple explanation, but I'm going to give as much backstory as possible in case I'm wrong. Advanced apologies for being so verbose. I'm using gcc4.5, and I realize the c++0x support is still somewhat experimental, but I'm going to act on the assumption that there's a non-bug related reason for the behavior I'm seeing. I'm experimenting with variadic function templates. The end goal was to build a cons-list out of std::pair. It wasn't meant to be a custom type, just a string of pair objects. The function that constructs the list would have to be in some way recursive, with the ultimate return value being dependent on the result of the recursive calls. As an added twist, successive parameters are added together before being inserted into the list. So if I pass [1, 2, 3, 4, 5, 6] the end result should be {1+2, {3+4, 5+6}}. My initial attempt was fairly naive. A function, Build, with two overloads. One took two identical parameters and simply returned their sum. The other took two parameters and a parameter pack. The return value was a pair consisting of the sum of the two set parameters, and the recursive call. In retrospect, this was obviously a flawed strategy, because the function isn't declared when I try to figure out its return type, so it has no choice but to resolve to the non-recursive version. That I understand. Where I got confused was the second iteration. I decided to make those functions static members of a template class. The function calls themselves are not parameterized, but instead the entire class is. My assumption was that when the recursive function attempts to generate its return type, it would instantiate a whole new version of the structure with its own static function, and everything would work itself out. The result was: "error: no matching function for call to BuildStruct<double, double, char, char>::Go(const char&, const char&)" The offending code: static auto Go(const Type& t0, const Type& t1, const Types&... rest) -> std::pair<Type, decltype(BuildStruct<Types...>::Go(rest...))> My confusion comes from the fact that the parameters to BuildStruct should always be the same types as the arguments sent to BuildStruct::Go, but in the error code Go is missing the initial two double parameters. What am I missing here? If my initial assumption about how the static functions would be chosen was incorrect, why is it trying to call the wrong function rather than just not finding a function at all? It seems to just be mixing types willy-nilly, and I just can't come up with an explanation as to why. If I add additional parameters to the initial call, it always burrows down to that last step before failing, so presumably the recursion itself is at least partially working. This is in direct contrast to the initial attempt, which always failed to find a function call right away. Ultimately, I've gotten past the problem, with a fairly elegant solution that hardly resembles either of the first two attempts. So I know how to do what I want to do. I'm looking for an explanation for the failure I saw. Full code to follow since I'm sure my verbal description was insufficient. First some boilerplate, if you feel compelled to execute the code and see it for yourself. Then the initial attempt, which failed reasonably, then the second attempt, which did not. #include <iostream> using std::cout; using std::endl; #include <utility> template<typename T1, typename T2> std::ostream& operator <<(std::ostream& str, const std::pair<T1, T2>& p) { return str << "[" << p.first << ", " << p.second << "]"; } //Insert code here int main() { Execute(5, 6, 4.3, 2.2, 'c', 'd'); Execute(5, 6, 4.3, 2.2); Execute(5, 6); return 0; } Non-struct solution: template<typename Type> Type BuildFunction(const Type& t0, const Type& t1) { return t0 + t1; } template<typename Type, typename... Rest> auto BuildFunction(const Type& t0, const Type& t1, const Rest&... rest) -> std::pair<Type, decltype(BuildFunction(rest...))> { return std::pair<Type, decltype(BuildFunction(rest...))> (t0 + t1, BuildFunction(rest...)); } template<typename... Types> void Execute(const Types&... t) { cout << BuildFunction(t...) << endl; } Resulting errors: test.cpp: In function 'void Execute(const Types& ...) [with Types = {int, int, double, double, char, char}]': test.cpp:33:35: instantiated from here test.cpp:28:3: error: no matching function for call to 'BuildFunction(const int&, const int&, const double&, const double&, const char&, const char&)' Struct solution: template<typename... Types> struct BuildStruct; template<typename Type> struct BuildStruct<Type, Type> { static Type Go(const Type& t0, const Type& t1) { return t0 + t1; } }; template<typename Type, typename... Types> struct BuildStruct<Type, Type, Types...> { static auto Go(const Type& t0, const Type& t1, const Types&... rest) -> std::pair<Type, decltype(BuildStruct<Types...>::Go(rest...))> { return std::pair<Type, decltype(BuildStruct<Types...>::Go(rest...))> (t0 + t1, BuildStruct<Types...>::Go(rest...)); } }; template<typename... Types> void Execute(const Types&... t) { cout << BuildStruct<Types...>::Go(t...) << endl; } Resulting errors: test.cpp: In instantiation of 'BuildStruct<int, int, double, double, char, char>': test.cpp:33:3: instantiated from 'void Execute(const Types& ...) [with Types = {int, int, double, double, char, char}]' test.cpp:38:41: instantiated from here test.cpp:24:15: error: no matching function for call to 'BuildStruct<double, double, char, char>::Go(const char&, const char&)' test.cpp:24:15: note: candidate is: static std::pair<Type, decltype (BuildStruct<Types ...>::Go(BuildStruct<Type, Type, Types ...>::Go::rest ...))> BuildStruct<Type, Type, Types ...>::Go(const Type&, const Type&, const Types& ...) [with Type = double, Types = {char, char}, decltype (BuildStruct<Types ...>::Go(BuildStruct<Type, Type, Types ...>::Go::rest ...)) = char] test.cpp: In function 'void Execute(const Types& ...) [with Types = {int, int, double, double, char, char}]': test.cpp:38:41: instantiated from here test.cpp:33:3: error: 'Go' is not a member of 'BuildStruct<int, int, double, double, char, char>'

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php form validation with javascript

- by Jon Hanson

hi guys i need help trying to figure out why the alert box doesnt show up when i run this. im also new at programming. html i due just fine. im currently taking a php class, and the teacher thought it would be fun to have us create a form and validate it. my problem is i am trying to call the function which then would validate it. My problem is its not calling it, and i cant quite figure out why. please help? jons viladating <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> <head> <link rel="stylesheet" href="decor.css" type="text/css"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>jons viladating</title> <script type="text/javascript">  </script> <h1>jons validations test</h1> </head> <body> <div id="rightcolumn"> <img src="hula.gif" align="right"/> </div> <text align="left"> <form name="jon" action="formoutput.php" onsubmit="return showjonsForm()" Method="post"> <fieldset style="width:250px"> <label> first name</label> <input type="text" name="fname" size="15" maxlength="22" onBlur="checkRequired( this,'fname')"/><br /> <label>last name</label> <input type="text" name="lname" size="10" maxlength="22"> <br /> </fieldset> <fieldset style="width:250px"> <label>address</label> <input type="text" name="adrs1" size="10" maxlength="30"><br /> <span class="msg_container" id="adrs2"></span><br /> <label>city</label> <input type="text" name="city" size="10" maxlength="15"><br /> <span class="msg_container" id="city"></span><br /> <label>state</label> <input type="text" name="state" size="10" maxlength="2"><br /> <span class="msg_container" id="state"></span><br /> <label>zip</label> <input type="text" name="zip" size="10" maxlength="5"><br /> </fieldset> <fieldset style="width:250px"> <label>phone</label> <input type="text" name="phone" size="10" maxlength="10"><br /> <div>please input phone number in this format 1234567892 thank you </div> <label>email</label> <input type="text" name="email" size="10" maxlength="22"><br /> <div> password must have 1 number upper case and minimum of 6 charcters</div> <label>password</label> <input type="text" name="pw2" size="10" maxlength="12"><br /> <label>select gender type</label> <select name="sex" size="1" <br /> <option>male</option> <option>female</option> <option>timelord</option> </select> <label>date of birth</label> <input type="text name="dob" size="8" maxlength="8"/> <div> would you like to know know more</div> <label> yes</label> <input type="checkbox" checked="checked" name="check" /> </fieldset> <input type="submit"/></form> </form> <div id="footer"> <img src="laps2.jpg"> <img src="orange.jpg"><img src="ok.jpg"> </div> </body> </html>

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auto focus camera on model

- by bob

I have the following model <MeshGeometry3D x:Key="SphereOR10GR13" Positions="121.4130 33.9882 64.3701 85.0383 102.2932 168.1890 0.0000 0.0000 0.0000 68.8637 96.3488 159.4094 82.9020 105.2468 168.1890 36.2556 196.8622 64.3701 85.0383 138.7499 159.4094 148.6907 0.0000 23.3858 148.6907 260.7480 23.3858 89.4149 143.2779 146.1417 133.5125 17.5473 43.2677 55.2861 66.8433 108.0315 103.1995 66.8433 108.0315 45.2233 183.7492 108.0315 95.7690 82.0510 146.1417 73.5422 138.7499 168.1890 73.5422 102.2932 159.4094 95.7690 82.0510 127.6378 113.5304 183.7492 108.0315 141.4439 9.9759 23.3858 133.5125 17.5473 64.3701 45.2233 50.9146 85.5906 141.4439 238.9917 43.2677 82.9020 105.2468 188.7008 62.2651 82.0510 146.1417 113.5304 50.9146 85.5906 22.8432 220.2245 43.2677 55.2861 167.1189 108.0315 148.6907 260.7480 23.3858 121.4130 196.8622 85.5906 103.1995 167.1189 108.0315 121.4130 33.9882 64.3701 148.6907 0.0000 23.3858 89.4149 96.3488 159.4094 82.9020 135.2862 168.1890 82.9020 105.2468 188.7008 103.1995 66.8433 108.0315 0.0000 260.7480 23.3858 10.2234 238.9917 23.3858 89.4149 96.3488 146.1417 85.0383 138.7499 168.1890 121.4130 196.8622 64.3701 95.7690 153.5077 146.1417 133.5125 17.5473 43.2677 22.8432 220.2245 43.2677 55.2861 66.8433 127.6378 45.2233 50.9146 108.0315 95.7690 153.5077 127.6378 0.0000 260.7480 0.0000 73.5422 102.2932 168.1890 113.5304 183.7492 85.5906 62.2651 82.0510 146.1417 113.5304 50.9146 108.0315 85.0383 138.7499 168.1890 68.8637 143.2779 159.4094 55.2861 167.1189 108.0315 133.5125 220.2245 43.2677 133.5125 220.2245 64.3701 22.8432 220.2245 64.3701 89.4149 143.2779 159.4094 148.6907 0.0000 23.3858 62.2651 82.0510 127.6378 10.2234 9.9759 43.2677 77.1146 105.2468 168.1890 82.9020 135.2862 168.1890 73.5422 138.7499 159.4094 10.2234 9.9759 23.3858 62.2651 153.5077 146.1417 36.2556 33.9882 85.5906 133.5125 220.2245 64.3701 85.0383 102.2932 168.1890 22.8432 220.2245 43.2677 113.5304 183.7492 108.0315 36.2556 33.9882 85.5906 22.8432 17.5473 43.2677 141.4439 238.9917 43.2677 36.2556 196.8622 64.3701 82.9020 135.2862 168.1890 45.2233 183.7492 108.0315 148.6907 260.7480 0.0000 0.0000 0.0000 23.3858 73.5422 102.2932 159.4094 82.9020 105.2468 188.7008 55.2861 66.8433 127.6378 103.1995 66.8433 127.6378 22.8432 220.2245 64.3701 36.2556 33.9882 64.3701 77.1146 105.2468 188.7008 62.2651 153.5077 127.6378 0.0000 260.7480 0.0000 22.8432 17.5473 64.3701 10.2234 238.9917 43.2677 55.2861 66.8433 108.0315 103.1995 66.8433 108.0315 73.5422 102.2932 159.4094 77.1146 105.2468 188.7008 85.0383 138.7499 159.4094 45.2233 50.9146 85.5906 133.5125 17.5473 43.2677 0.0000 0.0000 23.3858 89.4149 143.2779 146.1417 103.1995 66.8433 127.6378 22.8432 17.5473 43.2677 85.0383 102.2932 168.1890 55.2861 167.1189 127.6378 22.8432 220.2245 64.3701 68.8637 96.3488 146.1417 103.1995 167.1189 127.6378 148.6907 260.7480 23.3858 95.7690 153.5077 146.1417 133.5125 220.2245 43.2677 62.2651 82.0510 127.6378 77.1146 135.2862 188.7008 10.2234 238.9917 43.2677 141.4439 238.9917 23.3858 82.9020 105.2468 168.1890 89.4149 96.3488 159.4094 45.2233 183.7492 85.5906 73.5422 102.2932 168.1890 85.0383 102.2932 159.4094 121.4130 33.9882 85.5906 55.2861 167.1189 127.6378 77.1146 135.2862 188.7008 95.7690 153.5077 146.1417 121.4130 33.9882 85.5906 141.4439 238.9917 23.3858 133.5125 17.5473 64.3701 10.2234 9.9759 43.2677 45.2233 50.9146 108.0315 133.5125 220.2245 64.3701 89.4149 96.3488 146.1417 113.5304 50.9146 108.0315 121.4130 196.8622 64.3701 95.7690 153.5077 127.6378 133.5125 17.5473 64.3701 82.9020 105.2468 168.1890 73.5422 138.7499 159.4094 62.2651 153.5077 146.1417 89.4149 143.2779 146.1417 68.8637 143.2779 146.1417 121.4130 33.9882 64.3701 103.1995 167.1189 108.0315 141.4439 9.9759 43.2677 141.4439 9.9759 23.3858 95.7690 82.0510 146.1417 36.2556 33.9882 85.5906 77.1146 135.2862 168.1890 10.2234 238.9917 43.2677 77.1146 105.2468 188.7008 10.2234 9.9759 43.2677 62.2651 153.5077 127.6378 85.0383 102.2932 159.4094 113.5304 50.9146 85.5906 113.5304 183.7492 108.0315 55.2861 66.8433 127.6378 103.1995 66.8433 127.6378 36.2556 33.9882 64.3701 10.2234 9.9759 23.3858 36.2556 196.8622 85.5906 0.0000 260.7480 23.3858 82.9020 135.2862 188.7008 22.8432 17.5473 43.2677 62.2651 153.5077 146.1417 68.8637 96.3488 159.4094 148.6907 260.7480 0.0000 73.5422 138.7499 168.1890 85.0383 138.7499 168.1890 68.8637 96.3488 146.1417 121.4130 196.8622 85.5906 68.8637 143.2779 146.1417 141.4439 238.9917 23.3858 89.4149 143.2779 159.4094 22.8432 17.5473 64.3701 73.5422 138.7499 168.1890 45.2233 183.7492 85.5906 77.1146 105.2468 168.1890 68.8637 96.3488 146.1417 148.6907 260.7480 0.0000 141.4439 9.9759 43.2677 0.0000 260.7480 23.3858 113.5304 183.7492 85.5906 148.6907 0.0000 0.0000 55.2861 167.1189 108.0315 22.8432 17.5473 64.3701 121.4130 196.8622 64.3701 103.1995 167.1189 108.0315 10.2234 238.9917 23.3858 68.8637 143.2779 159.4094 36.2556 196.8622 85.5906 45.2233 50.9146 108.0315 77.1146 105.2468 168.1890 0.0000 260.7480 0.0000 141.4439 238.9917 43.2677 95.7690 153.5077 127.6378 95.7690 82.0510 146.1417 95.7690 82.0510 127.6378 103.1995 167.1189 127.6378 77.1146 135.2862 168.1890 36.2556 196.8622 64.3701 45.2233 183.7492 108.0315 89.4149 96.3488 159.4094 82.9020 135.2862 188.7008 121.4130 196.8622 85.5906 89.4149 143.2779 159.4094 77.1146 135.2862 168.1890 148.6907 0.0000 0.0000 45.2233 50.9146 85.5906 62.2651 153.5077 127.6378 85.0383 138.7499 159.4094 10.2234 9.9759 23.3858 141.4439 9.9759 43.2677 77.1146 135.2862 188.7008 85.0383 102.2932 159.4094 73.5422 138.7499 159.4094 95.7690 82.0510 127.6378 113.5304 50.9146 85.5906 133.5125 220.2245 43.2677 73.5422 102.2932 168.1890 141.4439 9.9759 23.3858 82.9020 135.2862 188.7008 121.4130 33.9882 85.5906 62.2651 82.0510 146.1417 62.2651 82.0510 127.6378 148.6907 0.0000 0.0000 55.2861 66.8433 108.0315 89.4149 96.3488 146.1417 55.2861 167.1189 127.6378 68.8637 143.2779 146.1417 10.2234 238.9917 23.3858 45.2233 183.7492 85.5906 68.8637 96.3488 159.4094 36.2556 33.9882 64.3701 113.5304 183.7492 85.5906 103.1995 167.1189 127.6378 36.2556 196.8622 85.5906 113.5304 50.9146 108.0315 68.8637 143.2779 159.4094 " TextureCoordinates="33.9882 64.3701 85.0383 102.2932 0.0000 0.0000 -96.3488 159.4094 82.9020 105.2468 -36.2556 64.3701 85.0383 138.7499 148.6907 0.0000 260.7480 23.3858 89.4149 143.2779 17.5473 43.2677 55.2861 66.8433 103.1995 66.8433 -45.2233 108.0315 95.7690 82.0510 -138.7499 168.1890 73.5422 159.4094 95.7690 127.6378 -113.5304 108.0315 9.9759 23.3858 17.5473 64.3701 45.2233 85.5906 238.9917 43.2677 82.9020 188.7008 -82.0510 146.1417 50.9146 85.5906 22.8432 220.2245 55.2861 167.1189 -148.6907 23.3858 -121.4130 85.5906 103.1995 167.1189 121.4130 33.9882 148.6907 23.3858 89.4149 96.3488 135.2862 168.1890 105.2468 188.7008 66.8433 108.0315 0.0000 23.3858 10.2234 238.9917 89.4149 146.1417 85.0383 138.7499 -121.4130 64.3701 -95.7690 146.1417 133.5125 17.5473 -220.2245 43.2677 -66.8433 127.6378 -50.9146 108.0315 95.7690 153.5077 -260.7480 0.0000 -102.2932 168.1890 183.7492 85.5906 62.2651 82.0510 113.5304 50.9146 -85.0383 168.1890 -68.8637 159.4094 -55.2861 108.0315 220.2245 43.2677 133.5125 220.2245 -220.2245 64.3701 89.4149 143.2779 0.0000 23.3858 62.2651 127.6378 10.2234 43.2677 77.1146 105.2468 -82.9020 168.1890 -138.7499 159.4094 10.2234 9.9759 -153.5077 146.1417 36.2556 33.9882 220.2245 64.3701 102.2932 168.1890 -22.8432 43.2677 113.5304 183.7492 36.2556 85.5906 -17.5473 43.2677 -141.4439 43.2677 36.2556 196.8622 82.9020 135.2862 -183.7492 108.0315 -148.6907 260.7480 0.0000 0.0000 73.5422 102.2932 82.9020 105.2468 55.2861 66.8433 103.1995 66.8433 -22.8432 64.3701 36.2556 64.3701 77.1146 188.7008 62.2651 153.5077 0.0000 260.7480 -17.5473 64.3701 -238.9917 43.2677 55.2861 108.0315 103.1995 108.0315 -102.2932 159.4094 -105.2468 188.7008 -85.0383 159.4094 45.2233 50.9146 133.5125 43.2677 0.0000 23.3858 143.2779 146.1417 66.8433 127.6378 22.8432 17.5473 85.0383 168.1890 55.2861 167.1189 22.8432 220.2245 68.8637 96.3488 103.1995 167.1189 148.6907 260.7480 153.5077 146.1417 -133.5125 43.2677 -82.0510 127.6378 -77.1146 188.7008 10.2234 238.9917 141.4439 238.9917 82.9020 168.1890 89.4149 159.4094 45.2233 183.7492 73.5422 102.2932 102.2932 159.4094 121.4130 33.9882 -55.2861 127.6378 -135.2862 188.7008 95.7690 153.5077 121.4130 85.5906 238.9917 23.3858 133.5125 64.3701 -9.9759 43.2677 45.2233 108.0315 -133.5125 64.3701 96.3488 146.1417 50.9146 108.0315 121.4130 196.8622 -95.7690 127.6378 133.5125 17.5473 105.2468 168.1890 73.5422 138.7499 -62.2651 146.1417 -89.4149 146.1417 68.8637 143.2779 121.4130 64.3701 -103.1995 108.0315 141.4439 43.2677 141.4439 9.9759 82.0510 146.1417 -33.9882 85.5906 77.1146 135.2862 -10.2234 43.2677 77.1146 105.2468 10.2234 9.9759 -153.5077 127.6378 85.0383 159.4094 113.5304 85.5906 183.7492 108.0315 55.2861 127.6378 103.1995 127.6378 -33.9882 64.3701 10.2234 23.3858 36.2556 196.8622 -260.7480 23.3858 82.9020 135.2862 22.8432 43.2677 62.2651 153.5077 68.8637 96.3488 260.7480 0.0000 73.5422 138.7499 138.7499 168.1890 68.8637 146.1417 196.8622 85.5906 -143.2779 146.1417 -141.4439 23.3858 143.2779 159.4094 22.8432 64.3701 -73.5422 168.1890 -45.2233 85.5906 77.1146 168.1890 -96.3488 146.1417 -148.6907 0.0000 9.9759 43.2677 0.0000 260.7480 -113.5304 85.5906 148.6907 0.0000 -167.1189 108.0315 22.8432 17.5473 196.8622 64.3701 167.1189 108.0315 -238.9917 23.3858 68.8637 143.2779 -196.8622 85.5906 45.2233 50.9146 -105.2468 168.1890 0.0000 0.0000 141.4439 238.9917 153.5077 127.6378 95.7690 146.1417 95.7690 82.0510 -103.1995 127.6378 -77.1146 168.1890 -196.8622 64.3701 45.2233 183.7492 96.3488 159.4094 135.2862 188.7008 121.4130 196.8622 -89.4149 159.4094 -135.2862 168.1890 0.0000 0.0000 -50.9146 85.5906 -62.2651 127.6378 138.7499 159.4094 -9.9759 23.3858 141.4439 9.9759 77.1146 135.2862 85.0383 102.2932 -73.5422 159.4094 82.0510 127.6378 113.5304 50.9146 133.5125 220.2245 73.5422 168.1890 141.4439 23.3858 -82.9020 188.7008 33.9882 85.5906 62.2651 146.1417 62.2651 82.0510 -148.6907 0.0000 -66.8433 108.0315 89.4149 96.3488 -167.1189 127.6378 -68.8637 146.1417 -10.2234 23.3858 -183.7492 85.5906 68.8637 159.4094 36.2556 33.9882 113.5304 183.7492 167.1189 127.6378 -36.2556 85.5906 113.5304 108.0315 -143.2779 159.4094 " TriangleIndices="79 2 89 2 79 223 80 66 179 66 80 7 66 7 143 143 7 114 179 38 108 38 179 66 108 38 114 108 114 7 32 2 181 2 32 99 159 2 99 2 159 48 37 177 191 177 37 28 164 60 205 60 164 8 149 102 113 102 149 210 102 210 43 43 210 216 113 26 192 26 113 102 192 26 216 192 216 210 91 209 127 209 91 186 142 157 218 157 142 62 125 178 19 178 125 22 147 170 228 170 147 75 183 231 105 231 183 134 231 134 31 31 134 132 105 76 57 76 105 231 57 76 132 57 132 134 58 74 90 74 58 44 126 161 98 161 126 172 56 20 10 20 56 69 85 110 71 110 85 129 68 97 158 97 68 120 97 120 215 215 120 232 158 117 202 117 158 97 202 117 232 202 232 120 184 220 0 220 184 168 234 41 5 41 234 29 188 156 145 156 188 198 124 86 140 86 124 73 189 11 199 11 189 52 11 52 12 12 52 30 199 27 72 27 199 11 72 27 30 72 30 52 235 21 152 21 235 128 50 131 25 131 50 153 13 180 174 180 13 18 78 206 46 206 78 229 83 222 104 222 83 84 222 84 195 195 84 47 104 88 107 88 104 222 107 88 47 107 47 84 155 92 93 92 155 154 185 101 36 101 185 233 121 141 55 141 121 196 226 224 45 224 226 182 51 106 162 106 51 14 106 14 225 225 14 9 162 139 123 139 162 106 123 139 9 123 9 14 194 61 17 61 194 221 193 144 214 144 193 109 137 133 207 133 137 42 67 111 24 111 67 150 163 81 187 81 163 33 81 33 212 212 33 6 187 136 59 136 187 81 59 136 6 59 6 33 236 176 3 176 236 169 116 167 39 167 116 230 100 200 130 200 100 171 54 138 227 138 54 203 118 63 165 63 118 1 63 1 4 4 1 77 165 146 40 146 165 63 40 146 77 40 77 1 173 96 213 96 173 53 15 94 49 94 15 65 103 16 151 16 103 217 208 70 119 70 208 166 82 211 148 211 82 160 23 175 115 175 23 87 34 35 135 35 34 201 112 64 197 64 112 219 122 190 95 190 122 204 " /> My grid size is MaxHeight="1000" MaxWidth="1000" How can I make the camera in the viewport3d show all the model something like fit view? Thank you

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Memory limit for running external executables within Asp.net

- by itsbalur

I am using WkhtmltoPdf in my C# web application running in .NET 4.0 to generate PDFs from HTML files. In general everything works fine except when the size of the HTML file is below 250KB. Once the HTML file size increases beyond that, the process which runs the wkhtmltopdf.exe gives an exception as below. On the Task Manager, I have seen that the Memory value for the wkhtmltopdf.exe process does not increase beyond a value of 40,096 K, which I believe is the reason why the process is abandoned in between. How can we configure such that the memory limit for external exes can be increased? Is there any other way of solving this issue? More info: When I run the conversion from the command line directly, the PDF is generated fine. So, its unlikely to be a problem with WkhtmlToPdf. The error is from localhost. I have tried the same on the DEV server, with the same result. Exception: > [Exception: Loading pages (1/6) [> > ] 0% [======> ] > 10% [======> ] 11% > [=======> ] 13% > [=========> ] 15% > [==========> ] 18% > [============> ] 20% > [=============> ] 22% > [==============> ] 24% > [===============> ] 26% > [=================> ] 29% > [==================> ] 31% > [===================> ] 33% > [=====================> ] 35% > [======================> ] 37% > [========================> ] 40% > [=========================> ] 42% > [==========================> ] 44% > [============================> ] 47% > [=============================> ] 49% > [==============================> ] 51% > [============================================================] 100% > Counting pages (2/6) > [============================================================] Object > 1 of 1 Resolving links (4/6) > [============================================================] Object > 1 of 1 Loading headers and footers (5/6) > Printing pages (6/6) [> > ] Preparing [=> > ] Page 1 of 49 [==> > ] Page 2 of 49 [===> > ] Page 3 of 49 [====> > ] Page 4 of 49 [======> > ] Page 5 of 49 [=======> > ] Page 6 of 49 [========> > ] Page 7 of 49 [=========> > ] Page 8 of 49 [==========> > ] Page 9 of 49 [============> > ] Page 10 of 49 [=============> > ] Page 11 of 49 [==============> > ] Page 12 of 49 [===============> > ] Page 13 of 49 [================> > ] Page 14 of 49 [==================> > ] Page 15 of 49 [===================> > ] Page 16 of 49 [====================> > ] Page 17 of 49 [=====================> > ] Page 18 of 49 [======================> > ] Page 19 of 49 [========================> > ] Page 20 of 49 [=========================> > ] Page 21 of 49 [==========================> > ] Page 22 of 49 [===========================> > ] Page 23 of 49 [============================> > ] Page 24 of 49 [==============================> > ] Page 25 of 49 [===============================> > ] Page 26 of 49 [=================================> > ] Page 27 of 49 [==================================> > ] Code that I use: var fileName = " - "; var wkhtmlDir = ConfigurationManager.AppSettings[Constants.AppSettings.ExportToPdfExecutablePath]; var wkhtml = ConfigurationManager.AppSettings[Constants.AppSettings.ExportToPdfExecutablePath] + "\\wkhtmltopdf.exe"; var p = new Process(); string switches = ""; switches += "--print-media-type "; switches += "--margin-top 10mm --margin-bottom 10mm --margin-right 5mm --margin-left 5mm "; switches += "--page-size A4 "; switches += "--disable-smart-shrinking "; var startInfo = new ProcessStartInfo { CreateNoWindow = true, FileName = wkhtml, Arguments = switches + " " + url + " " + fileName, UseShellExecute = false, RedirectStandardOutput = true, RedirectStandardError = true, RedirectStandardInput=true, WorkingDirectory=wkhtmlDir }; p.StartInfo = startInfo; p.Start();

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segmentation fault using BaseCode encryption

- by Natasha Thapa

i took the code from the links below to encrypt and decrypt a text but i get segmentation fault when trying to run this any ideas?? http://etutorials.org/Programming/secure+programming/Chapter+4.+Symmetric+Cryptography+Fundamentals/4.5+Performing+Base64+Encoding/ http://etutorials.org/Programming/secure+programming/Chapter+4.+Symmetric+Cryptography+Fundamentals/4.6+Performing+Base64+Decoding/ #include <stdlib.h> #include <string.h> #include <stdio.h> static char b64revtb[256] = { -3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*0-15*/ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*16-31*/ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, /*32-47*/ 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -2, -1, -1, /*48-63*/ -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, /*64-79*/ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, /*80-95*/ -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, /*96-111*/ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1, /*112-127*/ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*128-143*/ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*144-159*/ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*160-175*/ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*176-191*/ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*192-207*/ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*208-223*/ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*224-239*/ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /*240-255*/ }; unsigned char *spc_base64_encode( unsigned char *input , size_t len , int wrap ) ; unsigned char *spc_base64_decode(unsigned char *buf, size_t *len, int strict, int *err); static unsigned int raw_base64_decode(unsigned char *in, unsigned char *out, int strict, int *err); unsigned char *tmbuf = NULL; static char tmpbuffer[] ={0}; int main(void) { memset( tmpbuffer, NULL, sizeof( tmpbuffer ) ); sprintf( tmpbuffer, "%s:%s" , "username", "password" ); tmbuf = spc_base64_encode( (unsigned char *)tmpbuffer , strlen( tmpbuffer ), 0 ); printf(" The text %s has been encrytped to %s \n", tmpbuffer, tmbuf ); unsigned char *decrypt = NULL; int strict; int *err; decrypt = spc_base64_decode( tmbuf , strlen( tmbuf ), 0, err ); printf(" The text %s has been decrytped to %s \n", tmbuf , decrypt); } static char b64table[64] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" "abcdefghijklmnopqrstuvwxyz" "0123456789+/"; /* Accepts a binary buffer with an associated size. * Returns a base64 encoded, NULL-terminated string. */ unsigned char *spc_base64_encode(unsigned char *input, size_t len, int wrap) { unsigned char *output, *p; size_t i = 0, mod = len % 3, toalloc; toalloc = (len / 3) * 4 + (3 - mod) % 3 + 1; if (wrap) { toalloc += len / 57; if (len % 57) toalloc++; } p = output = (unsigned char *)malloc(((len / 3) + (mod ? 1 : 0)) * 4 + 1); if (!p) return 0; while (i < len - mod) { *p++ = b64table[input[i++] >> 2]; *p++ = b64table[((input[i - 1] << 4) | (input[i] >> 4)) & 0x3f]; *p++ = b64table[((input[i] << 2) | (input[i + 1] >> 6)) & 0x3f]; *p++ = b64table[input[i + 1] & 0x3f]; i += 2; if (wrap && !(i % 57)) *p++ = '\n'; } if (!mod) { if (wrap && i % 57) *p++ = '\n'; *p = 0; return output; } else { *p++ = b64table[input[i++] >> 2]; *p++ = b64table[((input[i - 1] << 4) | (input[i] >> 4)) & 0x3f]; if (mod = = 1) { *p++ = '='; *p++ = '='; if (wrap) *p++ = '\n'; *p = 0; return output; } else { *p++ = b64table[(input[i] << 2) & 0x3f]; *p++ = '='; if (wrap) *p++ = '\n'; *p = 0; return output; } } } static unsigned int raw_base64_decode(unsigned char *in, unsigned char *out, int strict, int *err) { unsigned int result = 0, x; unsigned char buf[3], *p = in, pad = 0; *err = 0; while (!pad) { switch ((x = b64revtb[*p++])) { case -3: /* NULL TERMINATOR */ if (((p - 1) - in) % 4) *err = 1; return result; case -2: /* PADDING CHARACTER. INVALID HERE */ if (((p - 1) - in) % 4 < 2) { *err = 1; return result; } else if (((p - 1) - in) % 4 == 2) { /* Make sure there's appropriate padding */ if (*p != '=') { *err = 1; return result; } buf[2] = 0; pad = 2; result++; break; } else { pad = 1; result += 2; break; } case -1: if (strict) { *err = 2; return result; } break; default: switch (((p - 1) - in) % 4) { case 0: buf[0] = x << 2; break; case 1: buf[0] |= (x >> 4); buf[1] = x << 4; break; case 2: buf[1] |= (x >> 2); buf[2] = x << 6; break; case 3: buf[2] |= x; result += 3; for (x = 0; x < 3 - pad; x++) *out++ = buf[x]; break; } break; } } for (x = 0; x < 3 - pad; x++) *out++ = buf[x]; return result; } /* If err is non-zero on exit, then there was an incorrect padding error. We * allocate enough space for all circumstances, but when there is padding, or * there are characters outside the character set in the string (which we are * supposed to ignore), then we end up allocating too much space. You can * realloc() to the correct length if you wish. */ unsigned char *spc_base64_decode(unsigned char *buf, size_t *len, int strict, int *err) { unsigned char *outbuf; outbuf = (unsigned char *)malloc(3 * (strlen(buf) / 4 + 1)); if (!outbuf) { *err = -3; *len = 0; return 0; } *len = raw_base64_decode(buf, outbuf, strict, err); if (*err) { free(outbuf); *len = 0; outbuf = 0; } return outbuf; }

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interactive login on cgi script

- by raindrop18

I am new for perl-cgi script. and my objective is to create user/pass interactive script to log and get information from multiple device at once. instead of add the user/pass credential on the script itself. since i am new if some one show me how to write the interactive part of the script. thanks much!!! here is the current code usr/local/bin/perl -wl use CGI ':standard'; use Net::Telnet::Cisco; ### set the error fields to nulls $selerror = ""; ### Input from the screen - make sure data was input if (param() and param('Switches') ne "" and (param('Mac') ne "" or param('Interface Description') ne "" or param('VLAN') ne "" )) { ### Put the input devices into an array. @devices = param('Switches'); ### format the header data print header(); print start_html(-title=>"ShowSwitches",-BGCOLOR=>'aqua'); print "\n",h1("<CENTER>Show Switches</CENTER>"); print "\n",hr(),"\n"; ### Go thru the device array. foreach(@devices) { $error_msg = ""; $TAC_login_error = ""; $open_error = ""; $retry_open_error = ""; $prompt_error = ""; $password_error = ""; ### Take input host and use to send to Telnet $host = $_; $session = Net::Telnet::Cisco->new(Errmode => 'return', Timeout => 30); ### Connect to the host $session->open(Host =>"$host", Timeout => 15); $open_error = $session->errmsg; ### Login with TACACS if host can be connected to if ($open_error eq "") { $session->login('USER', 'PASS'); $TAC_login_error = $session->errmsg; ### Login with TACACS failed - try standard login if ($TAC_login_error ne "") { ### Connect to host $session->open(Host =>"$host", Timeout => 15); $retry_open_error = $session->errmsg; ### Wait for password prompt - multiple matches - devices may have different device prompts. if ($retry_open_error eq "") { $session->waitfor(Match => '/Password:.*$/', Match => '/Enter password:.*$/', Timeout => 20); $prompt_error = $session->errmsg; if ($prompt_error eq "") { ### Input password $session->print('getmeout'); $password_error = $session->errmsg; $session->waitfor('/.*>$/'); $password_error = $session->errmsg; } } } } ### No errors, then issue "show commands". if ($open_error eq "" and ($TAC_login_error eq "" or $retry_open_error eq "") and $prompt_error eq "" and $password_error eq "") { ### Show Mac if (param('Mac')) { $cmd = 'sh mac'; @output = $session->cmd("$cmd"); $show_error = ""; $show_error = $session->errmsg; print "\n",h2($host . ' - ' . $cmd); if ($show_error ne "") { $error_msg = 'Error for show mac - ' . $show_error; print b($error_msg),(br); print hr(),"\n"; $error_msg = ''; } else { print pre(@output); print hr(),"\n"; } } ### Show Interface Description if (param('Interface Description')) { $cmd = 'sh interface description'; @output = $session->cmd("$cmd"); $show_error = ""; $show_error = $session->errmsg; print "\n",h2($host . ' - ' . $cmd); if ($show_error ne "") { $error_msg = 'Error for show mac - ' . $show_error; print b($error_msg),(br); print hr(),"\n"; $error_msg = ''; } else { print pre(@output); print hr(),"\n"; } } ### Show VLAN if (param('VLAN')) { $cmd = 'sh vlan'; @output = $session->cmd("$cmd"); $show_error = ""; $show_error = $session->errmsg; print "\n",h2($host . ' - ' . $cmd); if ($show_error ne "") { $error_msg = 'Error for show vlan - ' . $show_error; print b($error_msg),(br); print hr(),"\n"; $error_msg = ''; } else { print pre(@output); print hr(),"\n"; } } } elsif ($TAC_login_error ne "" and $password_error ne "") { $error_msg = "Error - $host " . $TAC_login_error . ' - possible incorrect TACACS or standard password parameters on device.'; } elsif ($open_error ne "") { $error_msg = "Error - $host " . $open_error . ' - cannot connect to host - is it down??'; } elsif ($prompt_error ne "") { $error_msg = "Error - $host " . $prompt_error . ' - password prompt not recognized - invalid TACACS (or user) password.'; } elsif ($password_error ne "") { $error_msg = "Error - $host " . $password_error . ' - possible incorrect user/password parameters on device.'; } if ($error_msg ne "" ) { print b($error_msg),(br); print hr(),"\n"; } print hr(),"\n"; print end_html(),"\n"; } } else { ### No Show command was selected. if (param('Submit') and param('Mac') eq "" and param('Interface Description') eq "" and param('VLAN') eq "" ) { $selerror = 'No Show Displays were selected. Try again please!!'; } elsif ### No switch was selected. (param('Submit') and param('Switches') eq "") { $selerror = 'No devices were selected. Try again please!!'; } ### This formats the initial Show Web page. print header(-Pragma='no-cache'), start_html(-title=>"Show Displays",-BGCOLOR=>'aqua'), h1("<CENTER>Show Switches</CENTER>"),hr(), start_form(), b("Select Show Commands:"), br(), br(), checkbox(-name=>'Mac'), checkbox(-name=>'Interface Description'), checkbox(-name=>'VLAN'), br(),br(),hr(),br(), b("Select One or More Devices:"), br(), br(), scrolling_list (-name => 'Switches', -default=> "NONE", -values => ['cs6a', 'cs7a', 'cs7b', 'cs8b', 'cs9a', 'c9b', 'csa' ], -multiple => 'true', -size => 7, ), p(submit('Submit'),reset('Reset')), b($selerror), end_form(),hr(), end_html(); } #

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form_dropdown in codeigniter

- by Patrick

I'm getting a strange behaviour from form_dropdown - basically, when I reload the page after validation, the values are screwed up. this bit generates 3 drop downs with days, months and years: $days = array(0 => 'Day...'); for ($i = 1; $i <= 31; $i++) { $days[] = $i; } $months = array(0 => 'Month...', ); for ($i = 1; $i <= 12; $i++) { $months[] = $i; } $years = array(0 => 'Year...'); for ($i = 2010; $i <= 2012; $i++) { $years[$i] = $i; echo "<pre>"; print_r($years); echo "</pre>";//remove this } $selected_day = (isset($selected_day)) ? $selected_day : 0; $selected_month = (isset($selected_month)) ? $selected_month : 0; $selected_year = (isset($selected_year)) ? $selected_year : 0; echo "<p>"; echo form_label('Select date:', 'day', array('class' => 'left')); echo form_dropdown('day', $days, $selected_day, 'class="combosmall"'); echo form_dropdown('month', $months, $selected_month, 'class="combosmall"'); echo form_dropdown('year', $years, $selected_year, 'class="combosmall"'); echo "</p>"; ...and generates this: <p><label for="day" class="left">Select date:</label><select name="day" class="combosmall"> <option value="0" selected="selected">Day...</option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> <option value="6">6</option> <option value="7">7</option> <option value="8">8</option> <option value="9">9</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> <option value="13">13</option> <option value="14">14</option> <option value="15">15</option> <option value="16">16</option> <option value="17">17</option> <option value="18">18</option> <option value="19">19</option> <option value="20">20</option> <option value="21">21</option> <option value="22">22</option> <option value="23">23</option> <option value="24">24</option> <option value="25">25</option> <option value="26">26</option> <option value="27">27</option> <option value="28">28</option> <option value="29">29</option> <option value="30">30</option> <option value="31">31</option> </select><select name="month" class="combosmall"> <option value="0" selected="selected">Month...</option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> <option value="6">6</option> <option value="7">7</option> <option value="8">8</option> <option value="9">9</option> <option value="10">10</option> <option value="11">11</option> <option value="12">12</option> </select><select name="year" class="combosmall"> <option value="0" selected="selected">Year...</option> <option value="2010">2010</option> <option value="2011">2011</option> <option value="2012">2012</option> </select></p> however, when the form is reloaded after validation, the same code above generates this:  <select name="year" class="combosmall"> <option value="0" selected="selected">Year...</option> <option value="1">2010</option> <option value="2">2011</option> <option value="3">2012</option> </select> So basically the value start from 1 instead of 2010. The same happens to days and months but obviously it doesn't make any difference in this particular case as the values would start from 1 anyway. How can I fix this - and why does it happen? edit: validation rules are: $this->load->library('form_validation'); //...rules for other fields.. $this->form_validation->set_rules('day', 'day', 'required|xss_clean'); $this->form_validation->set_rules('month', 'month', 'required|xss_clean'); $this->form_validation->set_rules('year', 'year', 'required|xss_clean'); $this->form_validation->set_error_delimiters('<p class="error">', '</p>'); //define other errors if($this->input->post('day') == 0 || $this->input->post('month') == 0 || $this->input->post('year') == 0) { $data['error'] = "Please check the date of your event."; }

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Updated data is not loaded in the same browser(using Ajax )

- by Mouli

Initilly load some datas into dropdown list. It contain company code and company related fields in Textbox. Using Ajax to load the company related Fields in onchange Function I edit the company related fields and update it. Its updated Successfully then i Click the back button and refresh the browser. I select the updated company form the dropdown list. It always list the old value insted of updated data. I want to show the updated fields into corresponding textbox. This part of coding is to load the companyname into dropdown list <% DBAccess dbAccess = Util.initDatabaseAccess(); ResultSet rs = null; ResultSet rsEdit = null; int updateSuccess = 0; String button = request.getParameter("saveAction"); rs = dbAccess.executeQuery("select companyname,Companycode,companyid from yosemitecompany where cmpstatus=1 order by companyname"); %> My Ajax function <script> function showCompanyDetails(str) { if (str=="") { document.getElementById("CompanyName").innerHTML=""; return; } if (window.XMLHttpRequest) { xmlhttp=new XMLHttpRequest(); } else { xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { var resValue=new Array(); resValue = xmlhttp.responseText.split("$"); document.getElementById("CompanyName").value=resValue[0]; document.getElementById("StreetName1").value=(resValue[1]!=null && !resValue[1].equalsIgnoreCase("null") && resValue[1].length>0?resValue[1]:""); document.getElementById("StreetName2").value=(resValue[2]!=null && !resValue[2].equalsIgnoreCase("null") && resValue[2].length>0?resValue[2]:""); document.getElementById("City").value=(resValue[3]!=null && !resValue[3].equalsIgnoreCase("null") && resValue[3].length>0?resValue[3]:""); document.getElementById("Zipcode").value=trim((resValue[5]!=null && !resValue[5].equalsIgnoreCase("null") && resValue[5].length>0?resValue[5]:"")); document.getElementById("officePhone").value=(resValue[6]!=null && !resValue[6].equalsIgnoreCase("null") && resValue[6].length>0?resValue[6]:""); document.getElementById("Fax1").value=(resValue[7]!=null && !resValue[7].equalsIgnoreCase("null") && resValue[7].length>0?resValue[7]:""); document.getElementById("email").value=(resValue[8]!=null && !resValue[8].equalsIgnoreCase("null") && resValue[8].length>0?resValue[8]:""); document.getElementById("WebSite").value=(resValue[9]!=null && !resValue[9].equalsIgnoreCase("null") && resValue[9].length>0?resValue[9]:""); document.getElementById("description").value=(resValue[10]!=null && !resValue[10].equalsIgnoreCase("null") && resValue[10].length>0?resValue[10]:""); document.getElementById("companycode").value=resValue[11]; document.getElementById("tempCompanyId").value=resValue[12]; document.getElementById("tempStateId").value=resValue[13]; stateID = resValue[13]; countryID = resValue[14]; processAjaxRequestPost('ajaxRequestPost','SingleListHandler','getCountryListDetails', document.getElementById("tempCompanyId").value); showTimezone(resValue[15]); document.getElementById("userName").value=resValue[16]; document.getElementById("passWord").value=resValue[17]; } } xmlhttp.open("GET","customerDetail.jsp?val="+str,true); xmlhttp.send(); } </script> My Update function <%if(updateSuccess <= 0){ if(button != null && button.equalsIgnoreCase("update")) { String companyCode = request.getParameter("companycode").trim(); String companyName = request.getParameter("CompanyName").trim(); String StreetName1 = request.getParameter("StreetName1").trim(); String StreetName2 = request.getParameter("StreetName2").trim(); String City = request.getParameter("City").trim(); String Zipcode = request.getParameter("Zipcode").trim(); String officePhone = request.getParameter("officePhone").trim(); String Fax1 = request.getParameter("Fax1").trim(); String email = request.getParameter("email").trim(); String WebSite = request.getParameter("WebSite").trim(); String description = request.getParameter("description").trim(); String companyid = request.getParameter("tempCompanyId").trim(); String stateId = request.getParameter("tempStateId").trim(); String timeZone = request.getParameter("timezone").trim(); String uploadCustomerLogo = request.getParameter("uploadCustomerLogo").trim(); String userName = request.getParameter("userName").trim(); String passWord = request.getParameter("passWord").trim(); String smtpInsertFlag = "NO"; String getCompanyId = null; updateSuccess = dbAccess.executeUpdate("update yosemitecompany set companyname='"+com.zoniac.util.Util.deQuoteForSingleQuote(companyName)+"', streetname1='"+com.zoniac.util.Util.deQuoteForSingleQuote(StreetName1)+"', streetname2='"+com.zoniac.util.Util.deQuoteForSingleQuote(StreetName2)+"', cityname='"+com.zoniac.util.Util.deQuoteForSingleQuote(City)+"', zipcode='"+com.zoniac.util.Util.deQuoteForSingleQuote(Zipcode)+"', phonenumber1='"+com.zoniac.util.Util.deQuoteForSingleQuote(officePhone)+"', fax1='"+com.zoniac.util.Util.deQuoteForSingleQuote(Fax1)+"', email1='"+com.zoniac.util.Util.deQuoteForSingleQuote(email)+"', website='"+com.zoniac.util.Util.deQuoteForSingleQuote(WebSite)+"', description='"+com.zoniac.util.Util.deQuoteForSingleQuote(description)+"',timezoneid="+timeZone+", stateid="+stateId+" where companyid='"+companyid+"'"); if(rs != null) { rs = null; dbAccess.close(); } } %> My customerDetail.jsp File <% String val = request.getParameter("val"); DBAccess dbAccess = Util.initDatabaseAccess(); ResultSet rs = null; String outputResult = null; String ff = "NO"; rs = dbAccess.executeQuery("select companyname,streetname1,streetname2,cityname,(select statename from state where stateid = (select stateid from yosemitecompany where companyid ="+val+"))as state,zipcode,phonenumber1,fax1,email1,website,description,companycode,companyid,(select stateid from state where stateid = (select stateid from yosemitecompany where companyid ="+val+"))as statecode,(select countryid from country where countryid =(select countryid from state where stateid = (select stateid from yosemitecompany where companyid ="+val+")))as countryid,timezoneid from yosemitecompany where companyid = "+val+""); if(rs.next()){ outputResult = rs.getString(1)+"$"+rs.getString(2)+"$"+rs.getString(3)+"$"+rs.getString(4)+"$"+rs.getString(5)+"$"+rs.getString(6)+"$"+rs.getString(7)+"$"+rs.getString(8)+"$"+rs.getString(9)+"$"+rs.getString(10)+"$"+rs.getString(11)+"$"+rs.getString(12)+"$"+rs.getString(13)+"$"+rs.getString(14)+"$"+rs.getString(15)+"$"+rs.getString(16); } rs = null; rs = dbAccess.executeQuery("select username,password from EMAILAUTHENTICATIONDETAILS where companyid="+val); if(rs.next()){ ff="YES"; outputResult += "$"+rs.getString(1)+"$"+rs.getString(2); } if(ff.equals("NO")){ outputResult += "$$"; } out.println(outputResult); outputResult = null; ff = "NO"; if(rs!=null) { rs = null; dbAccess.close(); } %>

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interactive login on perl cgi script- updated question [closed]

- by raindrop18

I am new for perl-cgi script. and my objective is to create user/pass interactive script to log and get information from multiple device at once. instead of add the user/pass credential on the script itself. since i am new if some one show me how to write the interactive part of the script. thanks much!!! here is the current code usr/local/bin/perl -wl use CGI ':standard'; use Net::Telnet::Cisco; # ### set the error fields to nulls $selerror = ""; # ### Input from the screen - make sure data was input if (param() and param('Switches') ne "" and (param('Mac') ne "" or param('Interface Description') ne "" or param('VLAN') ne "" )) { # ### Put the input devices into an array. @devices = param('Switches'); # ### format the header data print header(); print start_html(-title=>"ShowSwitches",-BGCOLOR=>'aqua'); print "\n",h1("<CENTER>Show Switches</CENTER>"); print "\n",hr(),"\n"; # ### Go thru the device array. foreach(@devices) { $error_msg = ""; $TAC_login_error = ""; $open_error = ""; $retry_open_error = ""; $prompt_error = ""; $password_error = ""; # ### Take input host and use to send to Telnet $host = $_; $session = Net::Telnet::Cisco->new(Errmode => 'return', Timeout => 30); # ### Connect to the host $session->open(Host =>"$host", Timeout => 15); $open_error = $session->errmsg; # ### Login with TACACS if host can be connected to if ($open_error eq "") { $session->login('USER', 'PASS'); $TAC_login_error = $session->errmsg; # ### Login with TACACS failed - try standard login if ($TAC_login_error ne "") { # ### Connect to host $session->open(Host =>"$host", Timeout => 15); $retry_open_error = $session->errmsg; # ### Wait for password prompt - multiple matches - devices may have different device prompts. if ($retry_open_error eq "") { $session->waitfor(Match => '/Password:.*$/', Match => '/Enter password:.*$/', Timeout => 20); $prompt_error = $session->errmsg; if ($prompt_error eq "") { # ### Input password $session->print('getmeout'); $password_error = $session->errmsg; $session->waitfor('/.*>$/'); $password_error = $session->errmsg; } } } } # ### No errors, then issue "show commands". if ($open_error eq "" and ($TAC_login_error eq "" or $retry_open_error eq "") and $prompt_error eq "" and $password_error eq "") { # ### Show Mac if (param('Mac')) { $cmd = 'sh mac'; @output = $session->cmd("$cmd"); $show_error = ""; $show_error = $session->errmsg; print "\n",h2($host . ' - ' . $cmd); if ($show_error ne "") { $error_msg = 'Error for show mac - ' . $show_error; print b($error_msg),(br); print hr(),"\n"; $error_msg = ''; } else { print pre(@output); print hr(),"\n"; } } # ### Show Interface Description if (param('Interface Description')) { $cmd = 'sh interface description'; @output = $session->cmd("$cmd"); $show_error = ""; $show_error = $session->errmsg; print "\n",h2($host . ' - ' . $cmd); if ($show_error ne "") { $error_msg = 'Error for show mac - ' . $show_error; print b($error_msg),(br); print hr(),"\n"; $error_msg = ''; } else { print pre(@output); print hr(),"\n"; } } # ### Show VLAN if (param('VLAN')) { $cmd = 'sh vlan'; @output = $session->cmd("$cmd"); $show_error = ""; $show_error = $session->errmsg; print "\n",h2($host . ' - ' . $cmd); if ($show_error ne "") { $error_msg = 'Error for show vlan - ' . $show_error; print b($error_msg),(br); print hr(),"\n"; $error_msg = ''; } else { print pre(@output); print hr(),"\n"; } } } elsif ($TAC_login_error ne "" and $password_error ne "") { $error_msg = "Error - $host " . $TAC_login_error . ' - possible incorrect TACACS or standard password parameters on device.'; } elsif ($open_error ne "") { $error_msg = "Error - $host " . $open_error . ' - cannot connect to host - is it down??'; } elsif ($prompt_error ne "") { $error_msg = "Error - $host " . $prompt_error . ' - password prompt not recognized - invalid TACACS (or user) password.'; } elsif ($password_error ne "") { $error_msg = "Error - $host " . $password_error . ' - possible incorrect user/password parameters on device.'; } if ($error_msg ne "" ) { print b($error_msg),(br); print hr(),"\n"; } print hr(),"\n"; print end_html(),"\n"; } } else { # ### No Show command was selected. if (param('Submit') and param('Mac') eq "" and param('Interface Description') eq "" and param('VLAN') eq "" ) { $selerror = 'No Show Displays were selected. Try again please!!'; } elsif # ### No switch was selected. (param('Submit') and param('Switches') eq "") { $selerror = 'No devices were selected. Try again please!!'; } # ### This formats the initial Show Web page. print header(-Pragma=>'no-cache'), start_html(-title=>"Show Displays",-BGCOLOR=>'aqua'), h1("<CENTER>Show Switches</CENTER>"),hr(), start_form(), b("Select Show Commands:"), br(), br(), checkbox(-name=>'Mac'), checkbox(-name=>'Interface Description'), checkbox(-name=>'VLAN'), br(),br(),hr(),br(), b("Select One or More Devices:"), br(), br(), scrolling_list (-name => 'Switches', -default=> "NONE", -values => ['cs6a', 'cs7a', 'cs7b', 'cs8b', 'cs9a', 'c9b', 'csa' ], -multiple => 'true', -size => 7, ), p(submit('Submit'),reset('Reset')), b($selerror), end_form(),hr(), end_html(); } #

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log in and send sms with java

- by noobed

I'm trying to log into a site and afterwards to send a SMS (you can do that for free by the site - it's nothing more than just enter some text into some fields and 'submit'). I've used wireshark to track some of the post/get requests that my machine has been exchanging with the server - when using the browser. I'd like to paste some of my Java code: URL url; String urlP = "maccount=myRawUserName7&" + "mpassword=myRawPassword&" + "redirect_http=http&" + "submit=........"; String urlParameters = URLEncoder.encode(urlP, "CP1251"); HttpURLConnection connection = null; // Create connection url = new URL("http://www.mtel.bg/1/mm/smscenter/mc/sendsms/ma/index/mo/1"); connection = (HttpURLConnection) url.openConnection(); connection.setRequestMethod("POST"); //I'm not really sure if these RequestProperties are necessary //so I'll leave them as a comment // connection.setRequestProperty("Content-Type", // "application/x-www-form-urlencoded"); // connection.setRequestProperty("Accept-Charset", "CP1251"); // connection.setRequestProperty("Content-Length", // "" + Integer.toString(urlParameters.getBytes().length)); // connection.setRequestProperty("Content-Language", "en-US"); connection.setUseCaches(false); connection.setDoInput(true); connection.setDoOutput(true); // Send request DataOutputStream wr = new DataOutputStream( connection.getOutputStream()); wr.writeBytes(urlParameters); wr.flush(); wr.close(); String headerName[] = new String[10]; int count = 0; for (int i = 1; (headerName[count] = connection.getHeaderFieldKey(i)) != null; i++) { if (headerName[count].equals("Set-Cookie")) { headerName[count++] = connection.getHeaderField(i); } } //I'm not sure if I have to close the connection here or not if (connection != null) { connection.disconnect(); } //the code above should be the login part //----------------------------------------- //this is copy-pasted from wireshark's info. String smsParam="from=men&" + "sender=0&" + "msisdn=359886737498&" + "tophone=0&" + "smstext=tova+e+proba%21+1.&" + "id=&" + "sendaction=&" + "direction=&" + "msgLen=84"; url = new URL("http://www.mtel.bg/moyat-profil-sms-tsentar_3004/" + "mm/smscenter/mc/sendsms/ma/index"); connection = (HttpURLConnection) url.openConnection(); connection.setRequestMethod("POST"); connection.setRequestProperty("Cookie", headerName[0]); connection.setRequestProperty("Cookie", headerName[1]); //conn urlParameters = URLEncoder.encode(urlP, "CP1251"); connection.setUseCaches(false); connection.setDoInput(true); connection.setDoOutput(true); wr = new DataOutputStream( connection.getOutputStream()); wr.writeBytes(urlParameters); wr.flush(); wr.close(); //I'm not rly sure what exactly to do with this response. // Get Response InputStream is = connection.getInputStream(); BufferedReader rd = new BufferedReader(new InputStreamReader(is, "CP1251")); String line; StringBuffer response = new StringBuffer(); while ((line = rd.readLine()) != null) { response.append(line); response.append('\r'); } rd.close(); System.out.println(response.toString()); if (connection != null) { connection.disconnect(); } so that's my code so far. When I execute it ... I don't receive any text on my phone - so it clearly doesn't work as supposed to. I would appreciate any guidance or remarks. Is my cookie handling wrong? Is my login method wrong? Do I pass the right URLs. Do I encode and send the parameter string correctly? Is there any addition valuable data from these POSTs I should take? P.S. just in any case let me tell you that the username and password is not real. For security reasons I don't want to give valid ones. (I think this is appropriate approach) Here are the POST requests: POST /1/mm/auth/mc/auth/ma/index/mo/1 HTTP/1.1 Host: www.mtel.bg User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0.1 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip, deflate Connection: keep-alive Referer: http://www.mtel.bg/1/mm/smscenter/mc/sendsms/ma/index/mo/1 Cookie: __utma=209782857.541729286.1349267381.1349270269.1349274374.3; __utmc=209782857; __utmz=209782857.1349267381.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __atuvc=28%7C40; PHPSESSID=q0mage2usmv34slcv3dmd6t057; __utmb=209782857.3.10.1349274374 Content-Type: multipart/form-data; boundary=---------------------------151901450223722 Content-Length: 475 -----------------------------151901450223722 Content-Disposition: form-data; name="maccount" myRawUserName -----------------------------151901450223722 Content-Disposition: form-data; name="mpassword" myRawPassword -----------------------------151901450223722 Content-Disposition: form-data; name="redirect_https" http -----------------------------151901450223722 Content-Disposition: form-data; name="submit" ........ -----------------------------151901450223722-- HTTP/1.1 302 Found Server: nginx Date: Wed, 03 Oct 2012 14:26:40 GMT Content-Type: text/html; charset=Utf-8 Connection: close Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Location: /moyat-profil-sms-tsentar_3004/mm/smscenter/mc/sendsms/ma/index Content-Length: 0 The above text is vied with wireshark's follow tcp stream when pressing the log in button. POST /moyat-profil-sms-tsentar_3004/mm/smscenter/mc/sendsms/ma/index HTTP/1.1 *same as the above ones* Referer: http://www.mtel.bg/moyat-profil-sms-tsentar_3004/mm/smscenter/mc/sendsms/ma/index Cookie: __utma=209782857.541729286.1349267381.1349270269.1349274374.3; __utmc=209782857; __utmz=209782857.1349267381.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __atuvc=29%7C40; PHPSESSID=q0mage2usmv34slcv3dmd6t057; __utmb=209782857.4.10.1349274374 Content-Type: application/x-www-form-urlencoded Content-Length: 147 from=men&sender=0&msisdn=35988888888&tophone=0&smstext=this+is+some+FREE+SMS+text%21+100+char+per+sms+only%21&id=&sendaction=&direction=&msgLen=50 HTTP/1.1 302 Found Server: nginx Date: Wed, 03 Oct 2012 14:31:38 GMT Content-Type: text/html; charset=Utf-8 Connection: close Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Location: /moyat-profil-sms-tsentar_3004/mm/smscenter/mc/sendsms/ma/success/s/1 Content-Length: 0 The above text is when you press the send button.

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SOA PARTNER COMMUNITY NEWSLETTER JULY 2012

- by mseika

SOA PARTNER COMMUNITY NEWSLETTER JULY 2012 Dear SOA partner community member To provide our community members the best of our knowledge, we want your feedback on our SOA Partner community. Thus we are organizing SOA Partner Community Survey 2012. We request you to participate in the survey and give your valuable feedback on various areas of marketing, sales and education. To continue our successful BPM Suite, Oracle is launching together with you Process Accelerators initiative. It’s your opportunity to co-develop and market predefined processes. Oracle Fusion Applications Design Patterns are a great tool to develop your SOA or BPM solution or process accelerators. To promote your SOA & BPM Specialization we continue to offer several benefits. This month we would like to highlight our Specialization Plaques - make sure you request one for your office! Our Fusion Middleware Summer Camps are booked out, if could not get a seat you can attend the SOA & BPM track @ Virtual Developer Day: Oracle Fusion Development Oracle demo systems offer´s two new demos: Business Driven Development based on BPM Suite & SOA Lifecycle Management. Jürgen KressOracle SOA & BPM Partner Adoption EMEA NEW CONTENT Community SurveyProcess Accelerators KitPlaques SOA & BPM SpecializedSOA & BPM at Virtual Developer Day News from our Partners & CommunityOverview of SOA Diagnostics in 11.1.1.6 Business driven development(BDD) demo now available! SOA Lifecycle Management Oracle Fusion applications design patterns Updated material by Oracle Connect and Network SOA Blogs SOA on Facebook SOA on LinkedIn SOA on Twitter Mix SOA Forum COMMUNITY SURVEY Like every year we would like to get your feedback in our SOA Partner Community Survey 2012. Make sure that You attend to further develop our community and support our planning! It is key for us to get your feedback to prepare for the next fiscal year. Back to top PROCESS ACCELERATORS KIT Oracle is very interested to co-develop and market with you, our partners, pre-defined processes for BPM Suite.I am very happy to announce a new program called “Oracle BPM Partner Solution Catalog”. This program will provide a one-stop shop for our customers looking for Oracle BPM partner solutions available in the market today.The Oracle BPM Solution Catalog will be hosted on our very popular Oracle Technology Network (OTN). To give you an idea of the scale of customer visibility, OTN today receives over 1Million hits per day from our business and developer community. We would like to invite you to list your Oracle BPM 11g solutions available today.In order to participate in this program, you need to do the following: Fill in the attached slide templates - #3 and #4 for each Oracle BPM 11g solution you would like to list on OTN.Please add links to whitepapers , videos, references to the specific solution in the template slide. We recommend that you create a landing page on your website for these linked artifacts and just point to the same from within the PowerPoint template. This will give you the flexibility to update the information as frequently as needed. If you have the particular solution in production or a reference available, please list them as well. Send the PowerPoint template slides (1 set of slides for each Oracle BPM solution) to [email protected]. In addition to having the opportunity to list your solutions on OTN for Oracle customers, you will have the chance to advertise your new wins/implementations/solutions in an Oracle Sponsored PM Webinar held every quarter. This program is targeted to go live by the end of summer 2012. At this point, we are targeting a soft launch in July end 2012 so send on your BPM solutions information as soon as possible. We would love to have your solution(s) listed in the “Oracle BPM Partner Solution Catalog” at the time of the launch. This will be a live repository so you can keep adding more solutions as they become available. If you have any questions, please feel free to contact us [email protected], Product Strategy Director, Oracle BPM , Phone +1 650.506.5486.Thank you and look forward to hearing from you. Oracle BPM team Process Accelerators Overview.pdf ProcessAcceleratorsDataSheet.pdf Demos draUPK.zip & trmUPK.zip BPM Solution repository slides.ppt Additional BPM material BPM Process Development Lifecycle Document that describes recommended approach to collaborative process modeling across business and IT tools ADF 11g PS5 Application with Customized BPM Worklist Task Flow (MDS Seeded Customization) by Andrejus Baranovskis BPMN process editor problems in 11.1.1.6 by Mark Nelson BPM – Disable DBMS job to refresh B2B Materialized View by Mark Nelson For the complete kit please visit the BPM folder at our SOA Community Workspace (SOA Community membership required). For the complete presentation please visit our SOA Community Workspace (SOA Community membership required). Information is Oracle and Partner confidential! Back to top PLAQUES SOA & BPM SPECIALIZED We continue to offer you a nice SOA & BPM Specialization plaque with your logo to proof your success. If you are a SOA or BPM Specialized partner and would like to request the plaque please send Brigitte an e-mail with the following information: Partner Name Partner logo (preferred eps file) Partner Status gold or platinum Your shipping address Your Specialization: SOA or BPM We recommend to mount the plaque at your office reception in addition you can use the SOA Specialization logos at your website download Logo: Gold & Platinum or the BPM logos Gold & Platinum Back to top SOA & BPM AT VIRTUAL DEVELOPER DAY Register now for this FREE hands-on online workshop Get up to date and learn everything you wanted to know about Oracle ADF & Fusion Development plus live Q&A chats with Oracle technical staffOracle Application Development Framework (ADF) is the standards based, strategic framework for Oracle Fusion Applications and Oracle Fusion Middleware. Oracle ADF’s integration with the Oracle SOA Suite, Oracle WebCenter and Oracle BI creates a complete productive development platform for your custom applications.Join us at this FREE virtual event and learn the latest in Fusion Development including: Is Oracle ADF development faster and simpler than Forms, Apex or .Net? Mobile Application Development with ADF Mobile Oracle ADF development with Eclipse Oracle WebCenter Portal and ADF Development Application Lifecycle Management with ADF Building Process Centric Applications with ADF and BPM Oracle Business Intelligence and ADF Integration Live Q&A chats with Oracle technical staff Developer lead, manager or architect - this event has something for everyone. Don’t miss this opportunity.Tuesday, July 10, 2012. 9:00 a.m. PT -1:00 p.m. PT 11:00 a.m. CT - 3:00 p.m. CT 12:00 p.m. ET - 4:00 p.m. ET 1:00 p.m. BRT - 5:00 p.m. BRT Register online now! for this FREE event. Agenda: 09:00 am Opening 09:30 am Keynote: Oracle Fusion Development Track1Introduction to Fusion Development Track2What's New in Fusion Development Track3Fusion Development in the Enterprise 10:00 am Is Oracle ADF Development Faster and Simpler than Oracle Forms, APEX or .Net? Mobile Application Development with ADF Mobile Oracle WebCenter Portal and ADF Development 11:00 am Rich Web UI made simple - an ADF Faces Overview Oracle Enterprise Pack for Eclipse - ADF Development Building Process Centric Applications with ADF and BPM 12:00 noon Next Generation Controller for JSF Application Lifecycle Management for ADF Oracle Business Intelligence and ADF Integration *Hands On Lab – WebCenter and ADF Lab w/ JDeveloper - Lab materials will be provided ahead of the event to give you ample time to work through the lab and increase the productivity of the live chat sessions the day of the event. Sessions abstractsRegister online now! for this FREE event Read more on Community Events and post your comment here. Back to top NEWS FROM OUR PARTNERS AND COMMUNITY Send your tweets @soacommunity #soacommunity and follow us at http://twitter.com/soacommunity JDeveloper & ADF?Troubleshooting BPMN process editor problems in 11.1.1.6http://dlvr.it/1p0FfS SOA Community?SOA & BPM @ Virtual Developer Day: Oracle Fusion Development - July 10th 2012https://soacommunity.wordpress.com/2012/07/02/soa-bpm-virtual-developer-day- oracle-fusion-developmentjuly-10th-2012/#soacommunity #soa #bom #education orclateamsoa ?A-Team Blog #ateam: BAM design pointers - In working recently with a large Oracle customer on SOA and BAM, I discove.http://ow.ly/1kYqES SOA CommunitySOA Community Newsletter June 2012http://wp.me/p10C8u-qw SOA CommunityBPMN process editor problems in 11.1.1.6 by Mark Nelsonhttp://redstack.wordpress.com/2012/06/27/ bpmn-process-editor-problems-in-11-1-1-6 #soacommunity #bpm OTNArchBeat ?SOA Learning Library: free short, topic-focused training on Oracle SOA & BPM products | @SOACommunity http://pub.vitrue.com/NE1G Andrejus Baranovskis ?ADF 11g PS5 Application with Customized BPM Worklist Task Flow (MDS Seeded Customization)http://fb.me/1coX4r1X1 SOA CommunitySOA Learning Library provides a comprehensive curriculum for the SOA and BPM product suites https://soacommunity.wordpress.com/2012/06/27/soa-learning-library #soacommunity #soa #bpm OTNArchBeat ?A Universal JMX Client for Weblogic - Part 1: Monitoring BPEL Thread Pools in SOA 11g | Stefan Koserhttp://pub.vitrue.com/mQVZ OTNArchBeat ?BPM - Disable DBMS job to refresh B2B Materialized View | Mark Nelson http://pub.vitrue.com/3PR0Oracle SOA ?Learn how Choice Hotels Implements Innovative Google Maps Solution with #OracleSOA http://bit.ly/MTwIJ3 SOA Communitytop Tweets SOA Partner Community - June 2012 Send your tweets @soacommunity #soacommunity https://soacommunity.wordpress.com/2012/06/25/top-tweets-soa-partner-community-june-2012 Torsten Winterberg#OPITZ is pushing Oracle commitment to the next level: New Specializations done: ADF, BPM, WLS, Exadatahttp://bit.ly/KX1WVS ServiceTechSymposium ?Only 8 more days left until Super Early Bird Registration Discount expires! http://www.servicetechsymposium.com OracleBlogsSOA Management in 3 minutes - Video explainerhttp://ow.ly/1kN5pn SOA Community ?SOA, Cloud & Service Technology Symposium 2012 London - Enter Promo Code: Djmxz370https://soacommunity.wordpress.com/2012/06/22/soa-cloud-service-technology-symposium-2012-london #soasymposium #soacommunity #soa Heidi BuelowGreat course! w David Read RT @soacommunity: product management ADF for BPM training 5 seats left https://soacommunity.wordpress.com/2012/06/12/fusion-middleware-summer-campsadvanced-partner-trainings/ #bpm #soacommunity SOA Community ?product management ADF for BPM training 5 seats lefthttps://soacommunity.wordpress.com/2012/06/12/fusion-middleware-summer-campsadvanced-partner-trainings/ #bpm #soacommunity OTNArchBeat ?Oacle Fusion Applications Design Patterns Now Available For Developers | Ultan O'Broinhttp://pub.vitrue.com/UEiF OTNArchBeat ?SOA, Cloud & Service Technology Symposium 2012London - Special Oracle Discounthttp://pub.vitrue.com/8E0J SOA CommunityBecome a facebook fan of soacommunity http://www.facebook.com/soacommunity #soacommunity SOA Community ?SOA Suite HealthCare Integration Architecture https://blogs.oracle.com/SOAForHealthcare/entry/soa_suite_healthcare_integration_architecture #soacommunity #soa Andrejus Baranovskis ?Running Pre-built Virtual Machine for SOA Suite and BPM Suite 11g PS5 on Mac OS X Snow Leopard (10.6http://fb.me/vB8nO0Vg OracleBlogsPrinciples of Service-Oriented Architecture by Douwe P. van den Bos http://ow.ly/1kIcOP OTNArchBeatOracle Public Cloud Architecture | @TylerJewell http://ow.ly/bHAcL The SOA Network ?Business Process Management, Service-Oriented Architecture, and Web 2.0: Business Transformation or.http://bit.ly/LBgREL #ITNews #SOA OracleBlogs ?Oracle SOA Foundation Practitioner Certificationhttp://ow.ly/1kGYYg Frank Nimphius ?Learn Advanced ADF. ORACLE Fusion Middleware Summer Camps in Lisbon - July 9th - 13thhttp://bit.ly/KGCl3i SOA CommunityTransform Your Application Integration with Best Practices from Oracle Customershttps://blogs.oracle.com/SOA/entry/transform_your_application_integration_with #soacommunity #soa #bpm Simone GeibWhat you always wanted to know about #oraclesoa diagnostics: Shawn Bailey, Overview of SOA Diagnostics in 11.1.1.6,http://ow.ly/bxK0M Oracle SOA ?Save the date: Jun 21 10AM, SOA & BPM Customer Insight Series. Hear how Choice Hotels went from legacy to #oraclesoa http://bit.ly/LsNDGl OTNArchBeat ?New VirtualBox images for Oracle SOA Suite & Oracle BPM Suite 11.1.1.6.0http://ow.ly/bwDAl OracleBlogs ?Process development lifecycle in Oracle BPM 11g http://ow.ly/1ktesY Daniel AmadeiNew post: Oracle BPEL 11g Message Delivery & Recovery.http://amadei.com.br/blog/index.php /oracle-bpel-11g-message-delivery SOA Community ?Sending out the June edition of the #soacommunity newsletter - read it or become a member http://www.oracle.com/goto/emea/soa!#soa #bpm Arun Pareek ?For the past six months Ahmed Aboulnaga and me have been working on Oracle SOA Suite 11g Administrator's Handbook.http://lnkd.in/CAvpUQ SOA CommunitySun shine all day no clouds - solar eclipse is over... #sunshine #cloud http://www.infoq.com/presentations/Swarm-Computing Michel SchildmeijerWatch my blog Oracle Service Bus 11g: listing projects and services with WLST - part 1 http://lnkd.in/B7f3GQ @TITAN_GS @wlscommunity OTNArchBeatBook Review: Oracle Application Integration Architecture (AIA) Foundation Pack 11gR1: Essentials | Rajesh Rahejahttp://ow.ly/bn2cc OTNArchBeat ?Driving from Business Architecture to Business Process Services | @vghariharan http://ow.ly/bn5UB OTNArchBeat ?SOA Analysis within the Department of Defense Architecture Framework (DoDAF) 2.0 - Part II | Dawit Lessanu http://ow.ly/bn6sX Simone Geib ?Contact me directly for ideas how to improvehttp://bit.ly/advancedsoasuite and additional posts, presentations, white papers, ... #soasuite Simone Geib ?#soasuite advanced OTN page has become too cluttered. Broke it into separate pages to start with. http://bit.ly/advancedsoasuite OracleBlogs ?June Webcast: SOA Gateway Implementation and Troubleshooting (2 sessions) http://ow.ly/1kbRFA ServiceTechSymposium ?New session just posted to calendar: "NoSQL for Data Services, Data Virtualization & Big Data" by Guido Schmutz, Trivadis AG ://ow.ly/bjjOeDebra Lilley ?looks good - real proof people are using the apps ! RT @fteter: Very cool Fusion Applications Help site: http://bit.ly/L3nvOR #FusionApps demed ?rapid proliferation of cloud computing will drive convergence of SOA and cloud paradigms" http://ovum.com/2012/05/18/soa-paves-the-way-for-cloud/ SOA CommunityMiddleware Oracle Excellence Awards 2012-HAPPY NEW YEAR! https://soacommunity.wordpress.com/2012/05/31/middleware-oracle-excellence-awards-2012happy-new-year/ #soacommunity #opn #opnaward #specialization #oracle SOA CommunityHappy New Year #soacommunity thanks for the business! Time for a drink http://pic.twitter.com/zkK08KWB OTNArchBeat ?Who should ‘own’ the Enterprise Architecture? | Michael Glas http://bit.ly/K0ge0Q SOA Communitytop Tweets SOA Partner Community – May 2012 http://wp.me/p10C8u-pP ServiceTechSymposiumNew session just posted to Symposium calendar: "Elastic SOA in the Cloud" by Steve Millidge, C2B2 Consulting http://www.servicetechsymposium.com/agenda2012.php #elastic_soa_in_the_cloud orclateamsoa ?A-Team Blog #ateam: How to Set JVM Parameters in Oracle SOA 11Ghttp://ow.ly/1k2cnl ServiceTechSymposium ?New session just posted to Symposium calendar: "SOA Governance at EDP: A Global Energy Company" by Manuel Rosa, Linkhttp://www.servicetechsymposium.com/agenda2012.php#soa_governance_at_edp SOA Community ?VirtualBox image SOA Suite & BPM Suite 11.1.1.6.0–Your feedback?http://wp.me/p10C8u-qh Oracle MiddlewareSave the date: Jun 21 10AM, SOA & BPM Customer Insight Series. Hear how Choice Hotels went from legacy to#oraclesoa http://bit.ly/LU1y5N OTNArchBeat ?Goodbye, Silos. Hello SOA. | @stephanieoverbyhttp://pub.vitrue.com/NJJO SOA CommunityBPM Standard Edition - to start your BPM project http://wp.me/p10C8u-qj Please feel free to send us your news! And add your blog to our SOA blog wiki. Back to top OVERVIEW OF SOA DIAGNOSTICS IN 11.1.1.6 What tools are available for diagnosing SOA Suite issues? There are a variety of tools available to help you and Support diagnose SOA Suite issues in 11g but it can be confusing as to which tool is appropriate for a particular situation and what their relationships are. This blog post will introduce the various tools and attempt to clarify what each is for and how they are related. Let's first list the tools we'll be addressing: RDA: Remote Diagnostic Agent DFW: Diagnostic Framework Selective Tracing DMS: Dynamic Monitoring Service ODL: Oracle Diagnostic Logging ADR: Automatic Diagnostics Repository ADRCI: Automatic Diagnostics Repository Command Interpreter WLDF: WebLogic Diagnostic Framework This overview is not mean to be a comprehensive guide on using all of these tools, however, extensive reference materials are included that will provide many more details on their execution. Another point to note is that all of these tools are applicable for Fusion Middleware as a whole but specific products may or may not have implemented features to leverage them. A couple of the tools have a WebLogic Scripting Tool or 'WLST' interface. WLST is a command interface for executing pre-built functions and custom scripts against a domain. A detailed WLST tutorial is beyond the scope of this post but you can find general information here. There are more specific resources in the below sections.In this post when we refer to 'Enterprise Manager' or 'EM' we are referring to Enterprise Manager Fusion Middleware Control. read the full blog post here. Read more on Oracle and post your comment here. Back to top BUSINESS DRIVEN DEVELOPMENT (BDD) DEMO NOW AVAILABLE! For access to the Oracle demo systems please visit OPN and talk to your Partner Expert DSS is pleased to announce the availability of the demo “Business Driven Development“. This innovative demonstration uses a case-study approach to show business users how they can easily streamline their Business Processes - delivering greater efficiency, agility, visibility and collaboration with Oracle BPM and WebCenter. The BDD demonstration uses a case study-based approach to highlight a business problem at a fictional company, Avitek Corporation, and uses Oracle BPM and Oracle WebCenter to solve the business problem. This holistic approach has specifically been used to appeal to a non-technical business analyst user. This demo is NOT focused on product features, but aims to guide users through a complete BPM lifecycle. The scenario is based on improving a simple order process (scenario details are in the demo script). Avitek Corporation is sufferinng from a manual email-driven ordering process. Sales reps don’t know where the customer orders are stuck (no visibility) and finance users are unable to manually approve every order (no automation). There are several areas where this process can be improved with Business Process Management technology. This demo shows how improving following areas will ignificantly help resolve the business problems Avitek Corporation is facing. Areas for improvement include: Utilizing BPM for process management, rather than an unregulated, email-based process. Utilizing automated services, rather than requiring a human to key into a system. For example, Finance checking the customer’s credit rating is something that could be automated. Centralizing business rules that can be integrated into a business process, rather than requiring a human to process them. For example, Finance must determine when orders can be automatically approved. Provide insight and visibility into the process. For example, Sales Rep needs to know the status of their customer’s orders. The BDD Demo uses the following products. Oracle BPM Suite 11g PS4FP Oracle WebCenter 11g PS4FP (for Process Spaces) Oracle Business Activity Monitoring 11g Oracle Database 11g Back to top SOA LIFECYCLE MANAGEMENT For access to the Oracle demo systems please visit OPN and talk to your Partner Expert We are pleased to announce the availability of the SOA Management demo that showcases some of the key provisioning and lifecycle management capabilities of SOA Management Pack Enterprise Edition (EE). This demo specifically focuses on some of the lifecycle management solutions for Oracle SOA Suite and Oracle Service Bus (OSB). Demo Highlights The demo showcases the following capabilities. Provisioning of SOA Composites Provisioning of OSB Projects Provision SOA and OSB artifacts in a future maintenance window Back to top ORACLE FUSION APPLICATIONS DESIGN PATTERNS The Oracle Fusion Applications user experience design patterns are published! These new, reusable usability solutions and best-practices, which will join the Oracle dashboard patterns and guidelines that are already available online, are used by Oracle to artfully bring to life a new standard in the user experience, or UX, of enterprise applications. Now, the Oracle applications development community can benefit from the science behind the Oracle Fusion Applications user experience, too. These Oracle Fusion Applications UX Design Patterns, or blueprints, enable Oracle applications developers and system implementers everywhere to leverage professional usability insight when: tailoring an Oracle Fusion application, creating coexistence solutions that existing users will be delighted with, thus enabling graceful user transitions to Oracle Fusion Applications down the road, or designing exciting, new, highly usable applications in the cloud or on-premise. Based on the Oracle Application Development Framework (ADF) components, the Oracle Fusion Applications patterns and guidelines are proven with real users and in the Applications UX usability labs, so you can get right to work coding productivity-enhancing designs that provide an advantage for your entire business. What’s the best way to get started? We’ve made that easy, too. The Design Filter Tool (DeFT) selects the best pattern for your user type and task. Simply adapt your selection for your own task flow and content, and you’re on your way to a really great applications user experience. More Oracle applications design patterns and training are coming your way in the future. To provide feedback on the sets that are currently available, let me know in the comments! Read more on Fusionapps and post your comment here. Back to top UPDATED ORACLE MATERIAL Integrated SOA Gateway Documentation - Implementation Guide | Developer’s Guide Webcast Series: Oracle’s SOA and Oracle Business Process Management Solutions (Choice Hotels, Eaton, Farmers Insurance) BAM design pointers By Kavitha Srinivasan Seeking Oracle Fusion Middleware Go Live StoriesOracle Fusion Middleware product management is looking for recent go live stories to share with the Oracle sales team, sales consulting, product management and other internal groups. Customer contact details may remain anonymous. Your successful implementation will be featured in a quarterly report. The chance to present on an internal webcast is also available. Contact Maria Forney ([email protected]) if you have a noteworthy implementation success story. This is a good opportunity for partners interested in showcasing Oracle Fusion Middleware implementations, and gaining more exposure within Oracle. Performance tuning resources. All in one: docs, blogs, WPs, ppts: http://bit.ly/soa_resources Back to top HAVE YOU MISSED OUR LAST SOA PARTNER COMMUNITY WEBCASTS? UPK Webcast Business Driven Application Management & BPM11g & Application Grid & GoldenGate & Fusion Middleware Pricing & OC4J to WebLogic & Next Generation SOA & Fusion Middleware in Utility & Fusion Middleware in Communications & Fusion Middleware in Public Services & Fusion Middleware in Financial Services Please check your local OPN trainings calendar for additional training dates and locations. Back to top SOA PARTNER COMMUNITY CALENDAR On-Demand Trainings Event Name Language Type SOA Virtual Developers Day English Tech In-Class Trainings Date Event name Location / Country Contact person Type 09-13.07.2012 BPM Suite 11g advanced training by David Read Lisbon, Portugal Jürgen Kress Tech 09-13.07.2012 ADF 11g advanced training by Grant Ronald and Frank Nimphius Lisbon, Portugal Jürgen Kress Tech 09-13.07.2012 WebCenter Portal advanced training by Stefan Krantz and Angelo Santagata Lisbon, Portugal Jürgen Kress Tech 10.07.2012 Fusion Middleware Virtual Developer Day Online OTN Tech 10- 12.07.2012 WebLogic 12c training by Cosmin Tudor Lisbon, Portugal Jürgen Kress Tech 16-18.07.2012 SOA Suite 11g advanced training by Niall Commiskey Munich, Germany Jürgen Kress Tech 16-18.07.2012 ADF for BPM Suite 11g advanced training by David Read Munich, Germany Jürgen Kress Tech 16-18.07.2012 WebCenter Sites 11g advanced training by Product Management Munich, Germany Jürgen Kress Tech 17-20.07.2012 Oracle BPM 11g Implementation Bootcamp Live Virtual Class Oracle University Tech 23-26.07.2012 Oracle BPM 11g Implementation Bootcamp Utrecht, Netherlands Oracle University Tech 29-31.08.2012 Oracle BPM 11g Implementation Bootcamp Live Virtual Class Oracle University Tech 02-05.10.2012 Oracle BPM 11g Implementation Bootcamp Utrecht, Netherlands Oracle University Tech 15-18.10.2012 Oracle BPM 11g Implementation Bootcamp Utrecht, Netherlands Oracle University Tech 28-30.11.2012 Oracle AIA 11g Implementation Bootcamp Live Virtual Class Oracle University Tech 11-14.12.2012 Oracle BPM 11g Implementation Bootcamp Live Virtual Class Oracle University Tech 20-22.2.2013 Oracle AIA 11g Implementation Bootcamp Utrecht, Netherlands Oracle University Tech 14-17.1.2013 Oracle BPM 11g Implementation Bootcamp Utrecht, Netherlands Oracle University Tech 15-18.3.2013 Oracle BPM 11g Implementation Bootcamp Utrecht, Netherlands Oracle University Tech Please check your local OPN Training Calendar for additional training and locations here. Back to top SOASCHOOL.COM - SOA CERTIFIED PROFESSIONAL(SOACP) PROGRAM The SOASchool.com - SOA Certified Professional (SOACP) program is dedicated to excellence in the field of SOA and service-oriented computing. Through a series of seasoned course modules and exams, IT professionals have the opportunity to obtain a number of different certifications to recognize their accomplishment of gaining "project ready" SOA proficiency. This comprehensive and strictly vendor-neutral program was developed in cooperation with best-selling SOA author Thomas Erl and several major SOA organizations and academic institutions. Through the involvement of the SOA Education Committee, course contents and certification requirements are constantly reviewed and revised to stay current with developments in the service-oriented computing industry. The program is currently comprised of 12 course modules and 5 certifications and is expanding to 18 course modules and 8 certifications throughout 2009. For more information, visit www.soaschool.com and www.soacp.com. Blog Twitter LinkedIn Mix Forum Wiki Back to top YOUR CONTENT ON THE NEWSLETTER AND ON THE SOA COMMUNITY PORTAL Publishing Your StoriesWe would like to invite our partners to publish information in the newsletter or on our SOA Community portal. Especially we are looking for your real life experience with our SOA technology. Please send your documents to Jürgen Kress. We look forward to getting your suggestions! Back to top SOA DISCUSSION FORUM BECOMES INTERACTIVE AT THE SOA COMMUNITY! Do you want to chat to experts, including partners and Oracle SOA Product Development? Do you want to get the latest information about our SOA solutions and events?Attend our private online SOA Discussion Forum at OTN. Please send your OTN forums user name to Brigitte Felisaz. You must be a registered user to access the SOA Discussion Forum. Back to top INVITE YOUR COLLEAGUES TO JOIN THE SOA COMMUNITY Please feel free to invite your colleagues to join the SOA Community and to participate in the SOA Assessment tests. For registration please login the Oracle PartnerNetwork and go to: www.oracle.com/goto/emea/soa For any questions on the above or concerning SOA and Oracle in general please contact the Oracle EMEA Alliances & Channels SOA Team. Best regardsOracle EMEA SOA TeamJürgen Kress Jürgen KressSOA Partner Adoption EMEATel. +49 89 1430 1479E-Mail: [email protected]

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SQL Server 2012 - AlwaysOn

- by Claus Jandausch

Ich war nicht nur irritiert, ich war sogar regelrecht schockiert - und für einen kurzen Moment sprachlos (was nur selten der Fall ist). Gerade eben hatte mich jemand gefragt "Wann Oracle denn etwas Vergleichbares wie AlwaysOn bieten würde - und ob überhaupt?" War ich hier im falschen Film gelandet? Ich konnte nicht anders, als meinen Unmut kundzutun und zu erklären, dass die Fragestellung normalerweise anders herum läuft. Zugegeben - es mag vielleicht strittige Punkte geben im Vergleich zwischen Oracle und SQL Server - bei denen nicht unbedingt immer Oracle die Nase vorn haben muss - aber das Thema Clustering für Hochverfügbarkeit (HA), Disaster Recovery (DR) und Skalierbarkeit gehört mit Sicherheit nicht dazu. Dieses Erlebnis hakte ich am Nachgang als Einzelfall ab, der so nie wieder vorkommen würde. Bis ich kurz darauf eines Besseren belehrt wurde und genau die selbe Frage erneut zu hören bekam. Diesmal sogar im Exadata-Umfeld und einem Oracle Stretch Cluster. Einmal ist keinmal, doch zweimal ist einmal zu viel... Getreu diesem alten Motto war mir klar, dass man das so nicht länger stehen lassen konnte. Ich habe keine Ahnung, wie die Microsoft Marketing Abteilung es geschafft hat, unter dem AlwaysOn Brading eine innovative Technologie vermuten zu lassen - aber sie hat ihren Job scheinbar gut gemacht. Doch abgesehen von einem guten Marketing, stellt sich natürlich die Frage, was wirklich dahinter steckt und wie sich das Ganze mit Oracle vergleichen lässt - und ob überhaupt? Damit wären wir wieder bei der ursprünglichen Frage angelangt. So viel zum Hintergrund dieses Blogbeitrags - von meiner Antwort handelt der restliche Blog. "Windows was the God ..." Um den wahren Unterschied zwischen Oracle und Microsoft verstehen zu können, muss man zunächst das bedeutendste Microsoft Dogma kennen. Es lässt sich schlicht und einfach auf den Punkt bringen: "Alles muss auf Windows basieren." Die Überschrift dieses Absatzes ist kein von mir erfundener Ausspruch, sondern ein Zitat. Konkret stammt es aus einem längeren Artikel von Kurt Eichenwald in der Vanity Fair aus dem August 2012. Er lautet Microsoft's Lost Decade und sei jedem ans Herz gelegt, der die "Microsoft-Maschinerie" unter Steve Ballmer und einige ihrer Kuriositäten besser verstehen möchte. "YOU TALKING TO ME?" Microsoft C.E.O. Steve Ballmer bei seiner Keynote auf der 2012 International Consumer Electronics Show in Las Vegas am 9. Januar Manche Dinge in diesem Artikel mögen überspitzt dargestellt erscheinen - sind sie aber nicht. Vieles davon kannte ich bereits aus eigener Erfahrung und kann es nur bestätigen. Anderes hat sich mir erst so richtig erschlossen. Insbesondere die folgenden Passagen führten zum Aha-Erlebnis: “Windows was the god—everything had to work with Windows,” said Stone... “Every little thing you want to write has to build off of Windows (or other existing roducts),” one software engineer said. “It can be very confusing, …” Ich habe immer schon darauf hingewiesen, dass in einem SQL Server Failover Cluster die Microsoft Datenbank eigentlich nichts Nenneswertes zum Geschehen beiträgt, sondern sich voll und ganz auf das Windows Betriebssystem verlässt. Deshalb muss man auch die Windows Server Enterprise Edition installieren, soll ein Failover Cluster für den SQL Server eingerichtet werden. Denn hier werden die Cluster Services geliefert - nicht mit dem SQL Server. Er ist nur lediglich ein weiteres Server Produkt, für das Windows in Ausfallszenarien genutzt werden kann - so wie Microsoft Exchange beispielsweise, oder Microsoft SharePoint, oder irgendein anderes Server Produkt das auf Windows gehostet wird. Auch Oracle kann damit genutzt werden. Das Stichwort lautet hier: Oracle Failsafe. Nur - warum sollte man das tun, wenn gleichzeitig eine überlegene Technologie wie die Oracle Real Application Clusters (RAC) zur Verfügung steht, die dann auch keine Windows Enterprise Edition voraussetzen, da Oracle die eigene Clusterware liefert. Welche darüber hinaus für kürzere Failover-Zeiten sorgt, da diese Cluster-Technologie Datenbank-integriert ist und sich nicht auf "Dritte" verlässt. Wenn man sich also schon keine technischen Vorteile mit einem SQL Server Failover Cluster erkauft, sondern zusätzlich noch versteckte Lizenzkosten durch die Lizenzierung der Windows Server Enterprise Edition einhandelt, warum hat Microsoft dann in den vergangenen Jahren seit SQL Server 2000 nicht ebenfalls an einer neuen und innovativen Lösung gearbeitet, die mit Oracle RAC mithalten kann? Entwickler hat Microsoft genügend? Am Geld kann es auch nicht liegen? Lesen Sie einfach noch einmal die beiden obenstehenden Zitate und sie werden den Grund verstehen. Anders lässt es sich ja auch gar nicht mehr erklären, dass AlwaysOn aus zwei unterschiedlichen Technologien besteht, die beide jedoch wiederum auf dem Windows Server Failover Clustering (WSFC) basieren. Denn daraus ergeben sich klare Nachteile - aber dazu später mehr. Um AlwaysOn zu verstehen, sollte man sich zunächst kurz in Erinnerung rufen, was Microsoft bisher an HA/DR (High Availability/Desaster Recovery) Lösungen für SQL Server zur Verfügung gestellt hat. Replikation Basiert auf logischer Replikation und Pubisher/Subscriber Architektur Transactional Replication Merge Replication Snapshot Replication Microsoft's Replikation ist vergleichbar mit Oracle GoldenGate. Oracle GoldenGate stellt jedoch die umfassendere Technologie dar und bietet High Performance. Log Shipping Microsoft's Log Shipping stellt eine einfache Technologie dar, die vergleichbar ist mit Oracle Managed Recovery in Oracle Version 7. Das Log Shipping besitzt folgende Merkmale: Transaction Log Backups werden von Primary nach Secondary/ies geschickt Einarbeitung (z.B. Restore) auf jedem Secondary individuell Optionale dritte Server Instanz (Monitor Server) für Überwachung und Alarm Log Restore Unterbrechung möglich für Read-Only Modus (Secondary) Keine Unterstützung von Automatic Failover Database Mirroring Microsoft's Database Mirroring wurde verfügbar mit SQL Server 2005, sah aus wie Oracle Data Guard in Oracle 9i, war funktional jedoch nicht so umfassend. Für ein HA/DR Paar besteht eine 1:1 Beziehung, um die produktive Datenbank (Principle DB) abzusichern. Auf der Standby Datenbank (Mirrored DB) werden alle Insert-, Update- und Delete-Operationen nachgezogen. Modi Synchron (High-Safety Modus) Asynchron (High-Performance Modus) Automatic Failover Unterstützt im High-Safety Modus (synchron) Witness Server vorausgesetzt Zur Frage der Kontinuität Es stellt sich die Frage, wie es um diesen Technologien nun im Zusammenhang mit SQL Server 2012 bestellt ist. Unter Fanfaren seinerzeit eingeführt, war Database Mirroring das erklärte Mittel der Wahl. Ich bin kein Produkt Manager bei Microsoft und kann hierzu nur meine Meinung äußern, aber zieht man den SQL AlwaysOn Team Blog heran, so sieht es nicht gut aus für das Database Mirroring - zumindest nicht langfristig. "Does AlwaysOn Availability Group replace Database Mirroring going forward?” “The short answer is we recommend that you migrate from the mirroring configuration or even mirroring and log shipping configuration to using Availability Group. Database Mirroring will still be available in the Denali release but will be phased out over subsequent releases. Log Shipping will continue to be available in future releases.” Damit wären wir endlich beim eigentlichen Thema angelangt. Was ist eine sogenannte Availability Group und was genau hat es mit der vielversprechend klingenden Bezeichnung AlwaysOn auf sich? SQL Server 2012 - AlwaysOn Zwei HA-Features verstekcne sich hinter dem “AlwaysOn”-Branding. Einmal das AlwaysOn Failover Clustering aka SQL Server Failover Cluster Instances (FCI) - zum Anderen die AlwaysOn Availability Groups. Failover Cluster Instances (FCI) Entspricht ungefähr dem Stretch Cluster Konzept von Oracle Setzt auf Windows Server Failover Clustering (WSFC) auf Bietet HA auf Instanz-Ebene AlwaysOn Availability Groups (Verfügbarkeitsgruppen) Ähnlich der Idee von Consistency Groups, wie in Storage-Level Replikations-Software von z.B. EMC SRDF Abhängigkeiten zu Windows Server Failover Clustering (WSFC) Bietet HA auf Datenbank-Ebene Hinweis: Verwechseln Sie nicht eine SQL Server Datenbank mit einer Oracle Datenbank. Und auch nicht eine Oracle Instanz mit einer SQL Server Instanz. Die gleichen Begriffe haben hier eine andere Bedeutung - nicht selten ein Grund, weshalb Oracle- und Microsoft DBAs schnell aneinander vorbei reden. Denken Sie bei einer SQL Server Datenbank eher an ein Oracle Schema, das kommt der Sache näher. So etwas wie die SQL Server Northwind Datenbank ist vergleichbar mit dem Oracle Scott Schema. Wenn Sie die genauen Unterschiede kennen möchten, finden Sie eine detaillierte Beschreibung in meinem Buch "Oracle10g Release 2 für Windows und .NET", erhältich bei Lehmanns, Amazon, etc. Windows Server Failover Clustering (WSFC) Wie man sieht, basieren beide AlwaysOn Technologien wiederum auf dem Windows Server Failover Clustering (WSFC), um einerseits Hochverfügbarkeit auf Ebene der Instanz zu gewährleisten und andererseits auf der Datenbank-Ebene. Deshalb nun eine kurze Beschreibung der WSFC. Die WSFC sind ein mit dem Windows Betriebssystem geliefertes Infrastruktur-Feature, um HA für Server Anwendungen, wie Microsoft Exchange, SharePoint, SQL Server, etc. zu bieten. So wie jeder andere Cluster, besteht ein WSFC Cluster aus einer Gruppe unabhängiger Server, die zusammenarbeiten, um die Verfügbarkeit einer Applikation oder eines Service zu erhöhen. Falls ein Cluster-Knoten oder -Service ausfällt, kann der auf diesem Knoten bisher gehostete Service automatisch oder manuell auf einen anderen im Cluster verfügbaren Knoten transferriert werden - was allgemein als Failover bekannt ist. Unter SQL Server 2012 verwenden sowohl die AlwaysOn Avalability Groups, als auch die AlwaysOn Failover Cluster Instances die WSFC als Plattformtechnologie, um Komponenten als WSFC Cluster-Ressourcen zu registrieren. Verwandte Ressourcen werden in eine Ressource Group zusammengefasst, die in Abhängigkeit zu anderen WSFC Cluster-Ressourcen gebracht werden kann. Der WSFC Cluster Service kann jetzt die Notwendigkeit zum Neustart der SQL Server Instanz erfassen oder einen automatischen Failover zu einem anderen Server-Knoten im WSFC Cluster auslösen. Failover Cluster Instances (FCI) Eine SQL Server Failover Cluster Instanz (FCI) ist eine einzelne SQL Server Instanz, die in einem Failover Cluster betrieben wird, der aus mehreren Windows Server Failover Clustering (WSFC) Knoten besteht und so HA (High Availability) auf Ebene der Instanz bietet. Unter Verwendung von Multi-Subnet FCI kann auch Remote DR (Disaster Recovery) unterstützt werden. Eine weitere Option für Remote DR besteht darin, eine unter FCI gehostete Datenbank in einer Availability Group zu betreiben. Hierzu später mehr. FCI und WSFC Basis FCI, das für lokale Hochverfügbarkeit der Instanzen genutzt wird, ähnelt der veralteten Architektur eines kalten Cluster (Aktiv-Passiv). Unter SQL Server 2008 wurde diese Technologie SQL Server 2008 Failover Clustering genannt. Sie nutzte den Windows Server Failover Cluster. In SQL Server 2012 hat Microsoft diese Basistechnologie unter der Bezeichnung AlwaysOn zusammengefasst. Es handelt sich aber nach wie vor um die klassische Aktiv-Passiv-Konfiguration. Der Ablauf im Failover-Fall ist wie folgt: Solange kein Hardware-oder System-Fehler auftritt, werden alle Dirty Pages im Buffer Cache auf Platte geschrieben Alle entsprechenden SQL Server Services (Dienste) in der Ressource Gruppe werden auf dem aktiven Knoten gestoppt Die Ownership der Ressource Gruppe wird auf einen anderen Knoten der FCI transferriert Der neue Owner (Besitzer) der Ressource Gruppe startet seine SQL Server Services (Dienste) Die Connection-Anforderungen einer Client-Applikation werden automatisch auf den neuen aktiven Knoten mit dem selben Virtuellen Network Namen (VNN) umgeleitet Abhängig vom Zeitpunkt des letzten Checkpoints, kann die Anzahl der Dirty Pages im Buffer Cache, die noch auf Platte geschrieben werden müssen, zu unvorhersehbar langen Failover-Zeiten führen. Um diese Anzahl zu drosseln, besitzt der SQL Server 2012 eine neue Fähigkeit, die Indirect Checkpoints genannt wird. Indirect Checkpoints ähnelt dem Fast-Start MTTR Target Feature der Oracle Datenbank, das bereits mit Oracle9i verfügbar war. SQL Server Multi-Subnet Clustering Ein SQL Server Multi-Subnet Failover Cluster entspricht vom Konzept her einem Oracle RAC Stretch Cluster. Doch dies ist nur auf den ersten Blick der Fall. Im Gegensatz zu RAC ist in einem lokalen SQL Server Failover Cluster jeweils nur ein Knoten aktiv für eine Datenbank. Für die Datenreplikation zwischen geografisch entfernten Sites verlässt sich Microsoft auf 3rd Party Lösungen für das Storage Mirroring. Die Verbesserung dieses Szenario mit einer SQL Server 2012 Implementierung besteht schlicht darin, dass eine VLAN-Konfiguration (Virtual Local Area Network) nun nicht mehr benötigt wird, so wie dies bisher der Fall war. Das folgende Diagramm stellt dar, wie der Ablauf mit SQL Server 2012 gehandhabt wird. In Site A und Site B wird HA jeweils durch einen lokalen Aktiv-Passiv-Cluster sichergestellt. Besondere Aufmerksamkeit muss hier der Konfiguration und dem Tuning geschenkt werden, da ansonsten völlig inakzeptable Failover-Zeiten resultieren. Dies liegt darin begründet, weil die Downtime auf Client-Seite nun nicht mehr nur von der reinen Failover-Zeit abhängt, sondern zusätzlich von der Dauer der DNS Replikation zwischen den DNS Servern. (Rufen Sie sich in Erinnerung, dass wir gerade von Multi-Subnet Clustering sprechen). Außerdem ist zu berücksichtigen, wie schnell die Clients die aktualisierten DNS Informationen abfragen. Spezielle Konfigurationen für Node Heartbeat, HostRecordTTL (Host Record Time-to-Live) und Intersite Replication Frequeny für Active Directory Sites und Services werden notwendig. Default TTL für Windows Server 2008 R2: 20 Minuten Empfohlene Einstellung: 1 Minute DNS Update Replication Frequency in Windows Umgebung: 180 Minuten Empfohlene Einstellung: 15 Minuten (minimaler Wert) Betrachtet man diese Werte, muss man feststellen, dass selbst eine optimale Konfiguration die rigiden SLAs (Service Level Agreements) heutiger geschäftskritischer Anwendungen für HA und DR nicht erfüllen kann. Denn dies impliziert eine auf der Client-Seite erlebte Failover-Zeit von insgesamt 16 Minuten. Hierzu ein Auszug aus der SQL Server 2012 Online Dokumentation: Cons: If a cross-subnet failover occurs, the client recovery time could be 15 minutes or longer, depending on your HostRecordTTL setting and the setting of your cross-site DNS/AD replication schedule. Wir sind hier an einem Punkt unserer Überlegungen angelangt, an dem sich erklärt, weshalb ich zuvor das "Windows was the God ..." Zitat verwendet habe. Die unbedingte Abhängigkeit zu Windows wird zunehmend zum Problem, da sie die Komplexität einer Microsoft-basierenden Lösung erhöht, anstelle sie zu reduzieren. Und Komplexität ist das Letzte, was sich CIOs heutzutage wünschen. Zur Ehrenrettung des SQL Server 2012 und AlwaysOn muss man sagen, dass derart lange Failover-Zeiten kein unbedingtes "Muss" darstellen, sondern ein "Kann". Doch auch ein "Kann" kann im unpassenden Moment unvorhersehbare und kostspielige Folgen haben. Die Unabsehbarkeit ist wiederum Ursache vieler an der Implementierung beteiligten Komponenten und deren Abhängigkeiten, wie beispielsweise drei Cluster-Lösungen (zwei von Microsoft, eine 3rd Party Lösung). Wie man die Sache auch dreht und wendet, kommt man an diesem Fakt also nicht vorbei - ganz unabhängig von der Dauer einer Downtime oder Failover-Zeiten. Im Gegensatz zu AlwaysOn und der hier vorgestellten Version eines Stretch-Clusters, vermeidet eine entsprechende Oracle Implementierung eine derartige Komplexität, hervorgerufen duch multiple Abhängigkeiten. Den Unterschied machen Datenbank-integrierte Mechanismen, wie Fast Application Notification (FAN) und Fast Connection Failover (FCF). Für Oracle MAA Konfigurationen (Maximum Availability Architecture) sind Inter-Site Failover-Zeiten im Bereich von Sekunden keine Seltenheit. Wenn Sie dem Link zur Oracle MAA folgen, finden Sie außerdem eine Reihe an Customer Case Studies. Auch dies ist ein wichtiges Unterscheidungsmerkmal zu AlwaysOn, denn die Oracle Technologie hat sich bereits zigfach in höchst kritischen Umgebungen bewährt. Availability Groups (Verfügbarkeitsgruppen) Die sogenannten Availability Groups (Verfügbarkeitsgruppen) sind - neben FCI - der weitere Baustein von AlwaysOn. Hinweis: Bevor wir uns näher damit beschäftigen, sollten Sie sich noch einmal ins Gedächtnis rufen, dass eine SQL Server Datenbank nicht die gleiche Bedeutung besitzt, wie eine Oracle Datenbank, sondern eher einem Oracle Schema entspricht. So etwas wie die SQL Server Northwind Datenbank ist vergleichbar mit dem Oracle Scott Schema. Eine Verfügbarkeitsgruppe setzt sich zusammen aus einem Set mehrerer Benutzer-Datenbanken, die im Falle eines Failover gemeinsam als Gruppe behandelt werden. Eine Verfügbarkeitsgruppe unterstützt ein Set an primären Datenbanken (primäres Replikat) und einem bis vier Sets von entsprechenden sekundären Datenbanken (sekundäre Replikate). Es können jedoch nicht alle SQL Server Datenbanken einer AlwaysOn Verfügbarkeitsgruppe zugeordnet werden. Der SQL Server Spezialist Michael Otey zählt in seinem SQL Server Pro Artikel folgende Anforderungen auf: Verfügbarkeitsgruppen müssen mit Benutzer-Datenbanken erstellt werden. System-Datenbanken können nicht verwendet werden Die Datenbanken müssen sich im Read-Write Modus befinden. Read-Only Datenbanken werden nicht unterstützt Die Datenbanken in einer Verfügbarkeitsgruppe müssen Multiuser Datenbanken sein Sie dürfen nicht das AUTO_CLOSE Feature verwenden Sie müssen das Full Recovery Modell nutzen und es muss ein vollständiges Backup vorhanden sein Eine gegebene Datenbank kann sich nur in einer einzigen Verfügbarkeitsgruppe befinden und diese Datenbank düerfen nicht für Database Mirroring konfiguriert sein Microsoft empfiehl außerdem, dass der Verzeichnispfad einer Datenbank auf dem primären und sekundären Server identisch sein sollte Wie man sieht, eignen sich Verfügbarkeitsgruppen nicht, um HA und DR vollständig abzubilden. Die Unterscheidung zwischen der Instanzen-Ebene (FCI) und Datenbank-Ebene (Availability Groups) ist von hoher Bedeutung. Vor kurzem wurde mir gesagt, dass man mit den Verfügbarkeitsgruppen auf Shared Storage verzichten könne und dadurch Kosten spart. So weit so gut ... Man kann natürlich eine Installation rein mit Verfügbarkeitsgruppen und ohne FCI durchführen - aber man sollte sich dann darüber bewusst sein, was man dadurch alles nicht abgesichert hat - und dies wiederum für Desaster Recovery (DR) und SLAs (Service Level Agreements) bedeutet. Kurzum, um die Kombination aus beiden AlwaysOn Produkten und der damit verbundene Komplexität kommt man wohl in der Praxis nicht herum. Availability Groups und WSFC AlwaysOn hängt von Windows Server Failover Clustering (WSFC) ab, um die aktuellen Rollen der Verfügbarkeitsreplikate einer Verfügbarkeitsgruppe zu überwachen und zu verwalten, und darüber zu entscheiden, wie ein Failover-Ereignis die Verfügbarkeitsreplikate betrifft. Das folgende Diagramm zeigt de Beziehung zwischen Verfügbarkeitsgruppen und WSFC: Der Verfügbarkeitsmodus ist eine Eigenschaft jedes Verfügbarkeitsreplikats. Synychron und Asynchron können also gemischt werden: Availability Modus (Verfügbarkeitsmodus) Asynchroner Commit-Modus Primäres replikat schließt Transaktionen ohne Warten auf Sekundäres Synchroner Commit-Modus Primäres Replikat wartet auf Commit von sekundärem Replikat Failover Typen Automatic Manual Forced (mit möglichem Datenverlust) Synchroner Commit-Modus Geplanter, manueller Failover ohne Datenverlust Automatischer Failover ohne Datenverlust Asynchroner Commit-Modus Nur Forced, manueller Failover mit möglichem Datenverlust Der SQL Server kennt keinen separaten Switchover Begriff wie in Oracle Data Guard. Für SQL Server werden alle Role Transitions als Failover bezeichnet. Tatsächlich unterstützt der SQL Server keinen Switchover für asynchrone Verbindungen. Es gibt nur die Form des Forced Failover mit möglichem Datenverlust. Eine ähnliche Fähigkeit wie der Switchover unter Oracle Data Guard ist so nicht gegeben. SQL Sever FCI mit Availability Groups (Verfügbarkeitsgruppen) Neben den Verfügbarkeitsgruppen kann eine zweite Failover-Ebene eingerichtet werden, indem SQL Server FCI (auf Shared Storage) mit WSFC implementiert wird. Ein Verfügbarkeitesreplikat kann dann auf einer Standalone Instanz gehostet werden, oder einer FCI Instanz. Zum Verständnis: Die Verfügbarkeitsgruppen selbst benötigen kein Shared Storage. Diese Kombination kann verwendet werden für lokale HA auf Ebene der Instanz und DR auf Datenbank-Ebene durch Verfügbarkeitsgruppen. Das folgende Diagramm zeigt dieses Szenario: Achtung! Hier handelt es sich nicht um ein Pendant zu Oracle RAC plus Data Guard, auch wenn das Bild diesen Eindruck vielleicht vermitteln mag - denn alle sekundären Knoten im FCI sind rein passiv. Es existiert außerdem eine weitere und ernsthafte Einschränkung: SQL Server Failover Cluster Instanzen (FCI) unterstützen nicht das automatische AlwaysOn Failover für Verfügbarkeitsgruppen. Jedes unter FCI gehostete Verfügbarkeitsreplikat kann nur für manuelles Failover konfiguriert werden. Lesbare Sekundäre Replikate Ein oder mehrere Verfügbarkeitsreplikate in einer Verfügbarkeitsgruppe können für den lesenden Zugriff konfiguriert werden, wenn sie als sekundäres Replikat laufen. Dies ähnelt Oracle Active Data Guard, jedoch gibt es Einschränkungen. Alle Abfragen gegen die sekundäre Datenbank werden automatisch auf das Snapshot Isolation Level abgebildet. Es handelt sich dabei um eine Versionierung der Rows. Microsoft versuchte hiermit die Oracle MVRC (Multi Version Read Consistency) nachzustellen. Tatsächlich muss man die SQL Server Snapshot Isolation eher mit Oracle Flashback vergleichen. Bei der Implementierung des Snapshot Isolation Levels handelt sich um ein nachträglich aufgesetztes Feature und nicht um einen inhärenten Teil des Datenbank-Kernels, wie im Falle Oracle. (Ich werde hierzu in Kürze einen weiteren Blogbeitrag verfassen, wenn ich mich mit der neuen SQL Server 2012 Core Lizenzierung beschäftige.) Für die Praxis entstehen aus der Abbildung auf das Snapshot Isolation Level ernsthafte Restriktionen, derer man sich für den Betrieb in der Praxis bereits vorab bewusst sein sollte: Sollte auf der primären Datenbank eine aktive Transaktion zu dem Zeitpunkt existieren, wenn ein lesbares sekundäres Replikat in die Verfügbarkeitsgruppe aufgenommen wird, werden die Row-Versionen auf der korrespondierenden sekundären Datenbank nicht sofort vollständig verfügbar sein. Eine aktive Transaktion auf dem primären Replikat muss zuerst abgeschlossen (Commit oder Rollback) und dieser Transaktions-Record auf dem sekundären Replikat verarbeitet werden. Bis dahin ist das Isolation Level Mapping auf der sekundären Datenbank unvollständig und Abfragen sind temporär geblockt. Microsoft sagt dazu: "This is needed to guarantee that row versions are available on the secondary replica before executing the query under snapshot isolation as all isolation levels are implicitly mapped to snapshot isolation." (SQL Storage Engine Blog: AlwaysOn: I just enabled Readable Secondary but my query is blocked?) Grundlegend bedeutet dies, dass ein aktives lesbares Replikat nicht in die Verfügbarkeitsgruppe aufgenommen werden kann, ohne das primäre Replikat vorübergehend stillzulegen. Da Leseoperationen auf das Snapshot Isolation Transaction Level abgebildet werden, kann die Bereinigung von Ghost Records auf dem primären Replikat durch Transaktionen auf einem oder mehreren sekundären Replikaten geblockt werden - z.B. durch eine lang laufende Abfrage auf dem sekundären Replikat. Diese Bereinigung wird auch blockiert, wenn die Verbindung zum sekundären Replikat abbricht oder der Datenaustausch unterbrochen wird. Auch die Log Truncation wird in diesem Zustant verhindert. Wenn dieser Zustand längere Zeit anhält, empfiehlt Microsoft das sekundäre Replikat aus der Verfügbarkeitsgruppe herauszunehmen - was ein ernsthaftes Downtime-Problem darstellt. Die Read-Only Workload auf den sekundären Replikaten kann eingehende DDL Änderungen blockieren. Obwohl die Leseoperationen aufgrund der Row-Versionierung keine Shared Locks halten, führen diese Operatioen zu Sch-S Locks (Schemastabilitätssperren). DDL-Änderungen durch Redo-Operationen können dadurch blockiert werden. Falls DDL aufgrund konkurrierender Lese-Workload blockiert wird und der Schwellenwert für 'Recovery Interval' (eine SQL Server Konfigurationsoption) überschritten wird, generiert der SQL Server das Ereignis sqlserver.lock_redo_blocked, welches Microsoft zum Kill der blockierenden Leser empfiehlt. Auf die Verfügbarkeit der Anwendung wird hierbei keinerlei Rücksicht genommen. Keine dieser Einschränkungen existiert mit Oracle Active Data Guard. Backups auf sekundären Replikaten Über die sekundären Replikate können Backups (BACKUP DATABASE via Transact-SQL) nur als copy-only Backups einer vollständigen Datenbank, Dateien und Dateigruppen erstellt werden. Das Erstellen inkrementeller Backups ist nicht unterstützt, was ein ernsthafter Rückstand ist gegenüber der Backup-Unterstützung physikalischer Standbys unter Oracle Data Guard. Hinweis: Ein möglicher Workaround via Snapshots, bleibt ein Workaround. Eine weitere Einschränkung dieses Features gegenüber Oracle Data Guard besteht darin, dass das Backup eines sekundären Replikats nicht ausgeführt werden kann, wenn es nicht mit dem primären Replikat kommunizieren kann. Darüber hinaus muss das sekundäre Replikat synchronisiert sein oder sich in der Synchronisation befinden, um das Beackup auf dem sekundären Replikat erstellen zu können. Vergleich von Microsoft AlwaysOn mit der Oracle MAA Ich komme wieder zurück auf die Eingangs erwähnte, mehrfach an mich gestellte Frage "Wann denn - und ob überhaupt - Oracle etwas Vergleichbares wie AlwaysOn bieten würde?" und meine damit verbundene (kurze) Irritation. Wenn Sie diesen Blogbeitrag bis hierher gelesen haben, dann kennen Sie jetzt meine darauf gegebene Antwort. Der eine oder andere Punkt traf dabei nicht immer auf Jeden zu, was auch nicht der tiefere Sinn und Zweck meiner Antwort war. Wenn beispielsweise kein Multi-Subnet mit im Spiel ist, sind alle diesbezüglichen Kritikpunkte zunächst obsolet. Was aber nicht bedeutet, dass sie nicht bereits morgen schon wieder zum Thema werden könnten (Sag niemals "Nie"). In manch anderes Fettnäpfchen tritt man wiederum nicht unbedingt in einer Testumgebung, sondern erst im laufenden Betrieb. Erst recht nicht dann, wenn man sich potenzieller Probleme nicht bewusst ist und keine dedizierten Tests startet. Und wer AlwaysOn erfolgreich positionieren möchte, wird auch gar kein Interesse daran haben, auf mögliche Schwachstellen und den besagten Teufel im Detail aufmerksam zu machen. Das ist keine Unterstellung - es ist nur menschlich. Außerdem ist es verständlich, dass man sich in erster Linie darauf konzentriert "was geht" und "was gut läuft", anstelle auf das "was zu Problemen führen kann" oder "nicht funktioniert". Wer will schon der Miesepeter sein? Für mich selbst gesprochen, kann ich nur sagen, dass ich lieber vorab von allen möglichen Einschränkungen wissen möchte, anstelle sie dann nach einer kurzen Zeit der heilen Welt schmerzhaft am eigenen Leib erfahren zu müssen. Ich bin davon überzeugt, dass es Ihnen nicht anders geht. Nachfolgend deshalb eine Zusammenfassung all jener Punkte, die ich im Vergleich zur Oracle MAA (Maximum Availability Architecture) als unbedingt Erwähnenswert betrachte, falls man eine Evaluierung von Microsoft AlwaysOn in Betracht zieht. 1. AlwaysOn ist eine komplexe Technologie Der SQL Server AlwaysOn Stack ist zusammengesetzt aus drei verschiedenen Technlogien: Windows Server Failover Clustering (WSFC) SQL Server Failover Cluster Instances (FCI) SQL Server Availability Groups (Verfügbarkeitsgruppen) Man kann eine derartige Lösung nicht als nahtlos bezeichnen, wofür auch die vielen von Microsoft dargestellten Einschränkungen sprechen. Während sich frühere SQL Server Versionen in Richtung eigener HA/DR Technologien entwickelten (wie Database Mirroring), empfiehlt Microsoft nun die Migration. Doch weshalb dieser Schwenk? Er führt nicht zu einem konsisten und robusten Angebot an HA/DR Technologie für geschäftskritische Umgebungen. Liegt die Antwort in meiner These begründet, nach der "Windows was the God ..." noch immer gilt und man die Nachteile der allzu engen Kopplung mit Windows nicht sehen möchte? Entscheiden Sie selbst ... 2. Failover Cluster Instanzen - Kein RAC-Pendant Die SQL Server und Windows Server Clustering Technologie basiert noch immer auf dem veralteten Aktiv-Passiv Modell und führt zu einer Verschwendung von Systemressourcen. In einer Betrachtung von lediglich zwei Knoten erschließt sich auf Anhieb noch nicht der volle Mehrwert eines Aktiv-Aktiv Clusters (wie den Real Application Clusters), wie er von Oracle bereits vor zehn Jahren entwickelt wurde. Doch kennt man die Vorzüge der Skalierbarkeit durch einfaches Hinzufügen weiterer Cluster-Knoten, die dann alle gemeinsam als ein einziges logisches System zusammenarbeiten, versteht man was hinter dem Motto "Pay-as-you-Grow" steckt. In einem Aktiv-Aktiv Cluster geht es zwar auch um Hochverfügbarkeit - und ein Failover erfolgt zudem schneller, als in einem Aktiv-Passiv Modell - aber es geht eben nicht nur darum. An dieser Stelle sei darauf hingewiesen, dass die Oracle 11g Standard Edition bereits die Nutzung von Oracle RAC bis zu vier Sockets kostenfrei beinhaltet. Möchten Sie dazu Windows nutzen, benötigen Sie keine Windows Server Enterprise Edition, da Oracle 11g die eigene Clusterware liefert. Sie kommen in den Genuss von Hochverfügbarkeit und Skalierbarkeit und können dazu die günstigere Windows Server Standard Edition nutzen. 3. SQL Server Multi-Subnet Clustering - Abhängigkeit zu 3rd Party Storage Mirroring Die SQL Server Multi-Subnet Clustering Architektur unterstützt den Aufbau eines Stretch Clusters, basiert dabei aber auf dem Aktiv-Passiv Modell. Das eigentlich Problematische ist jedoch, dass man sich zur Absicherung der Datenbank auf 3rd Party Storage Mirroring Technologie verlässt, ohne Integration zwischen dem Windows Server Failover Clustering (WSFC) und der darunterliegenden Mirroring Technologie. Wenn nun im Cluster ein Failover auf Instanzen-Ebene erfolgt, existiert keine Koordination mit einem möglichen Failover auf Ebene des Storage-Array. 4. Availability Groups (Verfügbarkeitsgruppen) - Vier, oder doch nur Zwei? Ein primäres Replikat erlaubt bis zu vier sekundäre Replikate innerhalb einer Verfügbarkeitsgruppe, jedoch nur zwei im Synchronen Commit Modus. Während dies zwar einen Vorteil gegenüber dem stringenten 1:1 Modell unter Database Mirroring darstellt, fällt der SQL Server 2012 damit immer noch weiter zurück hinter Oracle Data Guard mit bis zu 30 direkten Stanbdy Zielen - und vielen weiteren durch kaskadierende Ziele möglichen. Damit eignet sich Oracle Active Data Guard auch für die Bereitstellung einer Reader-Farm Skalierbarkeit für Internet-basierende Unternehmen. Mit AwaysOn Verfügbarkeitsgruppen ist dies nicht möglich. 5. Availability Groups (Verfügbarkeitsgruppen) - kein asynchrones Switchover Die Technologie der Verfügbarkeitsgruppen wird auch als geeignetes Mittel für administrative Aufgaben positioniert - wie Upgrades oder Wartungsarbeiten. Man muss sich jedoch einem gravierendem Defizit bewusst sein: Im asynchronen Verfügbarkeitsmodus besteht die einzige Möglichkeit für Role Transition im Forced Failover mit Datenverlust! Um den Verlust von Daten durch geplante Wartungsarbeiten zu vermeiden, muss man den synchronen Verfügbarkeitsmodus konfigurieren, was jedoch ernstzunehmende Auswirkungen auf WAN Deployments nach sich zieht. Spinnt man diesen Gedanken zu Ende, kommt man zu dem Schluss, dass die Technologie der Verfügbarkeitsgruppen für geplante Wartungsarbeiten in einem derartigen Umfeld nicht effektiv genutzt werden kann. 6. Automatisches Failover - Nicht immer möglich Sowohl die SQL Server FCI, als auch Verfügbarkeitsgruppen unterstützen automatisches Failover. Möchte man diese jedoch kombinieren, wird das Ergebnis kein automatisches Failover sein. Denn ihr Zusammentreffen im Failover-Fall führt zu Race Conditions (Wettlaufsituationen), weshalb diese Konfiguration nicht länger das automatische Failover zu einem Replikat in einer Verfügbarkeitsgruppe erlaubt. Auch hier bestätigt sich wieder die tiefere Problematik von AlwaysOn, mit einer Zusammensetzung aus unterschiedlichen Technologien und der Abhängigkeit zu Windows. 7. Problematische RTO (Recovery Time Objective) Microsoft postioniert die SQL Server Multi-Subnet Clustering Architektur als brauchbare HA/DR Architektur. Bedenkt man jedoch die Problematik im Zusammenhang mit DNS Replikation und den möglichen langen Wartezeiten auf Client-Seite von bis zu 16 Minuten, sind strenge RTO Anforderungen (Recovery Time Objectives) nicht erfüllbar. Im Gegensatz zu Oracle besitzt der SQL Server keine Datenbank-integrierten Technologien, wie Oracle Fast Application Notification (FAN) oder Oracle Fast Connection Failover (FCF). 8. Problematische RPO (Recovery Point Objective) SQL Server ermöglicht Forced Failover (erzwungenes Failover), bietet jedoch keine Möglichkeit zur automatischen Übertragung der letzten Datenbits von einem alten zu einem neuen primären Replikat, wenn der Verfügbarkeitsmodus asynchron war. Oracle Data Guard hingegen bietet diese Unterstützung durch das Flush Redo Feature. Dies sichert "Zero Data Loss" und beste RPO auch in erzwungenen Failover-Situationen. 9. Lesbare Sekundäre Replikate mit Einschränkungen Aufgrund des Snapshot Isolation Transaction Level für lesbare sekundäre Replikate, besitzen diese Einschränkungen mit Auswirkung auf die primäre Datenbank. Die Bereinigung von Ghost Records auf der primären Datenbank, wird beeinflusst von lang laufenden Abfragen auf der lesabaren sekundären Datenbank. Die lesbare sekundäre Datenbank kann nicht in die Verfügbarkeitsgruppe aufgenommen werden, wenn es aktive Transaktionen auf der primären Datenbank gibt. Zusätzlich können DLL Änderungen auf der primären Datenbank durch Abfragen auf der sekundären blockiert werden. Und imkrementelle Backups werden hier nicht unterstützt. Keine dieser Restriktionen existiert unter Oracle Data Guard.

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Problem rendering VBO

- by Onno

I'm developing a game engine using OpenTK. I'm trying to get to grips with the use of VBO's. I've run into some trouble because somehow it doesn't render correctly. Thus far I've used immediate mode to render a test object, a test cube with a texture. namespace SharpEngine.Utility.Mesh { using System; using System.Collections.Generic; using OpenTK; using OpenTK.Graphics; using OpenTK.Graphics.OpenGL; using SharpEngine.Utility; using System.Drawing; public class ImmediateFaceBasedCube : IMesh { private IList<Face> faces = new List<Face>(); public ImmediateFaceBasedCube() { IList<Vector3> allVertices = new List<Vector3>(); //rechtsbovenvoor allVertices.Add(new Vector3(1.0f, 1.0f, 1.0f)); //0 //rechtsbovenachter allVertices.Add(new Vector3(1.0f, 1.0f, -1.0f)); //1 //linksbovenachter allVertices.Add(new Vector3(-1.0f, 1.0f, -1.0f)); //2 //linksbovenvoor allVertices.Add(new Vector3(-1.0f, 1.0f, 1.0f)); //3 //rechtsondervoor allVertices.Add(new Vector3(1.0f, -1.0f, 1.0f)); //4 //rechtsonderachter allVertices.Add(new Vector3(1.0f, -1.0f, -1.0f)); //5 //linksonderachter allVertices.Add(new Vector3(-1.0f, -1.0f, -1.0f)); //6 //linksondervoor allVertices.Add(new Vector3(-1.0f, -1.0f, 1.0f)); //7 IList<Vector2> textureCoordinates = new List<Vector2>(); textureCoordinates.Add(new Vector2(0, 0)); //AA - 0 textureCoordinates.Add(new Vector2(0, 0.3333333f)); //AB - 1 textureCoordinates.Add(new Vector2(0, 0.6666666f)); //AC - 2 textureCoordinates.Add(new Vector2(0, 1)); //AD - 3 textureCoordinates.Add(new Vector2(0.3333333f, 0)); //BA - 4 textureCoordinates.Add(new Vector2(0.3333333f, 0.3333333f)); //BB - 5 textureCoordinates.Add(new Vector2(0.3333333f, 0.6666666f)); //BC - 6 textureCoordinates.Add(new Vector2(0.3333333f, 1)); //BD - 7 textureCoordinates.Add(new Vector2(0.6666666f, 0)); //CA - 8 textureCoordinates.Add(new Vector2(0.6666666f, 0.3333333f)); //CB - 9 textureCoordinates.Add(new Vector2(0.6666666f, 0.6666666f)); //CC -10 textureCoordinates.Add(new Vector2(0.6666666f, 1)); //CD -11 textureCoordinates.Add(new Vector2(1, 0)); //DA -12 textureCoordinates.Add(new Vector2(1, 0.3333333f)); //DB -13 textureCoordinates.Add(new Vector2(1, 0.6666666f)); //DC -14 textureCoordinates.Add(new Vector2(1, 1)); //DD -15 Vector3 copy1 = new Vector3(-2.0f, -2.5f, -3.5f); IList<Vector3> normals = new List<Vector3>(); normals.Add(new Vector3(0, 1.0f, 0)); //0 normals.Add(new Vector3(0, 0, 1.0f)); //1 normals.Add(new Vector3(1.0f, 0, 0)); //2 normals.Add(new Vector3(0, 0, -1.0f)); //3 normals.Add(new Vector3(-1.0f, 0, 0)); //4 normals.Add(new Vector3(0, -1.0f, 0)); //5 //todo: move vertex normal and texture data to datastructure //todo: VBO based rendering //top face //1 IList<VertexData> verticesT1 = new List<VertexData>(); VertexData T1a = new VertexData(); T1a.Normal = normals[0]; T1a.TexCoord = textureCoordinates[5]; T1a.Position = allVertices[3]; verticesT1.Add(T1a); VertexData T1b = new VertexData(); T1b.Normal = normals[0]; T1b.TexCoord = textureCoordinates[9]; T1b.Position = allVertices[0]; verticesT1.Add(T1b); VertexData T1c = new VertexData(); T1c.Normal = normals[0]; T1c.TexCoord = textureCoordinates[10]; T1c.Position = allVertices[1]; verticesT1.Add(T1c); Face F1 = new Face(verticesT1); faces.Add(F1); //2 IList<VertexData> verticesT2 = new List<VertexData>(); VertexData T2a = new VertexData(); T2a.Normal = normals[0]; T2a.TexCoord = textureCoordinates[10]; T2a.Position = allVertices[1]; verticesT2.Add(T2a); VertexData T2b = new VertexData(); T2b.Normal = normals[0]; T2b.TexCoord = textureCoordinates[6]; T2b.Position = allVertices[2]; verticesT2.Add(T2b); VertexData T2c = new VertexData(); T2c.Normal = normals[0]; T2c.TexCoord = textureCoordinates[5]; T2c.Position = allVertices[3]; verticesT2.Add(T2c); Face F2 = new Face(verticesT2); faces.Add(F2); //front face //3 IList<VertexData> verticesT3 = new List<VertexData>(); VertexData T3a = new VertexData(); T3a.Normal = normals[1]; T3a.TexCoord = textureCoordinates[1]; T3a.Position = allVertices[3]; verticesT3.Add(T3a); VertexData T3b = new VertexData(); T3b.Normal = normals[1]; T3b.TexCoord = textureCoordinates[0]; T3b.Position = allVertices[7]; verticesT3.Add(T3b); VertexData T3c = new VertexData(); T3c.Normal = normals[1]; T3c.TexCoord = textureCoordinates[5]; T3c.Position = allVertices[0]; verticesT3.Add(T3c); Face F3 = new Face(verticesT3); faces.Add(F3); //4 IList<VertexData> verticesT4 = new List<VertexData>(); VertexData T4a = new VertexData(); T4a.Normal = normals[1]; T4a.TexCoord = textureCoordinates[5]; T4a.Position = allVertices[0]; verticesT4.Add(T4a); VertexData T4b = new VertexData(); T4b.Normal = normals[1]; T4b.TexCoord = textureCoordinates[0]; T4b.Position = allVertices[7]; verticesT4.Add(T4b); VertexData T4c = new VertexData(); T4c.Normal = normals[1]; T4c.TexCoord = textureCoordinates[4]; T4c.Position = allVertices[4]; verticesT4.Add(T4c); Face F4 = new Face(verticesT4); faces.Add(F4); //right face //5 IList<VertexData> verticesT5 = new List<VertexData>(); VertexData T5a = new VertexData(); T5a.Normal = normals[2]; T5a.TexCoord = textureCoordinates[2]; T5a.Position = allVertices[0]; verticesT5.Add(T5a); VertexData T5b = new VertexData(); T5b.Normal = normals[2]; T5b.TexCoord = textureCoordinates[1]; T5b.Position = allVertices[4]; verticesT5.Add(T5b); VertexData T5c = new VertexData(); T5c.Normal = normals[2]; T5c.TexCoord = textureCoordinates[6]; T5c.Position = allVertices[1]; verticesT5.Add(T5c); Face F5 = new Face(verticesT5); faces.Add(F5); //6 IList<VertexData> verticesT6 = new List<VertexData>(); VertexData T6a = new VertexData(); T6a.Normal = normals[2]; T6a.TexCoord = textureCoordinates[1]; T6a.Position = allVertices[4]; verticesT6.Add(T6a); VertexData T6b = new VertexData(); T6b.Normal = normals[2]; T6b.TexCoord = textureCoordinates[5]; T6b.Position = allVertices[5]; verticesT6.Add(T6b); VertexData T6c = new VertexData(); T6c.Normal = normals[2]; T6c.TexCoord = textureCoordinates[6]; T6c.Position = allVertices[1]; verticesT6.Add(T6c); Face F6 = new Face(verticesT6); faces.Add(F6); //back face //7 IList<VertexData> verticesT7 = new List<VertexData>(); VertexData T7a = new VertexData(); T7a.Normal = normals[3]; T7a.TexCoord = textureCoordinates[4]; T7a.Position = allVertices[5]; verticesT7.Add(T7a); VertexData T7b = new VertexData(); T7b.Normal = normals[3]; T7b.TexCoord = textureCoordinates[9]; T7b.Position = allVertices[2]; verticesT7.Add(T7b); VertexData T7c = new VertexData(); T7c.Normal = normals[3]; T7c.TexCoord = textureCoordinates[5]; T7c.Position = allVertices[1]; verticesT7.Add(T7c); Face F7 = new Face(verticesT7); faces.Add(F7); //8 IList<VertexData> verticesT8 = new List<VertexData>(); VertexData T8a = new VertexData(); T8a.Normal = normals[3]; T8a.TexCoord = textureCoordinates[9]; T8a.Position = allVertices[2]; verticesT8.Add(T8a); VertexData T8b = new VertexData(); T8b.Normal = normals[3]; T8b.TexCoord = textureCoordinates[4]; T8b.Position = allVertices[5]; verticesT8.Add(T8b); VertexData T8c = new VertexData(); T8c.Normal = normals[3]; T8c.TexCoord = textureCoordinates[8]; T8c.Position = allVertices[6]; verticesT8.Add(T8c); Face F8 = new Face(verticesT8); faces.Add(F8); //left face //9 IList<VertexData> verticesT9 = new List<VertexData>(); VertexData T9a = new VertexData(); T9a.Normal = normals[4]; T9a.TexCoord = textureCoordinates[8]; T9a.Position = allVertices[6]; verticesT9.Add(T9a); VertexData T9b = new VertexData(); T9b.Normal = normals[4]; T9b.TexCoord = textureCoordinates[13]; T9b.Position = allVertices[3]; verticesT9.Add(T9b); VertexData T9c = new VertexData(); T9c.Normal = normals[4]; T9c.TexCoord = textureCoordinates[9]; T9c.Position = allVertices[2]; verticesT9.Add(T9c); Face F9 = new Face(verticesT9); faces.Add(F9); //10 IList<VertexData> verticesT10 = new List<VertexData>(); VertexData T10a = new VertexData(); T10a.Normal = normals[4]; T10a.TexCoord = textureCoordinates[8]; T10a.Position = allVertices[6]; verticesT10.Add(T10a); VertexData T10b = new VertexData(); T10b.Normal = normals[4]; T10b.TexCoord = textureCoordinates[12]; T10b.Position = allVertices[7]; verticesT10.Add(T10b); VertexData T10c = new VertexData(); T10c.Normal = normals[4]; T10c.TexCoord = textureCoordinates[13]; T10c.Position = allVertices[3]; verticesT10.Add(T10c); Face F10 = new Face(verticesT10); faces.Add(F10); //bottom face //11 IList<VertexData> verticesT11 = new List<VertexData>(); VertexData T11a = new VertexData(); T11a.Normal = normals[5]; T11a.TexCoord = textureCoordinates[10]; T11a.Position = allVertices[7]; verticesT11.Add(T11a); VertexData T11b = new VertexData(); T11b.Normal = normals[5]; T11b.TexCoord = textureCoordinates[9]; T11b.Position = allVertices[6]; verticesT11.Add(T11b); VertexData T11c = new VertexData(); T11c.Normal = normals[5]; T11c.TexCoord = textureCoordinates[14]; T11c.Position = allVertices[4]; verticesT11.Add(T11c); Face F11 = new Face(verticesT11); faces.Add(F11); //12 IList<VertexData> verticesT12 = new List<VertexData>(); VertexData T12a = new VertexData(); T12a.Normal = normals[5]; T12a.TexCoord = textureCoordinates[13]; T12a.Position = allVertices[5]; verticesT12.Add(T12a); VertexData T12b = new VertexData(); T12b.Normal = normals[5]; T12b.TexCoord = textureCoordinates[14]; T12b.Position = allVertices[4]; verticesT12.Add(T12b); VertexData T12c = new VertexData(); T12c.Normal = normals[5]; T12c.TexCoord = textureCoordinates[9]; T12c.Position = allVertices[6]; verticesT12.Add(T12c); Face F12 = new Face(verticesT12); faces.Add(F12); } public void draw() { GL.Begin(BeginMode.Triangles); foreach (Face face in faces) { foreach (VertexData datapoint in face.verticesWithTexCoords) { GL.Normal3(datapoint.Normal); GL.TexCoord2(datapoint.TexCoord); GL.Vertex3(datapoint.Position); } } GL.End(); } } } Gets me this very nice picture: The immediate mode cube renders nicely and taught me a bit on how to use OpenGL, but VBO's are the way to go. Since I read on the OpenTK forums that OpenTK has problems doing VA's or DL's, I decided to skip using those. Now, I've tried to change this cube to a VBO by using the same vertex, normal and tc collections, and making float arrays from them by using the coordinates in combination with uint arrays which contain the index numbers from the immediate cube. (see the private functions at end of the code sample) Somehow this only renders two triangles namespace SharpEngine.Utility.Mesh { using System; using System.Collections.Generic; using OpenTK; using OpenTK.Graphics; using OpenTK.Graphics.OpenGL; using SharpEngine.Utility; using System.Drawing; public class VBOFaceBasedCube : IMesh { private int VerticesVBOID; private int VerticesVBOStride; private int VertexCount; private int ELementBufferObjectID; private int textureCoordinateVBOID; private int textureCoordinateVBOStride; //private int textureCoordinateArraySize; private int normalVBOID; private int normalVBOStride; public VBOFaceBasedCube() { IList<Vector3> allVertices = new List<Vector3>(); //rechtsbovenvoor allVertices.Add(new Vector3(1.0f, 1.0f, 1.0f)); //0 //rechtsbovenachter allVertices.Add(new Vector3(1.0f, 1.0f, -1.0f)); //1 //linksbovenachter allVertices.Add(new Vector3(-1.0f, 1.0f, -1.0f)); //2 //linksbovenvoor allVertices.Add(new Vector3(-1.0f, 1.0f, 1.0f)); //3 //rechtsondervoor allVertices.Add(new Vector3(1.0f, -1.0f, 1.0f)); //4 //rechtsonderachter allVertices.Add(new Vector3(1.0f, -1.0f, -1.0f)); //5 //linksonderachter allVertices.Add(new Vector3(-1.0f, -1.0f, -1.0f)); //6 //linksondervoor allVertices.Add(new Vector3(-1.0f, -1.0f, 1.0f)); //7 IList<Vector2> textureCoordinates = new List<Vector2>(); textureCoordinates.Add(new Vector2(0, 0)); //AA - 0 textureCoordinates.Add(new Vector2(0, 0.3333333f)); //AB - 1 textureCoordinates.Add(new Vector2(0, 0.6666666f)); //AC - 2 textureCoordinates.Add(new Vector2(0, 1)); //AD - 3 textureCoordinates.Add(new Vector2(0.3333333f, 0)); //BA - 4 textureCoordinates.Add(new Vector2(0.3333333f, 0.3333333f)); //BB - 5 textureCoordinates.Add(new Vector2(0.3333333f, 0.6666666f)); //BC - 6 textureCoordinates.Add(new Vector2(0.3333333f, 1)); //BD - 7 textureCoordinates.Add(new Vector2(0.6666666f, 0)); //CA - 8 textureCoordinates.Add(new Vector2(0.6666666f, 0.3333333f)); //CB - 9 textureCoordinates.Add(new Vector2(0.6666666f, 0.6666666f)); //CC -10 textureCoordinates.Add(new Vector2(0.6666666f, 1)); //CD -11 textureCoordinates.Add(new Vector2(1, 0)); //DA -12 textureCoordinates.Add(new Vector2(1, 0.3333333f)); //DB -13 textureCoordinates.Add(new Vector2(1, 0.6666666f)); //DC -14 textureCoordinates.Add(new Vector2(1, 1)); //DD -15 Vector3 copy1 = new Vector3(-2.0f, -2.5f, -3.5f); IList<Vector3> normals = new List<Vector3>(); normals.Add(new Vector3(0, 1.0f, 0)); //0 normals.Add(new Vector3(0, 0, 1.0f)); //1 normals.Add(new Vector3(1.0f, 0, 0)); //2 normals.Add(new Vector3(0, 0, -1.0f)); //3 normals.Add(new Vector3(-1.0f, 0, 0)); //4 normals.Add(new Vector3(0, -1.0f, 0)); //5 //todo: VBO based rendering uint[] vertexElements = { 3,0,1, //01 1,2,3, //02 3,7,0, //03 0,7,4, //04 0,4,1, //05 4,5,1, //06 5,2,1, //07 2,5,6, //08 6,3,2, //09 6,7,5, //10 7,6,4, //11 5,4,6 //12 }; VertexCount = vertexElements.Length; IList<uint> vertexElementList = new List<uint>(vertexElements); uint[] normalElements = { 0,0,0, 0,0,0, 1,1,1, 1,1,1, 2,2,2, 2,2,2, 3,3,3, 3,3,3, 4,4,4, 4,4,4, 5,5,5, 5,5,5 }; IList<uint> normalElementList = new List<uint>(normalElements); uint[] textureIndexArray = { 5,9,10, 10,6,5, 1,0,5, 5,0,4, 2,1,6, 1,5,6, 4,9,5, 9,4,8, 8,13,9, 8,12,13, 10,9,14, 13,14,9 }; //textureCoordinateArraySize = textureIndexArray.Length; IList<uint> textureIndexList = new List<uint>(textureIndexArray); LoadVBO(allVertices, normals, textureCoordinates, vertexElements, normalElementList, textureIndexList); } public void draw() { //bind vertices //bind elements //bind normals //bind texture coordinates GL.EnableClientState(ArrayCap.VertexArray); GL.EnableClientState(ArrayCap.NormalArray); GL.EnableClientState(ArrayCap.TextureCoordArray); GL.BindBuffer(BufferTarget.ArrayBuffer, VerticesVBOID); GL.VertexPointer(3, VertexPointerType.Float, VerticesVBOStride, 0); GL.BindBuffer(BufferTarget.ArrayBuffer, normalVBOID); GL.NormalPointer(NormalPointerType.Float, normalVBOStride, 0); GL.BindBuffer(BufferTarget.ArrayBuffer, textureCoordinateVBOID); GL.TexCoordPointer(2, TexCoordPointerType.Float, textureCoordinateVBOStride, 0); GL.BindBuffer(BufferTarget.ElementArrayBuffer, ELementBufferObjectID); GL.DrawElements(BeginMode.Polygon, VertexCount, DrawElementsType.UnsignedShort, 0); } //loads a static VBO void LoadVBO(IList<Vector3> vertices, IList<Vector3> normals, IList<Vector2> texcoords, uint[] elements, IList<uint> normalIndices, IList<uint> texCoordIndices) { int size; //todo // To create a VBO: // 1) Generate the buffer handles for the vertex and element buffers. // 2) Bind the vertex buffer handle and upload your vertex data. Check that the buffer was uploaded correctly. // 3) Bind the element buffer handle and upload your element data. Check that the buffer was uploaded correctly. float[] verticesArray = convertVector3fListToFloatArray(vertices); float[] normalsArray = createFloatArrayFromListOfVector3ElementsAndIndices(normals, normalIndices); float[] textureCoordinateArray = createFloatArrayFromListOfVector2ElementsAndIndices(texcoords, texCoordIndices); GL.GenBuffers(1, out VerticesVBOID); GL.BindBuffer(BufferTarget.ArrayBuffer, VerticesVBOID); Console.WriteLine("load 1 - vertices"); VerticesVBOStride = BlittableValueType.StrideOf(verticesArray); GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(verticesArray.Length * sizeof(float)), verticesArray, BufferUsageHint.StaticDraw); GL.GetBufferParameter(BufferTarget.ArrayBuffer, BufferParameterName.BufferSize, out size); if (verticesArray.Length * BlittableValueType.StrideOf(verticesArray) != size) { throw new ApplicationException("Vertex data not uploaded correctly"); } else { Console.WriteLine("load 1 finished ok"); size = 0; } Console.WriteLine("load 2 - elements"); GL.GenBuffers(1, out ELementBufferObjectID); GL.BindBuffer(BufferTarget.ElementArrayBuffer, ELementBufferObjectID); GL.BufferData(BufferTarget.ElementArrayBuffer, (IntPtr)(elements.Length * sizeof(uint)), elements, BufferUsageHint.StaticDraw); GL.GetBufferParameter(BufferTarget.ElementArrayBuffer, BufferParameterName.BufferSize, out size); if (elements.Length * sizeof(uint) != size) { throw new ApplicationException("Element data not uploaded correctly"); } else { size = 0; Console.WriteLine("load 2 finished ok"); } GL.GenBuffers(1, out normalVBOID); GL.BindBuffer(BufferTarget.ArrayBuffer, normalVBOID); Console.WriteLine("load 3 - normals"); normalVBOStride = BlittableValueType.StrideOf(normalsArray); GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(normalsArray.Length * sizeof(float)), normalsArray, BufferUsageHint.StaticDraw); GL.GetBufferParameter(BufferTarget.ArrayBuffer, BufferParameterName.BufferSize, out size); Console.WriteLine("load 3 - pre check"); if (normalsArray.Length * BlittableValueType.StrideOf(normalsArray) != size) { throw new ApplicationException("Normal data not uploaded correctly"); } else { Console.WriteLine("load 3 finished ok"); size = 0; } GL.GenBuffers(1, out textureCoordinateVBOID); GL.BindBuffer(BufferTarget.ArrayBuffer, textureCoordinateVBOID); Console.WriteLine("load 4- texture coordinates"); textureCoordinateVBOStride = BlittableValueType.StrideOf(textureCoordinateArray); GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(textureCoordinateArray.Length * textureCoordinateVBOStride), textureCoordinateArray, BufferUsageHint.StaticDraw); GL.GetBufferParameter(BufferTarget.ArrayBuffer, BufferParameterName.BufferSize, out size); if (textureCoordinateArray.Length * BlittableValueType.StrideOf(textureCoordinateArray) != size) { throw new ApplicationException("texture coordinate data not uploaded correctly"); } else { Console.WriteLine("load 3 finished ok"); size = 0; } } //used to convert vertex arrayss for use with VBO's private float[] convertVector3fListToFloatArray(IList<Vector3> input) { int arrayElementCount = input.Count * 3; float[] output = new float[arrayElementCount]; int fillCount = 0; foreach (Vector3 v in input) { output[fillCount] = v.X; output[fillCount + 1] = v.Y; output[fillCount + 2] = v.Z; fillCount += 3; } return output; } //used for converting texture coordinate arrays for use with VBO's private float[] convertVector2List_to_floatArray(IList<Vector2> input) { int arrayElementCount = input.Count * 2; float[] output = new float[arrayElementCount]; int fillCount = 0; foreach (Vector2 v in input) { output[fillCount] = v.X; output[fillCount + 1] = v.Y; fillCount += 2; } return output; } //used to create an array of floats from private float[] createFloatArrayFromListOfVector3ElementsAndIndices(IList<Vector3> inputVectors, IList<uint> indices) { int arrayElementCount = inputVectors.Count * indices.Count * 3; float[] output = new float[arrayElementCount]; int fillCount = 0; foreach (int i in indices) { output[fillCount] = inputVectors[i].X; output[fillCount + 1] = inputVectors[i].Y; output[fillCount + 2] = inputVectors[i].Z; fillCount += 3; } return output; } private float[] createFloatArrayFromListOfVector2ElementsAndIndices(IList<Vector2> inputVectors, IList<uint> indices) { int arrayElementCount = inputVectors.Count * indices.Count * 2; float[] output = new float[arrayElementCount]; int fillCount = 0; foreach (int i in indices) { output[fillCount] = inputVectors[i].X; output[fillCount + 1] = inputVectors[i].Y; fillCount += 2; } return output; } } } This code will only render two triangles and they're nothing like I had in mind: I've done some searching. In some other questions I read that, if I did something wrong, I'd get no rendering at all. Clearly, something gets sent to the GFX card, but it might be that I'm not sending the right data. I've tried altering the sequence in which the triangles are rendered by swapping some of the index numbers in the vert, tc and normal index arrays, but this doesn't seem to be of any effect. I'm slightly lost here. What am I doing wrong here?

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??????«latch free:cache buffer handles???SQL????»?????cache buffer handle latch?????,?????????: “?????pin?buffer header???????buffer handle,??buffer handle?????????cache buffer handles?,??????cache buffer handles??????,???????cache???buffer handles,?????(reserved set)?????????????_db_handles_cached(???5)???,?????????????????SQL??????????????????????,????pin??????,????????handle,?????????5?cached buffer handles???handle????????????????,Oracle?????????????????pin?”????“?buffer,????????????????handle???db_block_buffers/processes,????_cursor_db_buffers_pinned???????cache buffer handles?????,??????,????????????SQL,????cache?buffer handles?????????,??????????????,???????????/?????” ????T.ASKMACLEAN.COM????,??????cache Buffer handle?????: cache buffer handle ??: ------------------------------ | Buffer state object | ------------------------------ | Place to hang the buffer | ------------------------------ | Consistent Get? | ------------------------------ | Proc Owning SO | ------------------------------ | Flags(RIR) | ------------------------------ ???? cache buffer handle SO: 70000046fdfe530, type: 24, owner: 70000041b018630, flag: INIT/-/-/0×00(buffer) (CR) PR: 70000048e92d148 FLG: 0×500000lock rls: 0, class bit: 0kcbbfbp: [BH: 7000001c7f069b0, LINK: 70000046fdfe570]where: kdswh02: kdsgrp, why: 0BH (7000001c7f069b0) file#: 12 rdba: 0×03061612 (12/398866) class: 1 ba: 7000001c70ee000set: 75 blksize: 8192 bsi: 0 set-flg: 0 pwbcnt: 0dbwrid: 2 obj: 66209 objn: 48710 tsn: 6 afn: 12hash: [700000485f12138,700000485f12138] lru: [70000025af67790,700000132f69ee0]lru-flags: hot_bufferckptq: [NULL] fileq: [NULL] objq: [700000114f5dd10,70000028bf5d620]use: [70000046fdfe570,70000046fdfe570] wait: [NULL]st: SCURRENT md: SHR tch: 0flags: affinity_lockLRBA: [0x0.0.0] HSCN: [0xffff.ffffffff] HSUB: [65535]where: kdswh02: kdsgrp, why: 0 # Example:# (buffer) (CR) PR: 37290 FLG: 0# kcbbfbp : [BH: befd8, LINK: 7836c] (WAITING) Buffer handle (X$KCBBF) kernel cache, buffer buffer_handles Query x$kcbbf – lists all the buffer handles ???? _db_handles System-wide simultaneous buffer operations ,no of buffer handles_db_handles_cached Buffer handles cached each process , no of processes default 5_cursor_db_buffers_pinned additional number of buffers a cursor can pin at once_session_kept_cursor_pins Number of cursors pins to keep in a session When a buffer is pinned it is attached to buffer state object. ??? ???????? cache buffer handles latch ? buffer pin???: SESSION A : SQL> select * from v$version; BANNER ---------------------------------------------------------------- Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bi PL/SQL Release 10.2.0.5.0 - Production CORE 10.2.0.5.0 Production TNS for Linux: Version 10.2.0.5.0 - Production NLSRTL Version 10.2.0.5.0 - Production SQL> create table test_cbc_handle(t1 int); Table created. SQL> insert into test_cbc_handle values(1); 1 row created. SQL> commit; Commit complete. SQL> select rowid from test_cbc_handle; ROWID ------------------ AAANO6AABAAAQZSAAA SQL> select * from test_cbc_handle where rowid='AAANO6AABAAAQZSAAA'; T1 ---------- 1 SQL> select addr,name from v$latch_parent where name='cache buffer handles'; ADDR NAME ---------------- -------------------------------------------------- 00000000600140A8 cache buffer handles SQL> select to_number('00000000600140A8','xxxxxxxxxxxxxxxxxxxx') from dual; TO_NUMBER('00000000600140A8','XXXXXXXXXXXXXXXXXXXX') ---------------------------------------------------- 1610694824 ??cache buffer handles????parent latch ??? child latch ???SESSION A hold ??????cache buffer handles parent latch ???? oradebug call kslgetl ??, kslgetl?oracle??get latch??? SQL> oradebug setmypid; Statement processed. SQL> oradebug call kslgetl 1610694824 1; Function returned 1 ?????SESSION B ???: SQL> select * from v$latchholder; PID SID LADDR NAME GETS ---------- ---------- ---------------- ---------------------------------------------------------------- ---------- 15 141 00000000600140A8 cache buffer handles 119 cache buffer handles latch ???session A hold??,????????acquire cache buffer handle latch SQL> select * from test_cbc_handle where rowid='AAANO6AABAAAQZSAAA'; T1 ---------- 1 ?????Server Process?????? read buffer, ????????"_db_handles_cached", ??process?cache 5? cache buffer handle ??"_db_handles_cached"=0,?process????5????cache buffer handle , ???? process ???pin buffer,???hold cache buffer handle latch??????cache buffer handle SQL> alter system set "_db_handles_cached"=0 scope=spfile; System altered. ????? shutdown immediate; startup; session A: SQL> oradebug setmypid; Statement processed. SQL> oradebug call kslgetl 1610694824 1; Function returned 1 session B: select * from test_cbc_handle where rowid='AAANO6AABAAAQZSAAA'; session B hang!! WHY? SQL> oradebug setmypid; Statement processed. SQL> oradebug dump systemstate 266; Statement processed. SO: 0x11b30b7b0, type: 2, owner: (nil), flag: INIT/-/-/0x00 (process) Oracle pid=22, calls cur/top: (nil)/0x11b453c38, flag: (0) - int error: 0, call error: 0, sess error: 0, txn error 0 (post info) last post received: 0 0 0 last post received-location: No post last process to post me: none last post sent: 0 0 0 last post sent-location: No post last process posted by me: none (latch info) wait_event=0 bits=8 holding (efd=4) 600140a8 cache buffer handles level=3 SO: 0x11b305810, type: 2, owner: (nil), flag: INIT/-/-/0x00 (process) Oracle pid=10, calls cur/top: 0x11b455ac0/0x11b450a58, flag: (0) - int error: 0, call error: 0, sess error: 0, txn error 0 (post info) last post received: 0 0 0 last post received-location: No post last process to post me: none last post sent: 0 0 0 last post sent-location: No post last process posted by me: none (latch info) wait_event=0 bits=2 Location from where call was made: kcbzgs: waiting for 600140a8 cache buffer handles level=3 FBD93353:000019F0 10 162 10005 1 KSL WAIT BEG [latch: cache buffer handles] 1610694824/0x600140a8 125/0x7d 0/0x0 FF936584:00002761 10 144 10005 1 KSL WAIT BEG [latch: cache buffer handles] 1610694824/0x600140a8 125/0x7d 0/0x0 PID=22 holding ??cache buffer handles latch PID=10 ?? cache buffer handles latch, ????"_db_handles_cached"=0 ?? process??????cache buffer handles ??systemstate???? kcbbfbp cache buffer handle??, ?? "_db_handles_cached"=0 ? cache buffer handles latch?hold ?? ????cache buffer handles latch , ??? buffer?pin?????????? session A exit session B: SQL> select * from v$latchholder; no rows selected SQL> insert into test_cbc_handle values(2); 1 row created. SQL> commit; Commit complete. SQL> SQL> select t1,rowid from test_cbc_handle; T1 ROWID ---------- ------------------ 1 AAANPAAABAAAQZSAAA 2 AAANPAAABAAAQZSAAB SQL> select spid,pid from v$process where addr = ( select paddr from v$session where sid=(select distinct sid from v$mystat)); SPID PID ------------ ---------- 19251 10 ? GDB ? SPID=19215 ?debug , ?? kcbrls ????breakpoint ??? ????release buffer [oracle@vrh8 ~]$ gdb $ORACLE_HOME/bin/oracle 19251 GNU gdb (GDB) Red Hat Enterprise Linux (7.0.1-37.el5) Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /s01/oracle/product/10.2.0.5/db_1/bin/oracle...(no debugging symbols found)...done. Attaching to program: /s01/oracle/product/10.2.0.5/db_1/bin/oracle, process 19251 Reading symbols from /s01/oracle/product/10.2.0.5/db_1/lib/libskgxp10.so...(no debugging symbols found)...done. Loaded symbols for /s01/oracle/product/10.2.0.5/db_1/lib/libskgxp10.so Reading symbols from /s01/oracle/product/10.2.0.5/db_1/lib/libhasgen10.so...(no debugging symbols found)...done. Loaded symbols for /s01/oracle/product/10.2.0.5/db_1/lib/libhasgen10.so Reading symbols from /s01/oracle/product/10.2.0.5/db_1/lib/libskgxn2.so...(no debugging symbols found)...done. Loaded symbols for /s01/oracle/product/10.2.0.5/db_1/lib/libskgxn2.so Reading symbols from /s01/oracle/product/10.2.0.5/db_1/lib/libocr10.so...(no debugging symbols found)...done. Loaded symbols for /s01/oracle/product/10.2.0.5/db_1/lib/libocr10.so Reading symbols from /s01/oracle/product/10.2.0.5/db_1/lib/libocrb10.so...(no debugging symbols found)...done. Loaded symbols for /s01/oracle/product/10.2.0.5/db_1/lib/libocrb10.so Reading symbols from /s01/oracle/product/10.2.0.5/db_1/lib/libocrutl10.so...(no debugging symbols found)...done. Loaded symbols for /s01/oracle/product/10.2.0.5/db_1/lib/libocrutl10.so Reading symbols from /s01/oracle/product/10.2.0.5/db_1/lib/libjox10.so...(no debugging symbols found)...done. Loaded symbols for /s01/oracle/product/10.2.0.5/db_1/lib/libjox10.so Reading symbols from /s01/oracle/product/10.2.0.5/db_1/lib/libclsra10.so...(no debugging symbols found)...done. Loaded symbols for /s01/oracle/product/10.2.0.5/db_1/lib/libclsra10.so Reading symbols from /s01/oracle/product/10.2.0.5/db_1/lib/libdbcfg10.so...(no debugging symbols found)...done. Loaded symbols for /s01/oracle/product/10.2.0.5/db_1/lib/libdbcfg10.so Reading symbols from /s01/oracle/product/10.2.0.5/db_1/lib/libnnz10.so...(no debugging symbols found)...done. Loaded symbols for /s01/oracle/product/10.2.0.5/db_1/lib/libnnz10.so Reading symbols from /usr/lib64/libaio.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib64/libaio.so.1 Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done. Loaded symbols for /lib64/libdl.so.2 Reading symbols from /lib64/libm.so.6...(no debugging symbols found)...done. Loaded symbols for /lib64/libm.so.6 Reading symbols from /lib64/libpthread.so.0...(no debugging symbols found)...done. [Thread debugging using libthread_db enabled] Loaded symbols for /lib64/libpthread.so.0 Reading symbols from /lib64/libnsl.so.1...(no debugging symbols found)...done. Loaded symbols for /lib64/libnsl.so.1 Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib64/libc.so.6 Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done. Loaded symbols for /lib64/ld-linux-x86-64.so.2 Reading symbols from /lib64/libnss_files.so.2...(no debugging symbols found)...done. Loaded symbols for /lib64/libnss_files.so.2 0x00000035c000d940 in __read_nocancel () from /lib64/libpthread.so.0 (gdb) break kcbrls Breakpoint 1 at 0x10e5d24 session B: select * from test_cbc_handle where rowid='AAANPAAABAAAQZSAAA'; select hang !! GDB (gdb) c Continuing. Breakpoint 1, 0x00000000010e5d24 in kcbrls () (gdb) bt #0 0x00000000010e5d24 in kcbrls () #1 0x0000000002e87d25 in qertbFetchByUserRowID () #2 0x00000000030c62b8 in opifch2 () #3 0x00000000032327f0 in kpoal8 () #4 0x00000000013b7c10 in opiodr () #5 0x0000000003c3c9da in ttcpip () #6 0x00000000013b3144 in opitsk () #7 0x00000000013b60ec in opiino () #8 0x00000000013b7c10 in opiodr () #9 0x00000000013a92f8 in opidrv () #10 0x0000000001fa3936 in sou2o () #11 0x000000000072d40b in opimai_real () #12 0x000000000072d35c in main () SQL> oradebug setmypid; Statement processed. SQL> oradebug dump systemstate 266; Statement processed. ?????? kcbbfbp buffer cache handle ? SO state object ? BH BUFFER HEADER link??? ---------------------------------------- SO: 0x11b452348, type: 3, owner: 0x11b305810, flag: INIT/-/-/0x00 (call) sess: cur 11b41bd18, rec 0, usr 11b41bd18; depth: 0 ---------------------------------------- SO: 0x1182dc750, type: 24, owner: 0x11b452348, flag: INIT/-/-/0x00 (buffer) (CR) PR: 0x11b305810 FLG: 0x108000 class bit: (nil) kcbbfbp: [BH: 0xf2fc69f8, LINK: 0x1182dc790] where: kdswh05: kdsgrp, why: 0 BH (0xf2fc69f8) file#: 1 rdba: 0x00410652 (1/67154) class: 1 ba: 0xf297c000 set: 3 blksize: 8192 bsi: 0 set-flg: 2 pwbcnt: 272 dbwrid: 0 obj: 54208 objn: 54202 tsn: 0 afn: 1 hash: [f2fc47f8,1181f3038] lru: [f2fc6b88,f2fc6968] obj-flags: object_ckpt_list ckptq: [1182ecf38,1182ecf38] fileq: [1182ecf58,1182ecf58] objq: [108712a28,108712a28] use: [1182dc790,1182dc790] wait: [NULL] st: XCURRENT md: SHR tch: 12 flags: buffer_dirty gotten_in_current_mode block_written_once redo_since_read LRBA: [0xc7.73b.0] HSCN: [0x0.1cbe52] HSUB: [1] Using State Objects ---------------------------------------- SO: 0x1182dc750, type: 24, owner: 0x11b452348, flag: INIT/-/-/0x00 (buffer) (CR) PR: 0x11b305810 FLG: 0x108000 class bit: (nil) kcbbfbp: [BH: 0xf2fc69f8, LINK: 0x1182dc790] where: kdswh05: kdsgrp, why: 0 buffer tsn: 0 rdba: 0x00410652 (1/67154) scn: 0x0000.001cbe52 seq: 0x01 flg: 0x02 tail: 0xbe520601 frmt: 0x02 chkval: 0x0000 type: 0x06=trans data tab 0, row 0, @0x1f9a tl: 6 fb: --H-FL-- lb: 0x0 cc: 1 col 0: [ 2] c1 02 tab 0, row 1, @0x1f94 tl: 6 fb: --H-FL-- lb: 0x2 cc: 1 col 0: [ 2] c1 15 end_of_block_dump (buffer) (CR) PR: 0x11b305810 FLG: 0x108000 st: XCURRENT md: SHR tch: 12 ? buffer header?status= XCURRENT mode=KCBMSHARE KCBMSHR current share ????? x$kcbbf ????? cache buffer handle SQL> select distinct KCBBPBH from x$kcbbf ; KCBBPBH ---------------- 00 00000000F2FC69F8 ==>0xf2fc69f8 SQL> select * from x$kcbbf where kcbbpbh='00000000F2FC69F8'; ADDR INDX INST_ID KCBBFSO_TYP KCBBFSO_FLG KCBBFSO_OWN ---------------- ---------- ---------- ----------- ----------- ---------------- KCBBFFLG KCBBFCR KCBBFCM KCBBFMBR KCBBPBH ---------- ---------- ---------- ---------------- ---------------- KCBBPBF X0KCBBPBH X0KCBBPBF X1KCBBPBH ---------------- ---------------- ---------------- ---------------- X1KCBBPBF KCBBFBH KCBBFWHR KCBBFWHY ---------------- ---------------- ---------- ---------- 00000001182DC750 748 1 24 1 000000011B452348 1081344 1 0 00 00000000F2FC69F8 00000001182DC750 00 00000001182DC750 00 00000001182DC7F8 00 583 0 SQL> desc x$kcbbf; Name Null? Type ----------------------------------------- -------- ---------------------------- ADDR RAW(8) INDX NUMBER INST_ID NUMBER KCBBFSO_TYP NUMBER KCBBFSO_FLG NUMBER KCBBFSO_OWN RAW(8) KCBBFFLG NUMBER KCBBFCR NUMBER KCBBFCM NUMBER KCBBFMBR RAW(8) KCBBPBH RAW(8) KCBBPBF RAW(8) X0KCBBPBH RAW(8) X0KCBBPBF RAW(8) X1KCBBPBH RAW(8) X1KCBBPBF RAW(8) KCBBFBH RAW(8) KCBBFWHR NUMBER KCBBFWHY NUMBER gdb ?? ?process??????kcbrls release buffer? ???cache buffer handle??? SQL> select distinct KCBBPBH from x$kcbbf ; KCBBPBH ---------------- 00

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