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• Is it okay to rely on javascript for menu layout?

  - by Ryan

  I have a website template where I do not know the number of menu items or the size of the menu items that will be required. The js below works exactly the way I want it to, however this is the most js I've every written. Are there any disadvantages or potential problems with this method that I'm not aware of because I'm a js beginner? I'm currently manually setting the padding for each site. Thank you! var width_of_text = 0; var number_of_li = 0; // measure the width of each <li> and add it to the total with, increment li counter $('li').each(function() { width_of_text += $(this).width(); number_of_li++; }); // calculate the space between <li>'s so the space is equal var padding = Math.floor((900 - width_of_text)/(number_of_li - 1)); // add the padding the all but the first <li> $('li').each(function(index) { if (index !== 0) { $(this).css("padding-left", padding); } });

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• Automatic adition of `using` in CodeRush.

  - by drasto

  I just installed CodeRush Pro (evaluation trial) for Visual Studio and I can say I like it much so far. Comparing to Resharper there is only one type of feature I'm really missing. It is the way CodeRush deals with using. When I type some class name that is not declared in some package listed in using, CodeRush underlines it red as an error(what it is) but if I hover over it with cursor it does not offer me to add using, it merely says it is "Undeclared element". I have to use VS default using addition (move caret to the identifier, hover cursor over that really small box that appears under first letter, click the button that appears and choose for example using System form a drop down menu). Is there a way how to configure CodeRush to offer mi add using when I hover a cursor over highlighted "issue"(that says Undeclared element)? The second part of this is that Resharper has somethink called Type name completion. It some improved intellisense. Lets say you have no using declaration in your file. Then you type something like ICompar and press CTRL+SPACE. Of cause there will be no suggestions. But with Resharper you can press CTRL+ALT+SPACE and you get suggestions of all classes starting with ICompar even if they are not in using. When you choose one of them the correct using is automatically added for you. Is there a way to make CodeRush behave this way ?

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• SQL Server 2008 Prior String Extract

  - by Saidur Rahman

  I have strings like the ones below in a SQL column. I want to extract them as a Gigabyte amount in aggregate. Example: Original Column ---------> Expected Output from a TSQL function ------------------------------------------- $15 / 1GB 24m + Intern 120MB ----------> 1.12 GB $19.95 / 500MB + $49.95 / 9GB Blackberry -----> 9.5GB $174.95 Blackberry 24GB + $10 / 1GB Datapack ----> 25GB $79 / 6GB --> 6GB Null --> Null $20 Plan --> 0GB Note: for our purpose, 1000MB = 1 GB (not 1024). The pattern is numbers followed by GB/MB, usually they are combined like 1GB (without any space but may sometimes may contain a space, it is not particularly important if hard to implement for this exception). Sometimes there are up to three or four instances of GB/MB occurring in the same string which are usually separated by a + sign (see row 2 and 3 of my example above). I have seen how we extract the dollar values in one of the answers where numbers were followed by $ or extract all integers in a string but I don't want to extract the dollar values or all the integers in a string. I just want the sum of GB/MB in the string.

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• Need Help on JavaScript to Trim

  - by MacpaLtd

  I am facing some problems with my server space. The images are using all the space from the server, making it slow. As it is an eCommerce website, it cannot be slow or we lose customers. If I have the following: SKU's : ABC123-001 > catName > Phone ABC753-851 > catName > MAC AT1233-098 > catName > PC How can I use trim to make it the following: SKU's : 123 > catName > Phone 753 > catName > MAC 1233 > catName > PC Which I would use in the following script: <script type="text/javascript"> $(function(){ var sku = $("#ProductBreadcrumb ul li:last").text(); $(".ProductThumbImage img").attr('src','http://img.example.com/images/'+catName+'/'+sku+'.jpg'); }); </script> So, basically, the output for the picture link would be: http://img.example.com/images/phone/123.jpg http://img.example.com/images/mac/753.jpg http://img.example.com/images/pc/1233.jpg So yeah, first problem I have to face is.. How can I trim it? I am not familiar with JavaScript so any help would be really appreciated :D

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• How to add root node in the output method = text

  - by Akhil

  My sample input is <?xml version="1.0" encoding="UTF-8"?> <ns0:JDBC_RECEIVERDATA_MT_response xmlns:ns0="urn:parmalat.com.au:TESTSQL_REPLICATION"> <Statement_response> <response_1> <row> <XML_F52E2B61-18A1-11d1-B105-00805F49916B><![CDATA[<TransactionLog TID="1400" SeqNo="3337446" SQLTransaction="Insert into TankerLoads Values(141221,53,299,18,1,426148,6,&apos;Nov 19 2007 12:00AM&apos;,&apos;Dec 30 1899 12:59PM&apos;,3.00,20682,0,&apos;Zevo&apos;,&apos;Nov 19 2007 12:00AM&apos;,0)"/></row> <row> <XML_F52E2B61-18A1-11d1-B105-00805F49916B>um = 141221"/&gt;&lt;TransactionLog TID="1400" SeqNo="3337452" SQLTransaction="Insert into MilkPickups Values(790195,141221,0,&amp;apos;Nov 19 2007 12:00AM&amp;apos;,2433,&amp;apos;Nov 19 2007 12:00AM&amp;apos;,&amp;apos;Dec 30 1899 11:26AM&amp;apos;,3131,2.90)"/&gt; Like this I have mutiple records and my output should be like <root> <TransactionLog TID="1400" SeqNo="3337446" SQLTransaction="Insert into TankerLoads Values(141221,53,299,18,1,426148,6,'Nov 19 2007 12:00AM','Dec 30 1899 12:59PM',3.00,20682,0,'Zevo','Nov 19 2007 12:00AM',0)" /> <TransactionLog TID="1400" SeqNo="3337447" SQLTransaction="Update TankerLoads Set TankerNum = 53,DriverNum = 299,CarterNum = 18,MilkTypeNum = 1,SampleNum = 426148,ReceivalBayNum = 6,UnloadDate = 'Nov 19 2007 12:00AM',UnloadTime = 'Dec 30 1899 12:59PM',Temperature = 3.00,Volume = 20682,NetWeight = 0,WeighbridgeDocket = 'Zevo',LoadPickupDate = 'Nov 19 2007 12:00AM',IsValidated = 0 Where TankerLoadNum = 141221" /></root> AND I AM USING OUTPUT METHOD AS TEXT BECAUSE IF I USE XML THE TAG ARE REPLACED WITH &LT &GT WHICH I DONT MOREOVER IF YOU SEE THE ABOVE TWO ROWS THE LAST LINE IS HALF THE RECORD IS IN THE FIRST ROW AND CONTINUING THE OTHER HALF IN THE SECOND ROW SO i USED WHICH LEAVES SINGLE SPACE SO EVEN I DONT WANT THAT SINGLE SPACE..I HOPE I AM CLEAR IF NOT PLEASE LET ME KNOW I WILL ADD MORE COMMENTS..TPLEASE HELP ME OUT..THNKYOU

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• Swing Menu dimensions

  - by ikurtz

  Greetings. I am trying to learn Java and Swing (today is my first day). I have been able to set up a menu in my test application. but the items occupy very little space (they are narrow). How do I go about extendng the amount of space it uses? I am studying Teach Yourself Java 6 in 21 Days 5th Ed, Java Swing, 2nd Edition, 2002 and Teach Yourself Programming With Java In 24 Hours, 4th Edition (2005) but none of them shed any light on this issue. EDIT: Menu code: JMenu _Game = new JMenu("Game"); JMenuItem _New = new JMenuItem("New"); JMenuItem _Exit = new JMenuItem("Exit"); JMenu _Turn = new JMenu("Turn"); JMenuItem _Red = new JMenuItem("Red"); JMenuItem _Yellow = new JMenuItem("Yellow"); _Turn.add(_Red); _Turn.add(_Yellow); _Game.add(_New); _Game.addSeparator(); _Game.add(_Turn); _Game.addSeparator(); _Game.add(_Exit); JMenu _Help = new JMenu("Help"); JMenuItem _About = new JMenuItem("About"); _Help.add(_About); JMenuBar _MenuBar = new JMenuBar(); _MenuBar.add(_Game); _MenuBar.add(_Help); setJMenuBar(_MenuBar); EDIT: Solved! JMenuItem _New = new JMenuItem("New "); just add spaces as needed! simple.

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• Has anyone used ever Mangoslick from themeforest?

  - by bonesnatch

  I was assigned to integrate MangoSlick theme to our current admin panel, Its a jQuery, Slick(?) and Responsive template. First, let me explain how the API goes In the documentation, it only says this is the only way data-[options]=[value] Example: If I wanna make a progress bar I can use this format <div class="progress"> <div class="bar" data-title="[title]" data-value="[value]" data-max="[max]" data-format="[format string]"></div> </div> so filling-in values <div class="progress"> <div class="bar" data-title="Space" data-value="1285" data-max="5120" data-format="0,0 MB"></div> </div> I will have this as output Now, the main question is when I use jQuery attr() to change the attribute values for data-title, data-max, data-value and data-format. Why is it not working? <script> var jq = $.noConflict(); jq(document).ready(function(){ jq('#bokz').attr("data-title", "No Space"); }); </script> Using the script above and inspect element in chrome the values are changed but not in the progressbar Some of you may have some ideas on this? Any help/suggestion would be very much appreciated.

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• Inline horizontal spacer in HTML

  - by LeafStorm

  I am making a Web page with a slideshow, using the same technique used on http://zine.pocoo.org/. The person I'm making the site for wants the slideshow to be centered. However, some of the photos are portrait layout and some are landscape. (This was not my choice.) I need a position: absolute to get the li's containing the items in the right place, so centering them does not work. (At least, not by normal methods.) So, I thought that it might work to insert a 124-pixel "spacer" before the image on the portrait pictures. I tried it with a <span style="width: 124px;">&nbsp;</span>, but it only inserts a single space, not the full 124 pixels. The slideshow fades in and out OK, though, so I think that it would work if I could get the proper spacing. My question is this: does anyone know a way to have 124px of space inline in HTML (preferably without using images), or another way to center the pictures in the li items?

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• determining the starting speed for an accelerated animation (in flash/actionscript but it's a math question)

  - by vulkanino

  This question burns my brain. I have an object on a plane, but for the sake of simplicity let's work just on a single dimension, thus the object has a starting position xs. I know the ending position xe. The object has to move from starting to ending position with an accelerated (acceleration=a) movement. I know the velocity the object has to have at the ending position (=ve). In my special case the ending speed is zero, but of course I need a general formula. The only unknown is the starting velocity vs. The objects starts with vs in xs and ends with ve in xe, moving along a space x with an acceleration a in a time t. Since I'm working with flash, space is expressed in pixels, time is expressed in frames (but you can reason in terms of seconds, it's easy to convert knowing the frames-per-second). In the animation loop (think onEnterFrame) I compute the new velocity and the new position with (a=0.4 for example): vx *= a (same for vy) x += vx (same for y) I want the entire animation to last, say, 2 seconds, which at 30 fps is 60 frames. Now you know that in 60 frames my object has to move from xs to xe with a constant deceleration so that the ending speed is 0. How do I compute the starting speed vs? Maybe there's a simpler way to do this in Flash, but I am now interested in the math/physics behind this.

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• How to control div on hover:?

  - by AAA

  I found a way to change the background color of a menu option upon hover. However, when you hover an option, it takes up some wide space that moves all the other options to the right, its sort of annoying, i want to maintain a consistent space, so if i hover, only the color should change, not the option moving to the right. Sort of the way facebook has its menu options. Below is the code: <div id="menu"> <a href="/hello" id="option">home</a> <a href="/hello" id="option">profile</a> <a href="/hello" id="option">account</a> <a href="/hello" id="option">settings</a> <a href="/hello" id="option">extra</a> <a href="/hello" id="option">logout</a> </div> CSS: div#menu { margin-left: 630px; margin-top:-20px; } option { margin-left: 20px; } #option:hover{ background: #3F2327; padding: 10px; }

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• .Net file writing and string splitting issues

  - by sagar

  I have a requirement where the file should be split using a given character. Default splitting options are CRLF and LF In both these cases I am splitting the line by \r\n and \r respectively. Also I have requirement where any size of file should be processed. (Processing is basically inserting the given string in a file at given position). For this I am reading the file in chunk of 1024 bytes. Then I am applying the string.Split() method. Split() method gives options for ignoring white spaces and none. I have to add back these line break characters to the line. for this I am using a binary writer and I am writing the byte array to the new file. Issue:- 1) When line break is CRLF, and the split option is NONE, while spaces are also added in the splitted array. Second option is given (to ignore white spaces) CRLF works properly. 2)Bit ignoring white space option creates other problems, as I am reading the file byte by byte I can't ignore a white space. 3)When line break characters are other than default(e.g. '|', a null value is prepended to the resulting line. Can anybody give solution to my issues?

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• AngularJs ng-cloak Problems on large Pages

  - by Rick Strahl

  I’ve been working on a rather complex and large Angular page. Unlike a typical AngularJs SPA style ‘application’ this particular page is just that: a single page with a large amount of data on it that has to be visible all at once. The problem is that when this large page loads it flickers and displays template markup briefly before kicking into its actual content rendering. This is is what the Angular ng-cloak is supposed to address, but in this case I had no luck getting it to work properly. This application is a shop floor app where workers need to see all related information in one big screen view, so some of the benefits of Angular’s routing and view swapping features couldn’t be applied. Instead, we decided to have one very big view but lots of ng-controllers and directives to break out the logic for code separation. For code separation this works great – there are a number of small controllers that deal with their own individual and isolated application concerns. For HTML separation we used partial ASP.NET MVC Razor Views which made breaking out the HTML into manageable pieces super easy and made migration of this page from a previous server side Razor page much easier. We were also able to leverage most of our server side localization without a lot of  changes as a bonus. But as a result of this choice the initial HTML document that loads is rather large – even without any data loaded into it, resulting in a fairly large DOM tree that Angular must manage. Large Page and Angular Startup The problem on this particular page is that there’s quite a bit of markup – 35k’s worth of markup without any data loaded, in fact. It’s a large HTML page with a complex DOM tree. There are quite a lot of Angular {{ }} markup expressions in the document. Angular provides the ng-cloak directive to try and hide the element it cloaks so that you don’t see the flash of these markup expressions when the page initially loads before Angular has a chance to render the data into the markup expressions.<div id="mainContainer" class="mainContainer boxshadow" ng-app="app" ng-cloak> Note the ng-cloak attribute on this element, which here is an outer wrapper element of the most of this large page’s content. ng-cloak is supposed to prevent displaying the content below it, until Angular has taken control and is ready to render the data into the templates. Alas, with this large page the end result unfortunately is a brief flicker of un-rendered markup which looks like this: It’s brief, but plenty ugly – right?  And depending on the speed of the machine this flash gets more noticeable with slow machines that take longer to process the initial HTML DOM. ng-cloak Styles ng-cloak works by temporarily hiding the marked up element and it does this by essentially applying a style that does this:[ng\:cloak], [ng-cloak], [data-ng-cloak], [x-ng-cloak], .ng-cloak, .x-ng-cloak { display: none !important; } This style is inlined as part of AngularJs itself. If you looking at the angular.js source file you’ll find this at the very end of the file:!angular.$$csp() && angular.element(document) .find('head') .prepend('<style type="text/css">@charset "UTF-8";[ng\\:cloak],[ng-cloak],' + '[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,' + '.ng-hide{display:none !important;}ng\\:form{display:block;}' '.ng-animate-block-transitions{transition:0s all!important;-webkit-transition:0s all!important;}' + '</style>'); This is is meant to initially hide any elements that contain the ng-cloak attribute or one of the other Angular directive permutation markup. Unfortunately on this particular web page ng-cloak had no effect – I still see the flicker. Why doesn’t ng-cloak work? The problem is of course – timing. The problem is that Angular actually needs to get control of the page before it ever starts doing anything like process even the ng-cloak attribute (or style etc). Because this page is rather large (about 35k of non-data HTML) it takes a while for the DOM to actually plow through the HTML. With the Angular <script> tag defined at the bottom of the page after the HTML DOM content there’s a slight delay which causes the flicker. For smaller pages the initial DOM load/parse cycle is so fast that the markup never shows, but with larger content pages it may show and become an annoying problem. Workarounds There a number of simple ways around this issue and some of them are hinted on in the Angular documentation. Load Angular Sooner One obvious thing that would help with this is to load Angular at the top of the page  BEFORE the DOM loads and that would give it much earlier control. The old ng-cloak documentation actually recommended putting the Angular.js script into the header of the page (apparently this was recently removed), but generally it’s not a good practice to load scripts in the header for page load performance. This is especially true if you load other libraries like jQuery which should be loaded prior to loading Angular so it can use jQuery rather than its own jqLite subset. This is not something I normally would like to do and also something that I’d likely forget in the future and end up right back here :-). Use ng-include for Child Content Angular supports nesting of child templates via the ng-include directive which essentially delay loads HTML content. This helps by removing a lot of the template content out of the main page and so getting control to Angular a lot sooner in order to hide the markup template content. In the application in question, I realize that in hindsight it might have been smarter to break this page out with client side ng-include directives instead of MVC Razor partial views we used to break up the page sections. Razor partial views give that nice separation as well, but in the end Razor puts humpty dumpty (ie. the HTML) back together into a whole single and rather large HTML document. Razor provides the logical separation, but still results in a large physical result document. But Razor also ended up being helpful to have a few security related blocks handled via server side template logic that simply excludes certain parts of the UI the user is not allowed to see – something that you can’t really do with client side exclusion like ng-hide/ng-show – client side content is always there whereas on the server side you can simply not send it to the client. Another reason I’m not a huge fan of ng-include is that it adds another HTTP hit to a request as templates are loaded from the server dynamically as needed. Given that this page was already heavy with resources adding another 10 separate ng-include directives wouldn’t be beneficial :-) ng-include is a valid option if you start from scratch and partition your logic. Of course if you don’t have complex pages, having completely separate views that are swapped in as they are accessed are even better, but we didn’t have this option due to the information having to be on screen all at once. Avoid using {{ }}  Expressions The biggest issue that ng-cloak attempts to address isn’t so much displaying the original content – it’s displaying empty {{ }} markup expression tags that get embedded into content. It gives you the dreaded “now you see it, now you don’t” effect where you sometimes see three separate rendering states: Markup junk, empty views, then views filled with data. If we can remove {{ }} expressions from the page you remove most of the perceived double draw effect as you would effectively start with a blank form and go straight to a filled form. To do this you can forego {{ }}  expressions and replace them with ng-bind directives on DOM elements. For example you can turn:<div class="list-item-name listViewOrderNo"> <a href='#'>{{lineItem.MpsOrderNo}}</a> </div>into:<div class="list-item-name listViewOrderNo"> <a href="#" ng-bind="lineItem.MpsOrderNo"></a> </div> to get identical results but because the {{ }}  expression has been removed there’s no double draw effect for this element. Again, not a great solution. The {{ }} syntax sure reads cleaner and is more fluent to type IMHO. In some cases you may also not have an outer element to attach ng-bind to which then requires you to artificially inject DOM elements into the page. This is especially painful if you have several consecutive values like {{Firstname}} {{Lastname}} for example. It’s an option though especially if you think of this issue up front and you don’t have a ton of expressions to deal with. Add the ng-cloak Styles manually You can also explicitly define the .css styles that Angular injects via code manually in your application’s style sheet. By doing so the styles become immediately available and so are applied right when the page loads – no flicker. I use the minimal:[ng-cloak] { display: none !important; } which works for:<div id="mainContainer" class="mainContainer dialog boxshadow" ng-app="app" ng-cloak> If you use one of the other combinations add the other CSS selectors as well or use the full style shown earlier. Angular will still load its version of the ng-cloak styling but it overrides those settings later, but this will do the trick of hiding the content before that CSS is injected into the page. Adding the CSS in your own style sheet works well, and is IMHO by far the best option. The nuclear option: Hiding the Content manually Using the explicit CSS is the best choice, so the following shouldn’t ever be necessary. But I’ll mention it here as it gives some insight how you can hide/show content manually on load for other frameworks or in your own markup based templates. Before I figured out that I could explicitly embed the CSS style into the page, I had tried to figure out why ng-cloak wasn’t doing its job. After wasting an hour getting nowhere I finally decided to just manually hide and show the container. The idea is simple – initially hide the container, then show it once Angular has done its initial processing and removal of the template markup from the page. You can manually hide the content and make it visible after Angular has gotten control. To do this I used:<div id="mainContainer" class="mainContainer boxshadow" ng-app="app" style="display:none"> Notice the display: none style that explicitly hides the element initially on the page. Then once Angular has run its initialization and effectively processed the template markup on the page you can show the content. For Angular this ‘ready’ event is the app.run() function:app.run( function ($rootScope, $location, cellService) { $("#mainContainer").show(); … }); This effectively removes the display:none style and the content displays. By the time app.run() fires the DOM is ready to displayed with filled data or at least empty data – Angular has gotten control. Edge Case Clearly this is an edge case. In general the initial HTML pages tend to be reasonably sized and the load time for the HTML and Angular are fast enough that there’s no flicker between the rendering times. This only becomes an issue as the initial pages get rather large. Regardless – if you have an Angular application it’s probably a good idea to add the CSS style into your application’s CSS (or a common shared one) just to make sure that content is always hidden. You never know how slow of a browser somebody might be running and while your super fast dev machine might not show any flicker, grandma’s old XP box very well might…© Rick Strahl, West Wind Technologies, 2005-2014Posted in Angular  JavaScript  CSS  HTML   Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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• SOLVED Install MythTV & 11.10 on Lenovo S12 (Intel atom) with wireless

  - by keepitsimpleengineer

  This is how I installed Ubuntu 11.10 and MythTV client on my Lenovo S12 (Intel Atom) laptop and use it using WiFi (see additional notes at end). I did this because the upgrade from 11.04 bricked the laptop. Note that the partitions on the Lenovo standard disk were already in place for this installation. Also note that my LAN is setup for fixed IP addresses. Downloaded and burned 11.10 x86 Desktop Ubuntu CD Connected the power supply cord, LAN wire and the external DVD USB drive. Ran Windows XP and made sure performance level "Performance" was set and "Wireless" was enabled. Booted S12 from CD Disabled Networking from icon on upper left panel icon Edited Connections… "Wired connection 1" ? Set IP address, accepted default netmask and set gateway. Also set DNS server. Good idea to check "Connection Information" here to verify everything's O.K. Selected Install Ubuntu from the initial "Install" window Verified the three items were checked (required disk space available, plugged into a power source, & connected to the Internet) Selected Download updates while installing and third party software. Hit Continue… At wireless selected don't want to connect…WiFi…now. Continue… At Installation type, selected Something else. Continue… At partition tale, selected the ext4 Linux partition, set the mount point as "/", and marked for formatting. Here I selected the main disk (/sda) for installing the boot manager. Continue… Selected or verified my Time zone. Continue… Selected my keyboard layout. Continue… Filled in the who are you fields. Make sure password is required to sign in is checked. Continue… Chose a picture. Continue… I selected import no accounts. Continue… Wait as the Install creeps along. If your screen goes blank, tap the space bar ? apparently the screen saver/power plan does this. There are several progress bars. The longest was "Installing system", and it was the next to the last one. Installation Complete window appears, Restart Now… Wait as it stops, The screen blanks then the message "…remove…media…close tray…press enter" I just unplugged the USB DVD and hit enter… It was disheartening but the screen turned Ubuntu Purple-beige and nothing happened, so I help down the power key until it shut down, the pressed it again and the Grub Boot screen appeared. Select Ubuntu… 25.The screen went blank with the little flashing underscore cursor on it and the disk light would occasionally flash. I hit the enter key and eventuality Ubuntu started. After a somewhat long time the unity desktop appeared. 11.10, unlike earlier versions, retains the connection information. Check this by checking the network icon on the upper left applet panel. Here the touch-pad·mouse quit working and I had to reboot. It takes and extremely long time to boot, sometimes requiring several power off/ power on (cold boot). You can try to get the default network manager to work, but it might not, it didn't on mine for WiFi. Thanks to: Chris at URL here's what to do… disconnect your wired Internet connection. input your wireless information into network manager open a terminal (unity dash, top of icon totem, open, and make sure the ruler&pen icon on the bottom is selected, 2nd from left) type in "terminal". Might be a good idea to drag and drop the terminal icon to the terminal, it's easy to get rid of later. click to open a terminal, and type in: sudo rmmod acer_wmi && echo "blacklist acer_wmi" >> /etc/modprobe.d/blacklist.conf and hit enter. type in your password as asked. if you have correctly entered your WiFi information and you are near your AP, you should connect immediately if not, see the URL above ? you might need to replace "network manager" with "wicd" ? I did with 11.04. Update the new 11.10, in the upper left panel applet weird·gear icon is menu with a line about updating. It's the new way to invoke Update Manager. Your lenovo S12 (intel atom) should now run the new unity Ubuntu. Point your elbow at the ceiling and pat yourself on the back. Installing Mythbuntu Client 24.1 Open mythbuntu.org/repos (I urge you not to directly use Ubuntu Software Center for this) Install Mythbuntu Repos Save the file (in ~/Downloads, the default) Run the file ? it will update your repositories so that you will get the proper installation sources ? it will start Ubuntu Software Center to do this ? Click Install… You will need your password. Debconf window will open, select by making sure check mark is in the little box "Would you like to activate…". Forward… Which version? At the time of writing the current "Stable" version was 24.1, select 0.24.x… Forward… Read the message, then forward… Delete the downloaded file. Install synaptic (unity dash, top of icon totem, open, and make sure the ruler&pen icon on the bottom is selected, 2nd from left) type in "synaptic". Click on the synaptic icon. Ubuntu Software Center will open and allow you to install synaptic package manager. Open Synaptic (unity dash, top of icon totem, open, and make sure the ruler&pen icon on the bottom is selected, 2nd from left) type in "Synaptic". Might be a good idea to drag and drop the terminal icon to the terminal, it's easy to get rid of later. Run synaptic, read the intro, and close the intro window. Type in mythbuntu-control-centre in the Quick filter text box, and then select it "Mark for installation" by clicking on the box next to it's name. Marvel at the additional to be installed items, then select "?Mark"… At the top of the synaptic window click on the "? Apply" button. Marvel at the amount of stuff to be installed, the click on "Apply". When finished, close finished window and synaptic. Open mythbuntu-control-centre (unity dash, top of icon totem, open, and make sure the ruler&pen icon on the bottom is selected, 2nd from left) type in "mythbuntu". Might be a good idea to drag and drop the mythbuntu-control-centre icon to the terminal, it's easy to get rid of later. You can now configure and install the frontend. Go down the icon totem on the right side of the window and click as needed… System roles. ? No Backend, Desktop Frontend, and Ubuntu Desktop. Apply… & Apply changes… & Password… MySQL Configuration ? from backend ? Setup General Alt-N(ext) Alt-N(ext) Stetting Access Setup PIN code: ~~~~ Input Security key and click "Test Connection", if ?, then Apply… & Apply… {note: for some inexplicable reason, control centre hung on this, but when I restarted it, it was set properly} Graphics drivers, When I did this, only the Broadcom wireless driver showed up. I closed without doing anything. Services. I enabled SSH & Samba. Apply… & Apply… Repositories. Asked & Answered. MythExport. Pass, I believe it requires backend on the same system. Proprietary Codec Support. Check to enable, Apply… & Apply… System Updates. No action necessary, will be a part of the Ubuntu update mechanism. Themes and Artwork. For themes, I selected Enable/Update all. Apply… & Apply… Infrared & Startup behavior and Plugins. Defer until you know more. Close software centre. Open mythTV (unity dash, top of icon totem, open, and make sure the ruler&pen icon on the bottom is selected, 2nd from left) type in "mythTV". Might be a good idea to drag and drop the mythTV icon to the terminal, it's easy to get rid of later. Incorrect Group Membership. Fix this by clicking "Yes"… Log out/end. Do this by clicking "Yes"… For my Lenovo S12, I had to manually restart Ubuntu - and still with the very long restart…/no start/cold boot/reboot/pressing the shift key required Open mythTV (unity dash, top of icon totem, open, and make sure the ruler&pen icon on the bottom is selected, 2nd from left) type in "mythTV". Might be a good idea to drag and drop the mythTV icon to the terminal, it's easy to get rid of later. Will open with Select country & language. Do so. then get message with "No", hit "Ok" and arrive at the data base Configuration 1/2 screen. You will need your brackend password, from backend ? Setup General Database Configuration 1/2 Password:~? Enter this Hit Alt-n to go to the next page. Select "Use custom id…", then enter a custom ID, I use the machine's name. Hit finish, and MythTV should start up with all default settings. For the lenovo S12, the first thing you want to do is to set Playback profiles to "Normal". From Setup TV Settings Playback Alt-N(ext) Alt-N(ext) Playback Profiles (3/8) : Change Current Video Playback Profile to "Normal". You can fiddle with this setting later. For the lenovo S12, the second thing is to get the sound going. From Setup General Alt-N(ext) Alt-N(ext) Alt-N(ext) Audio System: The top of the screen is a button title "Scan for audio devices", move the highlight there and press the Space bar. Then Tab down to Audio Output Device: and left-right arrow until "ALSA:hw:Card=Intel,DEV=0" is selected. Then Alt-N(ext) until "Finish". Now you should have sound. You should now have MythTV working nicely on the Lenovo S12 Notes about wireless: Running Lenovo S12 on wireless is demanding on both power and WiFi connection. Best results will be obtained when running on power and wired connection. I run my S12 on wireless, actually two serial connections with two access points, something that is not easy to achieve. Here Mythbuntu client-server (in den) <? wireless link 1 <?office LAN? wireless link 2 <? Lenovo S12 Ubuntu 11.10 The office LAN is fixed IP behind an Untangle firewall router. There is another MythTV client on Ubuntu 10.10 computer in the office (which has always worked well). ProblemMythbuntu\Win7 client hangs with frozen frames, short segment of audio repeating. Hardware Rosewill RNX-G300EX IEEE 802.11b/g PCI Wireless Card on client-server 2 Linksys WRT54GL wireless broadband routers on LAN for link1 and link 2 WRT54GL FirmwareDD-WRT v24-sp2(07/22/09) voip set up to act as an access point. Note? many people advised this was an unworkable scheme, and in probably most cases it will be. Solution? Set up DD-WRT with the following Wireless settings… Basic Channel: Different fixed channels at least 4 difference, I use 6 & 11 Basic Sensitivity Range (ACK timing): 50 MAC filter use filter: Enable, Selected Permit only clients listed to access… Requires adding MAC addresses in "Edit MAC Filter List" This causes the 54GL's to ignore any but the listed MAC address, down side, no "guest" capability. Advanced Basic rate: All Advanced CTS Protection Mode: Off Advanced Frame Burst: Enable Advanced Max associate clients: 4 for client link 2, 1 for client-server link 1 Advanced AP isolation: Enable Advanced Preamble: Short Advanced Afterburner: On Advanced Wireless GUI access: Off Advanced WMM support: Off Other settings: default for supplied firmware. Why I suspect this worked? The 54GL Access Points's with the firmware's setting are set to handle a multiple client, wide area situation. With these mods I reconfigured them for a small area, few client situation, disabling Advanced WMM probably the most important. In addition, the client mythtv when used all other users of its access point are turned off except for a Skype phone. Also, the client-server is set up to allow other connections though it's LAN connection, and these are used to connect the TV and disc players, not used when client is being used.

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• Oracle Solaris: Zones on Shared Storage

  - by Jeff Victor

  Oracle Solaris 11.1 has several new features. At oracle.com you can find a detailed list. One of the significant new features, and the most significant new feature releated to Oracle Solaris Zones, is casually called "Zones on Shared Storage" or simply ZOSS (rhymes with "moss"). ZOSS offers much more flexibility because you can store Solaris Zones on shared storage (surprise!) so that you can perform quick and easy migration of a zone from one system to another. This blog entry describes and demonstrates the use of ZOSS. ZOSS provides complete support for a Solaris Zone that is stored on "shared storage." In this case, "shared storage" refers to fiber channel (FC) or iSCSI devices, although there is one lone exception that I will demonstrate soon. The primary intent is to enable you to store a zone on FC or iSCSI storage so that it can be migrated from one host computer to another much more easily and safely than in the past. With this blog entry, I wanted to make it easy for you to try this yourself. I couldn't assume that you have a SAN available - which is a good thing, because neither do I! What could I use, instead? [There he goes, foreshadowing again... -Ed.] Developing this entry reinforced the lesson that the solution to every lab problem is VirtualBox. Oracle VM VirtualBox (its formal name) helps here in a couple of important ways. It offers the ability to easily install multiple copies of Solaris as guests on top of any popular system (Microsoft Windows, MacOS, Solaris, Oracle Linux (and other Linuxes) etc.). It also offers the ability to create a separate virtual disk drive (VDI) that appears as a local hard disk to a guest. This virtual disk can be moved very easily from one guest to another. In other words, you can follow the steps below on a laptop or larger x86 system. Please note that the ability to use ZOSS to store a zone on a local disk is very useful for a lab environment, but not so useful for production. I do not suggest regularly moving disk drives among computers. In the method I describe below, that virtual hard disk will contain the zone that will be migrated among the (virtual) hosts. In production, you would use FC or iSCSI LUNs instead. The zonecfg(1M) man page details the syntax for each of the three types of devices. Why Migrate? Why is the migration of virtual servers important? Some of the most common reasons are: Moving a workload to a different computer so that the original computer can be turned off for extensive maintenance. Moving a workload to a larger system because the workload has outgrown its original system. If the workload runs in an environment (such as a Solaris Zone) that is stored on shared storage, you can restore the service of the workload on an alternate computer if the original computer has failed and will not reboot. You can simplify lifecycle management of a workload by developing it on a laptop, migrating it to a test platform when it's ready, and finally moving it to a production system. Concepts For ZOSS, the important new concept is named "rootzpool". You can read about it in the zonecfg(1M) man page, but here's the short version: it's the backing store (hard disk(s), or LUN(s)) that will be used to make a ZFS zpool - the zpool that will hold the zone. This zpool: contains the zone's Solaris content, i.e. the root file system does not contain any content not related to the zone can only be mounted by one Solaris instance at a time Method Overview Here is a brief list of the steps to create a zone on shared storage and migrate it. The next section shows the commands and output. You will need a host system with an x86 CPU (hopefully at least a couple of CPU cores), at least 2GB of RAM, and at least 25GB of free disk space. (The steps below will not actually use 25GB of disk space, but I don't want to lead you down a path that ends in a big sign that says "Your HDD is full. Good luck!") Configure the zone on both systems, specifying the rootzpool that both will use. The best way is to configure it on one system and then copy the output of "zonecfg export" to the other system to be used as input to zonecfg. This method reduces the chances of pilot error. (It is not necessary to configure the zone on both systems before creating it. You can configure this zone in multiple places, whenever you want, and migrate it to one of those places at any time - as long as those systems all have access to the shared storage.) Install the zone on one system, onto shared storage. Boot the zone. Provide system configuration information to the zone. (In the Real World(tm) you will usually automate this step.) Shutdown the zone. Detach the zone from the original system. Attach the zone to its new "home" system. Boot the zone. The zone can be used normally, and even migrated back, or to a different system. Details The rest of this shows the commands and output. The two hostnames are "sysA" and "sysB". Note that each Solaris guest might use a different device name for the VDI that they share. I used the device names shown below, but you must discover the device name(s) after booting each guest. In a production environment you would also discover the device name first and then configure the zone with that name. Fortunately, you can use the command "zpool import" or "format" to discover the device on the "new" host for the zone. The first steps create the VirtualBox guests and the shared disk drive. I describe the steps here without demonstrating them. Download VirtualBox and install it using a method normal for your host OS. You can read the complete instructions. Create two VirtualBox guests, each to run Solaris 11.1. Each will use its own VDI as its root disk. Install Solaris 11.1 in each guest.Install Solaris 11.1 in each guest. To install a Solaris 11.1 guest, you can either download a pre-built VirtualBox guest, and import it, or install Solaris 11.1 from the "text install" media. If you use the latter method, after booting you will not see a windowing system. To install the GUI and other important things, login and run "pkg install solaris-desktop" and take a break while it installs those important things. Life is usually easier if you install the VirtualBox Guest Additions because then you can copy and paste between the host and guests, etc. You can find the guest additions in the folder matching the version of VirtualBox you are using. You can also read the instructions for installing the guest additions. To create the zone's shared VDI in VirtualBox, you can open the storage configuration for one of the two guests, select the SATA controller, and click on the "Add Hard Disk" icon nearby. Choose "Create New Disk" and specify an appropriate path name for the file that will contain the VDI. The shared VDI must be at least 1.5 GB. Note that the guest must be stopped to do this. Add that VDI to the other guest - using its Storage configuration - so that each can access it while running. The steps start out the same, except that you choose "Choose Existing Disk" instead of "Create New Disk." Because the disk is configured on both of them, VirtualBox prevents you from running both guests at the same time. Identify device names of that VDI, in each of the guests. Solaris chooses the name based on existing devices. The names may be the same, or may be different from each other. This step is shown below as "Step 1." Assumptions In the example shown below, I make these assumptions. The guest that will own the zone at the beginning is named sysA. The guest that will own the zone after the first migration is named sysB. On sysA, the shared disk is named /dev/dsk/c7t2d0 On sysB, the shared disk is named /dev/dsk/c7t3d0 (Finally!) The Steps Step 1) Determine the name of the disk that will move back and forth between the systems. root@sysA:~# format Searching for disks...done AVAILABLE DISK SELECTIONS: 0. c7t0d0 /pci@0,0/pci8086,2829@d/disk@0,0 1. c7t2d0 /pci@0,0/pci8086,2829@d/disk@2,0 Specify disk (enter its number): ^D Step 2) The first thing to do is partition and label the disk. The magic needed to write an EFI label is not overly complicated. root@sysA:~# format -e c7t2d0 selecting c7t2d0 [disk formatted] FORMAT MENU: ... format fdisk No fdisk table exists. The default partition for the disk is: a 100% "SOLARIS System" partition Type "y" to accept the default partition, otherwise type "n" to edit the partition table. n SELECT ONE OF THE FOLLOWING: ... Enter Selection: 1 ... G=EFI_SYS 0=Exit? f SELECT ONE... ... 6 format label ... Specify Label type[1]: 1 Ready to label disk, continue? y format quit root@sysA:~# ls /dev/dsk/c7t2d0 /dev/dsk/c7t2d0 Step 3) Configure zone1 on sysA. root@sysA:~# zonecfg -z zone1 Use 'create' to begin configuring a new zone. zonecfg:zone1 create create: Using system default template 'SYSdefault' zonecfg:zone1 set zonename=zone1 zonecfg:zone1 set zonepath=/zones/zone1 zonecfg:zone1 add rootzpool zonecfg:zone1:rootzpool add storage dev:dsk/c7t2d0 zonecfg:zone1:rootzpool end zonecfg:zone1 exit root@sysA:~# oot@sysA:~# zonecfg -z zone1 info zonename: zone1 zonepath: /zones/zone1 brand: solaris autoboot: false bootargs: file-mac-profile: pool: limitpriv: scheduling-class: ip-type: exclusive hostid: fs-allowed: anet: ... rootzpool: storage: dev:dsk/c7t2d0 Step 4) Install the zone. This step takes the most time, but you can wander off for a snack or a few laps around the gym - or both! (Just not at the same time...) root@sysA:~# zoneadm -z zone1 install Created zone zpool: zone1_rpool Progress being logged to /var/log/zones/zoneadm.20121022T163634Z.zone1.install Image: Preparing at /zones/zone1/root. AI Manifest: /tmp/manifest.xml.RXaycg SC Profile: /usr/share/auto_install/sc_profiles/enable_sci.xml Zonename: zone1 Installation: Starting ... Creating IPS image Startup linked: 1/1 done Installing packages from: solaris origin: http://pkg.us.oracle.com/support/ DOWNLOAD PKGS FILES XFER (MB) SPEED Completed 183/183 33556/33556 222.2/222.2 2.8M/s PHASE ITEMS Installing new actions 46825/46825 Updating package state database Done Updating image state Done Creating fast lookup database Done Installation: Succeeded Note: Man pages can be obtained by installing pkg:/system/manual done. Done: Installation completed in 1696.847 seconds. Next Steps: Boot the zone, then log into the zone console (zlogin -C) to complete the configuration process. Log saved in non-global zone as /zones/zone1/root/var/log/zones/zoneadm.20121022T163634Z.zone1.install Step 5) Boot the Zone. root@sysA:~# zoneadm -z zone1 boot Step 6) Login to zone's console to complete the specification of system information. root@sysA:~# zlogin -C zone1 Answer the usual questions and wait for a login prompt. Then you can end the console session with the usual "~." incantation. Step 7) Shutdown the zone so it can be "moved." root@sysA:~# zoneadm -z zone1 shutdown Step 8) Detach the zone so that the original global zone can't use it. root@sysA:~# zoneadm list -cv ID NAME STATUS PATH BRAND IP 0 global running / solaris shared - zone1 installed /zones/zone1 solaris excl root@sysA:~# zpool list NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT rpool 17.6G 11.2G 6.47G 63% 1.00x ONLINE - zone1_rpool 1.98G 484M 1.51G 23% 1.00x ONLINE - root@sysA:~# zoneadm -z zone1 detach Exported zone zpool: zone1_rpool Step 9) Review the result and shutdown sysA so that sysB can use the shared disk. root@sysA:~# zpool list NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT rpool 17.6G 11.2G 6.47G 63% 1.00x ONLINE - root@sysA:~# zoneadm list -cv ID NAME STATUS PATH BRAND IP 0 global running / solaris shared - zone1 configured /zones/zone1 solaris excl root@sysA:~# init 0 Step 10) Now boot sysB and configure a zone with the parameters shown above in Step 1. (Again, the safest method is to use "zonecfg ... export" on sysA as described in section "Method Overview" above.) The one difference is the name of the rootzpool storage device, which was shown in the list of assumptions, and which you must determine by booting sysB and using the "format" or "zpool import" command. When that is done, you should see the output shown next. (I used the same zonename - "zone1" - in this example, but you can choose any valid zonename you want.) root@sysB:~# zoneadm list -cv ID NAME STATUS PATH BRAND IP 0 global running / solaris shared - zone1 configured /zones/zone1 solaris excl root@sysB:~# zonecfg -z zone1 info zonename: zone1 zonepath: /zones/zone1 brand: solaris autoboot: false bootargs: file-mac-profile: pool: limitpriv: scheduling-class: ip-type: exclusive hostid: fs-allowed: anet: linkname: net0 ... rootzpool: storage: dev:dsk/c7t3d0 Step 11) Attaching the zone automatically imports the zpool. root@sysB:~# zoneadm -z zone1 attach Imported zone zpool: zone1_rpool Progress being logged to /var/log/zones/zoneadm.20121022T184034Z.zone1.attach Installing: Using existing zone boot environment Zone BE root dataset: zone1_rpool/rpool/ROOT/solaris Cache: Using /var/pkg/publisher. Updating non-global zone: Linking to image /. Processing linked: 1/1 done Updating non-global zone: Auditing packages. No updates necessary for this image. Updating non-global zone: Zone updated. Result: Attach Succeeded. Log saved in non-global zone as /zones/zone1/root/var/log/zones/zoneadm.20121022T184034Z.zone1.attach root@sysB:~# zoneadm -z zone1 boot root@sysB:~# zlogin zone1 [Connected to zone 'zone1' pts/2] Oracle Corporation SunOS 5.11 11.1 September 2012 Step 12) Now let's migrate the zone back to sysA. Create a file in zone1 so we can verify it exists after we migrate the zone back, then begin migrating it back. root@zone1:~# ls /opt root@zone1:~# touch /opt/fileA root@zone1:~# ls -l /opt/fileA -rw-r--r-- 1 root root 0 Oct 22 14:47 /opt/fileA root@zone1:~# exit logout [Connection to zone 'zone1' pts/2 closed] root@sysB:~# zoneadm -z zone1 shutdown root@sysB:~# zoneadm -z zone1 detach Exported zone zpool: zone1_rpool root@sysB:~# init 0 Step 13) Back on sysA, check the status. Oracle Corporation SunOS 5.11 11.1 September 2012 root@sysA:~# zoneadm list -cv ID NAME STATUS PATH BRAND IP 0 global running / solaris shared - zone1 configured /zones/zone1 solaris excl root@sysA:~# zpool list NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT rpool 17.6G 11.2G 6.47G 63% 1.00x ONLINE - Step 14) Re-attach the zone back to sysA. root@sysA:~# zoneadm -z zone1 attach Imported zone zpool: zone1_rpool Progress being logged to /var/log/zones/zoneadm.20121022T190441Z.zone1.attach Installing: Using existing zone boot environment Zone BE root dataset: zone1_rpool/rpool/ROOT/solaris Cache: Using /var/pkg/publisher. Updating non-global zone: Linking to image /. Processing linked: 1/1 done Updating non-global zone: Auditing packages. No updates necessary for this image. Updating non-global zone: Zone updated. Result: Attach Succeeded. Log saved in non-global zone as /zones/zone1/root/var/log/zones/zoneadm.20121022T190441Z.zone1.attach root@sysA:~# zpool list NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT rpool 17.6G 11.2G 6.47G 63% 1.00x ONLINE - zone1_rpool 1.98G 491M 1.51G 24% 1.00x ONLINE - root@sysA:~# zoneadm -z zone1 boot root@sysA:~# zlogin zone1 [Connected to zone 'zone1' pts/2] Oracle Corporation SunOS 5.11 11.1 September 2012 root@zone1:~# zpool list NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT rpool 1.98G 538M 1.46G 26% 1.00x ONLINE - Step 15) Check for the file created on sysB, earlier. root@zone1:~# ls -l /opt total 1 -rw-r--r-- 1 root root 0 Oct 22 14:47 fileA Next Steps Here is a brief list of some of the fun things you can try next. Add space to the zone by adding a second storage device to the rootzpool. Make sure that you add it to the configurations of both zones! Create a new zone, specifying two disks in the rootzpool when you first configure the zone. When you install that zone, or clone it from another zone, zoneadm uses those two disks to create a mirrored pool. (Three disks will result in a three-way mirror, etc.) Conclusion Hopefully you have seen the ease with which you can now move Solaris Zones from one system to another.

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• CodePlex Daily Summary for Tuesday, November 29, 2011

  CodePlex Daily Summary for Tuesday, November 29, 2011Popular ReleasesMFCMAPI: November 2011 Release: Build: 15.0.0.1029 Full release notes at SGriffin's blog. If you just want to run the MFCMAPI or MrMAPI, get the executables. If you want to debug them, get the symbol files and the source. The 64 bit builds will only work on a machine with Outlook 2010 64 bit installed. All other machines should use the 32 bit builds, regardless of the operating system. Facebook BadgeWCF Community Site: WCF Web API Preview 6: Welcome to the sixth preview release of WCF Web API on Codeplex! Install WCF Web API Preview 6 using NuGet New Features/EnhancementsURL form encoding - Http request bodies sent as application/x-www-form-urlencoded can now deserialize into objects and participate in content negotiation. Custom OData entity keys - The ODataFormatter now supports custom conventions for determining which properties identify an entity key. [ServiceContract] is no longer required on the Web API class definiti...Devpad: 4.11: Whats new for Devpad 4.11: New Import Archive Improved Save Dialog Improved Replace Dialog Improved Go To Dialog Minor Bug Fix's, improvements and speed upsSubExtractor: Release 1021: Feature: Allow OcrMap.bin file to be placed in same directory as EXE Feature: Choose Subtitle dialog directory remembered while app is up Feature: Allow Save As when creating Subtitle files (initial directory is remembered) Feature: Allow resizing of all main window dialogs Fix: Issue Id #682 (Dynamically generating the expected baseline and top offsets for characters. This fixes the problem of manually entered characters not in character selector incorrectly being put on a different line or...Home Access Plus+: v7.7: v7.7.1128.2200Added: ShowTo Option on Resources Added: Basic Authentication Logon Method Added: Button on the Live Tracker page to clear logons in the database but not do a remote logoff Updated: jquery from v1.6.2 to v1.7.1 Fixed: Another attempt at fixing the SIMS import in the booking system Fixed: JSON Issues with the Setup Added: More DEBUG Events to the Event Log (note DEBUG not RELEASE) Added: Support for Week A Week B instead of Week 1 and Week 2 Updated: The My Files ...Diagnostics Tool for Microsoft Dynamics CRM 2011: CrmDiagTool2011 (5.1.27.82): NEW FEATURE: DevErrors flag is now accessible for remote server (need to be local admin to access web.config file through administrative share)CommonLibrary.NET: CommonLibrary.NET 0.9.8 - Alpha: A collection of very reusable code and components in C# 4.0 ranging from ActiveRecord, Csv, Command Line Parsing, Configuration, Holiday Calendars, Logging, Authentication, and much more. Samples in <root>\src\Lib\CommonLibrary.NET\Samples CommonLibrary.NET 0.9.8 AlphaNew Dynamic Scripting Language : workitem : 7493 Fixes 1622 6803Widget Suite for DotNetNuke: 01.04.00: The following features/enhancements are associated with this release: Bug: Removed the empty box/white space created by some widgets New Widget: FlexSlider New Widget: Google+ Button New Widget: Klout Badge Sample Widget Script FileFxCop Integrator for Visual Studio 2010: FxCop Integrator 2.0.0 RC: Replaced the MSBuild Tasks installer to fix the bug of the targets file. FxCop Integrator is not affected by this bug. (Nov 28 2011) New FeatureSupported calculating code metrics with Code Metrics PowerTool. (Work Item #6568: 6568). Provided MSBuild tasks. #7454: 7454 Supported to filter out auto-generated code from code analysis result. #7485: 7485 Supported exporting report of code analysis result. Supported multi-project analysis. Supported file level analysis. Added the featu...Terminals: Version 2 - Beta 4 Release: Beta 4 Refresh Build Dont forget to backup your config files BEFORE upgrading! As usual, please take time to use and abuse this release. We left logging in place, and this is a debug build so be sure to submit your logs on each bug reported, and please do report all bugs! Updated the About form to include the date and time of the build. Useful for CI builds to ensure we have the correct version "Favourites" and "History" save their expanded states after app restarts Code cleanup, secu...MiniTwitter: 1.76: MiniTwitter 1.76 ???? ?? ?????????? User Streams ???????????? User Streams ???????????、??????????????? REST ?????????? ?????????????????????????????? ??????????????????????????????Media Companion: MC 3.424b Weekly: Ensure .NET 4.0 Full Framework is installed. (Available from http://www.microsoft.com/download/en/details.aspx?id=17718) Ensure the NFO ID fix is applied when transitioning from versions prior to 3.416b. (Details here) Movie Show Resolutions... Resolved issue when reverting multiselection of movies to "-none-" Added movie rename support for subtitle files '.srt' & '.sub' Finalised code for '-1' fix - radiobutton to choose either filename or title Fixed issue with Movie Batch Wizard Fanart - ...Advanced Windows Phone Enginering Tool: WPE Downloads: This version of WPE gives you basic updating, restoring, and, erasing for your Windows Phone device.Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.37: Fix for issue #16936 - CSS strings containing ASP.NET replacement blocks that contain the same delimiter character(s) as the CSS string cause the CSS parser to barf. Need to use the -aspnet:1 flag to treat the ASP.NET blocks as single entities. Added support for CSS3 @keyframes syntax. Added NuGet package support to the DLL project. Expand the -line switch to also optionally specify the multiline/single line mode, and the spaces-per-tab for multiline mode. Tweak the -pretty switch to be more ...Anno 2070 Assistant: Beta v1.0 (STABLE): Anno 2070 Assistant Beta v1.0 Released! Features Included: Complete Building Layouts for Ecos, Tycoons & Techs Complete Production Chains for Ecos, Tycoons & Techs Completed Credits Screen Known Issues: Not all production chains and building layouts may be on the lists because they have not yet been discovered. However, data is still 99.9% complete. Currently the Supply & Demand, including Calculator screen are disabled until version 1.1.Oil Prices: Oil Prices V1.1: Oil Prices V1.1 Fix Bangchak price listTAXILISM: TAXILISM V1.0: TAXILISMExamine: v1.4 - Beta: A fairly mega release which borrows some behaviors from the currently under development v2.0 version, this means there are some breaking changes which are listed below, though I don't think these breaking changes will affect many. FeaturesUpgraded DLLs to .Net 4.0 runtime Azure support No more file queue, all asynchronous operations are handled by .Net 4.0's async Task scheduling system, this not only increases performance but better handles async operations. Running in async mode will...Minemapper: Minemapper v0.1.7: Including updated Minecraft Biome Extractor and mcmap to support the new Minecraft 1.0.0 release (new block types, etc).Visual Leak Detector for Visual C++ 2008/2010: v2.2.1: Enhancements: * strdup and _wcsdup functions support added. * Preliminary support for VS 11 added. Bugs Fixed: * Low performance after upgrading from VLD v2.1. * Memory leaks with static linking fixed (disabled calloc support). * Runtime error R6002 fixed because of wrong memory dump format. * version.h fixed in installer. * Some PVS studio warning fixed.New Projects.NET WindowsCe MVP Framework: .NET WindowsCe MVP Framework for .NET Compact Framework 2 or higherAndaman Alumini: AluminiSite for andaman studentsAudio Macro Recorder Plugin for Notepad++: kkkkCassandra .Net Provider: Cassandra .Net Provider is a project created to help .Net developers to start to work with Apache Cassandra. Under Cassandra .Net Provider project developers will find a client fully configurable, working with polled connection, where CQL commands can be executed.Code samples for deepcode.co.uk: Code samples to support articles posted on www.deepcode.co.ukContador de Caracteres: Contador de caracteres para Windows Phone 7Data Ductus Utilities: Simple utilities that other may find useful like mongo DataContract mapping etc.dIRC: dIRC is a cutting-edge .Net IRC client library written in C#.Distributed Blackboard: Distributed virtual drawing canvasFileSplit: FileSplit lets you split large files into smaller files for easier sharing and backup. After splitting the files, FileSplit also creates a .bat (batch) file that when clicked, automatically joins the split files into the original file. This is especially useful for those recipients who are not computer saavy.FlagSync: FlagSync is a synchronization and backup tool, which allows you to synchronize or backup your files with local folders (or an extern harddrive or flashdrive) and FTP-Servers, as well as synchronize your non-iPod MP3-Player with iTunes.Fodda: A small utility for downloading pictures and movies from Canon cameras to your computer. The transferred pictures and movies are placed in a directory structure based on the date of creation. E.g. My Pictures\2011\11\27_11_2011. It will probably work equally well with Cameras from other manufacturers.Google Authenticator TOTP C#: An implementation of Google's Authenticator in C# and WPF. It's a Time-based One-time Password (TOTP) described in RFC 6238. You could use it to implement two-factor authentication in your own .Net application.gppfree: gpp freeiOSApps: A collection of iOS appsLineSeriesDemo: LineSeriesDemolospacos23: klk NHash: This is a simple project that integrates with Explorer and Computes MD5 and SHA1.OpenGL Engine: Projekt pisany na projekt zespolowy.PolarConverter: Adjust the measured distance of HRM files created by Polar Heart Rate monitorsRASSUS - Sustav za dijeljenje fotografija: Sustav za dijeljenje fotografija - projekt studenata na fakultetu elektrotehnike i racunarstva.Space Monopoly: Space monopoly is the freeware game of buying and selling shares.StarCraft 2 ladder tiles for Windows Phone 7: StarCraft 2 ladder tiles for Windows Phone 7Validador de CPF/CNPJ: Validador Lógico de CPF ou CNPJ para Windows Phonever2web: Ver2web is an online Club management software developed for the course Webprogramming at Technikum Wien. It is programmed in C# using ASP.net MVC 3, Entity Framework 4.x and Unity 2.2. WPF Wizard Control: WPF user control (not a custom control) for generically hosting multiple-step wizards. Uses MVVM, you create the model and view for each step and optionally configure steps that guide the wizard along a different workflow.yankee-private-project: ??????????，????！

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• CodePlex Daily Summary for Sunday, February 06, 2011

  CodePlex Daily Summary for Sunday, February 06, 2011Popular ReleasesMVVM Light Toolkit: MVVM Light Toolkit V3 SP1 (4): There was a small issue with the previous release that caused errors when installing the templates in VS10 Express. This release corrects the error. Only use this if you encountered issues when installing the previous release. No changes in the binaries.Finestra Virtual Desktops: 1.0: Finally the version 1.0 release! Sorry for the long delay since the last release, but I think that you'll find this release to be really smooth, really stable, and a really great enhancement to Windows. New features include: Windows 7 taskbar integration Major performance and usability improvements Redesigned look and feel New name: Finestra Better automatic updating Much faster full-screen switcher Fixes Windows 7 hotkey collisions by default Updated installerEnhSim: EnhSim 2.3.4 ALPHA: 2.3.3 ALPHAThis release supports WoW patch 4.06 at level 85 To use this release, you must have the Microsoft Visual C++ 2010 Redistributable Package installed. This can be downloaded from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=A7B7A05E-6DE6-4D3A-A423-37BF0912DB84 To use the GUI you must have the .NET 4.0 Framework installed. This can be downloaded from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=9cfb2d51-5ff4-4491-b0e5-b386f32c0992 - Updated Unheeded ...Nuclex Framework: R1323: This release is a pure XNA 4.0 release that no longer includes any XNA 3.1 binaries or projects. All x86 assemblies have been compiled targeting the .NET 4.0 Client Profile. Requires either Visual C# 2010 Express or Visual Studio 2010, both with XNA Game Studio 4.0. 3rd party libraries needed to compile and run the source code are included, so everything will compile out of the box. Changes: - Thanks to a generous contribution by Adrian Tsai, the TrueType importer now accepts standard Windo...Community Forums NNTP bridge: Community Forums NNTP Bridge V43: Release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open source NNTP bridge. This release has added some features / bugfixes: Bugfix: Now supporting multi-line headers in all headers ;) / Thanks to Kai Schätzl for reporting this! Debug output optimized / Added a "Copy to clipboard" button in the debug windowFacebook C# SDK: 5.0.2 (BETA): PLEASE TAKE A FEW MINUTES TO GIVE US SOME FEEDBACK: Facebook C# SDK Survey This is third BETA release of the version 5 branch of the Facebook C# SDK. Remember this is a BETA build. Some things may change or not work exactly as planned. We are absolutely looking for feedback on this release to help us improve the final 5.X.X release. This release contains some breaking changes. Particularly with authentication. After spending time reviewing the trouble areas that people are having using th...ASP.NET MVC SiteMap provider: MvcSiteMapProvider 3.0.0 for MVC3: Using NuGet?MvcSiteMapProvider is also listed in the NuGet feed. Learn more... Like the project? Consider a donation!Donate via PayPal via PayPal. ChangelogTargeting ASP.NET MVC 3 and .NET 4.0 Additional UpdatePriority options for generating XML sitemaps Allow to specify target on SiteMapTitleAttribute One action with multiple routes and breadcrumbs Medium Trust optimizations Create SiteMapTitleAttribute for setting parent title IntelliSense for your sitemap with MvcSiteMapSchem...Rawr: Rawr 4.0.18 Beta: Rawr is now web-based. The link to use Rawr4 is: http://elitistjerks.com/rawr.phpThis is the Cataclysm Beta Release. More details can be found at the following link http://rawr.codeplex.com/Thread/View.aspx?ThreadId=237262 As of the 4.0.16 release, you can now also begin using the new Downloadable WPF version of Rawr!This is a pre-alpha release of the WPF version, there are likely to be a lot of issues. If you have a problem, please follow the Posting Guidelines and put it into the Issue Trac...patterns & practices SharePoint Guidance: SharePoint Guidance 2010 Hands On Lab: SharePoint Guidance 2010 Hands On Lab consists of six labs: one for logging, one for service location, and four for application setting manager. Each lab takes about 20 minutes to walk through. Each lab consists of a PDF document. You can go through the steps in the doc to create solution and then build/deploy the solution and run the lab. For those of you who wants to save the time, we included the final solution so you can just build/deploy the solution and run the lab.Value Injecter - object(s) to -> object mapper: 2.3: it lets you define your own convention-based matching algorithms (ValueInjections) in order to match up (inject) source values to destination values. inject from multiple sources in one InjectFrom added ConventionInjectionTweetSharp: TweetSharp v2.0.0.0 - Preview 10: Documentation for this release may be found at http://tweetsharp.codeplex.com/wikipage?title=UserGuide&referringTitle=Documentation. Note: This code is currently preview quality. Preview 9 ChangesAdded support for trends Added support for Silverlight 4 Elevated WP7 fixes Third Party Library VersionsHammock v1.1.7: http://hammock.codeplex.com Json.NET 4.0 Release 1: http://json.codeplex.comFacebook Graph Toolkit: Facebook Graph Toolkit 0.7: Version 0.7 updates (2 Feb 2011)new Facebook Graph objects: Link, Note, StatusMessage new publish features: status update, post with link attachment new Graph Api connections in User object: statuses, links, notes internal code path improvement on Api object bug fixed: extra "r" character appears for strings with "\r" symbols in Json Objects bug fixed: error when performing Postback to the same page Tutorial and documentation available at http://fbgraph.computerbeacon.netChemistry Add-in for Word: Chemistry Add-in for Word - Version 1.0: On February 1, 2011, we announced the availability of version 1 of the Chemistry Add-in for Word, as well as the assignment of the open source project to the Outercurve Foundation by Microsoft Research and the University of Cambridge. System RequirementsHardware RequirementsAny computer that can run Office 2007 or Office 2010. Software RequirementsYour computer must have the following software: Any version of Windows that can run Office 2007 or Office 2010, which includes Windows XP SP3 and...Minemapper: Minemapper v0.1.4: Updated mcmap, now supports new block types. Added a Worlds->'View Cache Folder' menu item.StyleCop for ReSharper: StyleCop for ReSharper 5.1.15005.000: Applied patch from rodpl for merging of stylecop setting files with settings in parent folder. Previous release: A considerable amount of work has gone into this release: Huge focus on performance around the violation scanning subsystem: - caching added to reduce IO operations around reading and merging of settings files - caching added to reduce creation of expensive objects Users should notice condsiderable perf boost and a decrease in memory usage. Bug Fixes: - StyleCop's new Objec...Minecraft Tools: Minecraft Topographical Survey 1.4: MTS requires version 4 of the .NET Framework - you must download it from Microsoft if you have not previously installed it. This version of MTS adds MCRegion support and fixes bugs that caused rendering to fail for some users. New in this version of MTS: Support for rendering worlds compressed with MCRegion Fixed rendering failure when encountering non-NBT files with the .dat extension Fixed rendering failure when encountering corrupt NBT files Minor GUI updates Note that the command...MVC Controls Toolkit: Mvc Controls Toolkit 0.8: Fixed the following bugs: *Variable name error in the jvascript file that prevented the use of the deleted item template of the Datagrid *Now after the changes applied to an item of the DataGrid are cancelled all input fields are reset to the very initial value they had. *Other minor bugs. Added: *This version is available both for MVC2, and MVC 3. The MVC 3 version has a release number of 0.85. This way one can install both version. *Client Validation support has been added to all control...Office Web.UI: Beta preview (Source): This is the first Beta. it includes full source code and all available controls. Some designers are not ready, and some features are not finalized allready (missing properties, draft styles) ThanksASP.net Ribbon: Version 2.2: This release brings some new controls (part of Office Web.UI). A few bugs are fixed and it includes the "auto resize" feature as you resize the window. (It can cause an infinite loop when the window is too reduced, it's why this release is not marked as "stable"). I will release more versions 2.3, 2.4... until V3 which will be the official launch of Office Web.UI. Both products will evolve at the same speed. Thanks.xUnit.net - Unit Testing for .NET: xUnit.net 1.7: xUnit.net release 1.7Build #1540 Important notes for Resharper users: Resharper support has been moved to the xUnit.net Contrib project. Important note for TestDriven.net users: If you are having issues running xUnit.net tests in TestDriven.net, especially on 64-bit Windows, we strongly recommend you upgrade to TD.NET version 3.0 or later. This release adds the following new features: Added support for ASP.NET MVC 3 Added Assert.Equal(double expected, double actual, int precision) Ad...New ProjectsADE: ADE cmsAlicia - Elastic LoadBalancer: Alicia is a HTTP & HTTPS LoadBalancer. It is meant to be put in front of a server cluster. It implements a simple round robin mechanism. The default ports used are 1) HTTP 10080 2) HTTPS 10443 3) Admin 10010CMake syntax highlighting for Visual Studio 2010: CMake (http://cmake.org) is a cross platform build tool that works just as well with Visual Studio as it does with Xcode or the gnu make environment. This project aims to add syntax highlighting for the CMake script language to Visual Studio 2010 and is written in C#. ConCatJS: ConCatJS is a simple application that is capable of recursively processing directories and concatenating the JavaScript files therein into a single file.FicusFactor Image Watermarking Plugin for Windows Live Photo Gallery: Simple plugin for Windows Live Photo Gallery that can be used for applying watermarks to images. Can configure text, font, and placement of watermarks.FlMML: FlMML is a actionscript 3.0 library. It is made for generating sounds with MML. GSMock: GSMock is a mocking utility for the Google Search Appliance. It enables search responses to be mocked for search requests. GUIMaLoRT: The GUI for the MaLoRT.HushDB: This is a simple relational database. Its main purpose is to help people improve the understanding of how RDBMS is implemented after taking the database cource in university.Medical Log: Crear un registro de consultas medicas que facilite la gestión de los pacientes y manejo de información por reportes. Medical Log facilita el uso de registros de pacientes a médicos para obtener mayor información y más rápida de sus pacientes. Desarrollado con WPF .NET 4.0 MetaMold: semantic data through dynamic objects: MetaMold is a library to simplify the manipulation of semantic data through the usage of dynamic objects and pluggable convention-based mappings.My First Facebook Application: This is devoted to my first Facebook application.Nintemulator: A single software solution that offers support for a wide array of nintendo consoles.Orchard Facebook Like Widget: This is the project for the Facebook Like Widget module for the Orchard Project.Peggle: Its 2d game developed in c++ using qt and box2d. it helps developers to understand how to use box2d and qt efficiently. Pet Shelter - ASP.NET MVC 3 Learning Experiment: A web site for pet shelter managers and simple users who try to find their own pets, or to adopt one. This project is basically an ASP.NET MVC 3 learning experiment so if you want to join please contact me. It is developed in .NET 4.0, specifically C#. Robot-One ITI Cesena: Programma e documentazione per il Robot-One, il robottone cingolato dell'ITI di Cesena. Running Portal: Portal of 100loopRunning SharePoint List Based 404 Handler: A SharePoint WSP that customises the 404 handler for a web application, allowing you to define how to handle missing page requests via a SharePoint list.SharpSerializer: SharpSerializer is an open source XML and binary serializer for .NET Framework, .NET Compact Framework and Silverlight. It was developed with C#. Actually SharpSerializer can serialize to Xml and to its own binary format.SocialTank: Fill up the tank with social stuff!SQL Space Map: SQL Space Map is a tool that lets you quickly and easily view the relative size of database objects on a map, so you can compare them visually. It helps identify large objects, objects with a high index/data ratio, and tables which may be growing more quickly than expected.Supernover framework: SAF( SuperNover Application Framework)ToolBlog: Space reserved for the ToolBlog, which is a study about a site/blog in ASP.NET MVC 3Useful C# Extensions and Code generator: Initially a private repository, I want to make my collection of extensions and a code generating framework public. XnaLoop: simple test of xna game loop

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• How to simulate inner join on very large files in java (without running out of memory)

  - by Constantin

  I am trying to simulate SQL joins using java and very large text files (INNER, RIGHT OUTER and LEFT OUTER). The files have already been sorted using an external sort routine. The issue I have is I am trying to find the most efficient way to deal with the INNER join part of the algorithm. Right now I am using two Lists to store the lines that have the same key and iterate through the set of lines in the right file once for every line in the left file (provided the keys still match). In other words, the join key is not unique in each file so would need to account for the Cartesian product situations ... left_01, 1 left_02, 1 right_01, 1 right_02, 1 right_03, 1 left_01 joins to right_01 using key 1 left_01 joins to right_02 using key 1 left_01 joins to right_03 using key 1 left_02 joins to right_01 using key 1 left_02 joins to right_02 using key 1 left_02 joins to right_03 using key 1 My concern is one of memory. I will run out of memory if i use the approach below but still want the inner join part to work fairly quickly. What is the best approach to deal with the INNER join part keeping in mind that these files may potentially be huge public class Joiner { private void join(BufferedReader left, BufferedReader right, BufferedWriter output) throws Throwable { BufferedReader _left = left; BufferedReader _right = right; BufferedWriter _output = output; Record _leftRecord; Record _rightRecord; _leftRecord = read(_left); _rightRecord = read(_right); while( _leftRecord != null && _rightRecord != null ) { if( _leftRecord.getKey() < _rightRecord.getKey() ) { write(_output, _leftRecord, null); _leftRecord = read(_left); } else if( _leftRecord.getKey() > _rightRecord.getKey() ) { write(_output, null, _rightRecord); _rightRecord = read(_right); } else { List<Record> leftList = new ArrayList<Record>(); List<Record> rightList = new ArrayList<Record>(); _leftRecord = readRecords(leftList, _leftRecord, _left); _rightRecord = readRecords(rightList, _rightRecord, _right); for( Record equalKeyLeftRecord : leftList ){ for( Record equalKeyRightRecord : rightList ){ write(_output, equalKeyLeftRecord, equalKeyRightRecord); } } } } if( _leftRecord != null ) { write(_output, _leftRecord, null); _leftRecord = read(_left); while(_leftRecord != null) { write(_output, _leftRecord, null); _leftRecord = read(_left); } } else { if( _rightRecord != null ) { write(_output, null, _rightRecord); _rightRecord = read(_right); while(_rightRecord != null) { write(_output, null, _rightRecord); _rightRecord = read(_right); } } } _left.close(); _right.close(); _output.flush(); _output.close(); } private Record read(BufferedReader reader) throws Throwable { Record record = null; String data = reader.readLine(); if( data != null ) { record = new Record(data.split("\t")); } return record; } private Record readRecords(List<Record> list, Record record, BufferedReader reader) throws Throwable { int key = record.getKey(); list.add(record); record = read(reader); while( record != null && record.getKey() == key) { list.add(record); record = read(reader); } return record; } private void write(BufferedWriter writer, Record left, Record right) throws Throwable { String leftKey = (left == null ? "null" : Integer.toString(left.getKey())); String leftData = (left == null ? "null" : left.getData()); String rightKey = (right == null ? "null" : Integer.toString(right.getKey())); String rightData = (right == null ? "null" : right.getData()); writer.write("[" + leftKey + "][" + leftData + "][" + rightKey + "][" + rightData + "]\n"); } public static void main(String[] args) { try { BufferedReader leftReader = new BufferedReader(new FileReader("LEFT.DAT")); BufferedReader rightReader = new BufferedReader(new FileReader("RIGHT.DAT")); BufferedWriter output = new BufferedWriter(new FileWriter("OUTPUT.DAT")); Joiner joiner = new Joiner(); joiner.join(leftReader, rightReader, output); } catch (Throwable e) { e.printStackTrace(); } } } After applying the ideas from the proposed answer, I changed the loop to this private void join(RandomAccessFile left, RandomAccessFile right, BufferedWriter output) throws Throwable { long _pointer = 0; RandomAccessFile _left = left; RandomAccessFile _right = right; BufferedWriter _output = output; Record _leftRecord; Record _rightRecord; _leftRecord = read(_left); _rightRecord = read(_right); while( _leftRecord != null && _rightRecord != null ) { if( _leftRecord.getKey() < _rightRecord.getKey() ) { write(_output, _leftRecord, null); _leftRecord = read(_left); } else if( _leftRecord.getKey() > _rightRecord.getKey() ) { write(_output, null, _rightRecord); _pointer = _right.getFilePointer(); _rightRecord = read(_right); } else { long _tempPointer = 0; int key = _leftRecord.getKey(); while( _leftRecord != null && _leftRecord.getKey() == key ) { _right.seek(_pointer); _rightRecord = read(_right); while( _rightRecord != null && _rightRecord.getKey() == key ) { write(_output, _leftRecord, _rightRecord ); _tempPointer = _right.getFilePointer(); _rightRecord = read(_right); } _leftRecord = read(_left); } _pointer = _tempPointer; } } if( _leftRecord != null ) { write(_output, _leftRecord, null); _leftRecord = read(_left); while(_leftRecord != null) { write(_output, _leftRecord, null); _leftRecord = read(_left); } } else { if( _rightRecord != null ) { write(_output, null, _rightRecord); _rightRecord = read(_right); while(_rightRecord != null) { write(_output, null, _rightRecord); _rightRecord = read(_right); } } } _left.close(); _right.close(); _output.flush(); _output.close(); } UPDATE While this approach worked, it was terribly slow and so I have modified this to create files as buffers and this works very well. Here is the update ... private long getMaxBufferedLines(File file) throws Throwable { long freeBytes = Runtime.getRuntime().freeMemory() / 2; return (freeBytes / (file.length() / getLineCount(file))); } private void join(File left, File right, File output, JoinType joinType) throws Throwable { BufferedReader leftFile = new BufferedReader(new FileReader(left)); BufferedReader rightFile = new BufferedReader(new FileReader(right)); BufferedWriter outputFile = new BufferedWriter(new FileWriter(output)); long maxBufferedLines = getMaxBufferedLines(right); Record leftRecord; Record rightRecord; leftRecord = read(leftFile); rightRecord = read(rightFile); while( leftRecord != null && rightRecord != null ) { if( leftRecord.getKey().compareTo(rightRecord.getKey()) < 0) { if( joinType == JoinType.LeftOuterJoin || joinType == JoinType.LeftExclusiveJoin || joinType == JoinType.FullExclusiveJoin || joinType == JoinType.FullOuterJoin ) { write(outputFile, leftRecord, null); } leftRecord = read(leftFile); } else if( leftRecord.getKey().compareTo(rightRecord.getKey()) > 0 ) { if( joinType == JoinType.RightOuterJoin || joinType == JoinType.RightExclusiveJoin || joinType == JoinType.FullExclusiveJoin || joinType == JoinType.FullOuterJoin ) { write(outputFile, null, rightRecord); } rightRecord = read(rightFile); } else if( leftRecord.getKey().compareTo(rightRecord.getKey()) == 0 ) { String key = leftRecord.getKey(); List<File> rightRecordFileList = new ArrayList<File>(); List<Record> rightRecordList = new ArrayList<Record>(); rightRecordList.add(rightRecord); rightRecord = consume(key, rightFile, rightRecordList, rightRecordFileList, maxBufferedLines); while( leftRecord != null && leftRecord.getKey().compareTo(key) == 0 ) { processRightRecords(outputFile, leftRecord, rightRecordFileList, rightRecordList, joinType); leftRecord = read(leftFile); } // need a dispose for deleting files in list } else { throw new Exception("DATA IS NOT SORTED"); } } if( leftRecord != null ) { if( joinType == JoinType.LeftOuterJoin || joinType == JoinType.LeftExclusiveJoin || joinType == JoinType.FullExclusiveJoin || joinType == JoinType.FullOuterJoin ) { write(outputFile, leftRecord, null); } leftRecord = read(leftFile); while(leftRecord != null) { if( joinType == JoinType.LeftOuterJoin || joinType == JoinType.LeftExclusiveJoin || joinType == JoinType.FullExclusiveJoin || joinType == JoinType.FullOuterJoin ) { write(outputFile, leftRecord, null); } leftRecord = read(leftFile); } } else { if( rightRecord != null ) { if( joinType == JoinType.RightOuterJoin || joinType == JoinType.RightExclusiveJoin || joinType == JoinType.FullExclusiveJoin || joinType == JoinType.FullOuterJoin ) { write(outputFile, null, rightRecord); } rightRecord = read(rightFile); while(rightRecord != null) { if( joinType == JoinType.RightOuterJoin || joinType == JoinType.RightExclusiveJoin || joinType == JoinType.FullExclusiveJoin || joinType == JoinType.FullOuterJoin ) { write(outputFile, null, rightRecord); } rightRecord = read(rightFile); } } } leftFile.close(); rightFile.close(); outputFile.flush(); outputFile.close(); } public void processRightRecords(BufferedWriter outputFile, Record leftRecord, List<File> rightFiles, List<Record> rightRecords, JoinType joinType) throws Throwable { for(File rightFile : rightFiles) { BufferedReader rightReader = new BufferedReader(new FileReader(rightFile)); Record rightRecord = read(rightReader); while(rightRecord != null){ if( joinType == JoinType.LeftOuterJoin || joinType == JoinType.RightOuterJoin || joinType == JoinType.FullOuterJoin || joinType == JoinType.InnerJoin ) { write(outputFile, leftRecord, rightRecord); } rightRecord = read(rightReader); } rightReader.close(); } for(Record rightRecord : rightRecords) { if( joinType == JoinType.LeftOuterJoin || joinType == JoinType.RightOuterJoin || joinType == JoinType.FullOuterJoin || joinType == JoinType.InnerJoin ) { write(outputFile, leftRecord, rightRecord); } } } /** * consume all records having key (either to a single list or multiple files) each file will * store a buffer full of data. The right record returned represents the outside flow (key is * already positioned to next one or null) so we can't use this record in below while loop or * within this block in general when comparing current key. The trick is to keep consuming * from a List. When it becomes empty, re-fill it from the next file until all files have * been consumed (and the last node in the list is read). The next outside iteration will be * ready to be processed (either it will be null or it points to the next biggest key * @throws Throwable * */ private Record consume(String key, BufferedReader reader, List<Record> records, List<File> files, long bufferMaxRecordLines ) throws Throwable { boolean processComplete = false; Record record = records.get(records.size() - 1); while(!processComplete){ long recordCount = records.size(); if( record.getKey().compareTo(key) == 0 ){ record = read(reader); while( record != null && record.getKey().compareTo(key) == 0 && recordCount < bufferMaxRecordLines ) { records.add(record); recordCount++; record = read(reader); } } processComplete = true; // if record is null, we are done if( record != null ) { // if the key has changed, we are done if( record.getKey().compareTo(key) == 0 ) { // Same key means we have exhausted the buffer. // Dump entire buffer into a file. The list of file // pointers will keep track of the files ... processComplete = false; dumpBufferToFile(records, files); records.clear(); records.add(record); } } } return record; } /** * Dump all records in List of Record objects to a file. Then, add that * file to List of File objects * * NEED TO PLACE A LIMIT ON NUMBER OF FILE POINTERS (check size of file list) * * @param records * @param files * @throws Throwable */ private void dumpBufferToFile(List<Record> records, List<File> files) throws Throwable { String prefix = "joiner_" + files.size() + 1; String suffix = ".dat"; File file = File.createTempFile(prefix, suffix, new File("cache")); BufferedWriter writer = new BufferedWriter(new FileWriter(file)); for( Record record : records ) { writer.write( record.dump() ); } files.add(file); writer.flush(); writer.close(); }

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• SBS 2008 Backup Drive Full - Error Code '2147942512'

  - by HK1

  We are using Windows Backup on SBS 2008 SP2 and backing up to 1TB external hard drives. Recently after switching drives our backup started failing because the backup drive is full and auto-delete isn't automatically deleting older backups/show copies. I'm trying to get more information to help me effectively prevent this problem from reoccurring in the future. How I can tell that the drive is getting full: In the event viewer under Windows Logs Application, I'm seeing Event ID 517 but it fails to show an intelligible description. However, under Applications and Services Logs Microsoft Windows Backup Operational, I'm seeing an event with the ID of 5 and a description like this: Backup started at '10/4/2011 12:30:12 PM' failed with following error code '2147942512'. One of the most informative posts I've found on this error is located on Microsoft's Technet Forums here. In that post, a Microsoft representative gives this hazy explanation: auto-delete feature to ensure that at least some old backup copies are maintained on the disk -- does not automatically delete backups if space utilization by older copies is less than 1/8 of the disk size or in other words, 13% of the disk size. that means if the one full backup copy does not fit in the 7/8 of the disk size, backup may fail with disk full error. auto-delete will not automatically delete older versions to reclaim more older versions of backup. In the above explanation, I do not understand what is meant by "older copies" except that it appears that anything older than the very last shadow copy would be considered "older copies". I'm going to make the assumption that this problem where auto-delete will not work will affect any hard drive that is large enough to make an effective backup drive, or in other words, any hard drive that is large enough to hold more than one backup/shadow copy at once. The same MS representative proposes the solution of using a larger backup drive. I can't understand how this will help. It appears to me it will simply delay the problem until a later date. In order to resolve this problem for now, I did the following: Assign the backup drive a disk letter under disk management. Run the command line with Administrative rights. diskshadow.exe [enter] delete shadows oldest x: [enter] (where X: is the letter you assigned your backup drive) I manually ran the above command some 60 or 80 times to free up about 200 GB of space on my 1 Terrabyte External Hard drive. However, I do not feel this is a satisfactory solution to prevent the problem from happening again in the future. Does anyone have a solution to prevent your Windows Server backup drive from getting full?

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• Uwsgi starts from root but not as a service

  - by vittore

  I have nginx + uwsgi setup for flask website. thats my nginx server { listen 80; server_name _; location /static/ { alias /var/www/site/app/static/; } location / { uwsgi_pass 127.0.0.1:5080; include uwsgi_params; } } And here is my uwsgi config.xml <uwsgi> <socket>127.0.0.1:5080</socket> <autoload/> <daemonize>/var/log/uwsgi_webapp.log</daemonize> <pythonpath>/var/www/site/</pythonpath> <module>run:app</module> <plugins>python27</plugins> <virtualenv>/var/www/venv/</virtualenv> <processes>1</processes> <enable-threads/> <master /> <harakiri>60</harakiri> <max-requests>2000</max-requests> <limit-as>512</limit-as> <reload-on-as>256</reload-on-as> <reload-on-rss>192</reload-on-rss> <no-orphans/> <vacuum/> </uwsgi> When I trying to start uwsgi service (service uwsgi start) it says ok but there is no uwsgi process and I see the following in the log: *** Starting uWSGI 1.0.3-debian (64bit) on [Fri Oct 25 00:43:13 2013] *** compiled with version: 4.6.3 on 17 July 2012 02:26:54 current working directory: / writing pidfile to /run/uwsgi/app/gsk/pid detected binary path: /usr/bin/uwsgi-core setgid() to 33 setuid() to 33 limiting address space of processes... your process address space limit is 536870912 bytes (512 MB) your memory page size is 4096 bytes *** WARNING: you have enabled harakiri without post buffering. Slow upload could be rejected on post-unbuffered webservers *** uwsgi socket 0 bound to TCP address 127.0.0.1:5080 fd 6 bind(): Permission denied [socket.c line 107] However when I start uwsgi as a root uwsgi --socket 127.0.0.1:5080 --module run --callab app --harakiri 15 --harakiri-verbose --logto2 tmp/uwsgi.log It starts just fine and after restarting nginx I can access website. What can be an issue ?

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• JBoss 5.1.0.GA and huge vfs-nested.tmp

  - by Petteri Hietavirta

  I noticed this while running a performance test with JMeter. For first half an hour everything was fine and the /server/all/tmp directory size was around 36M. Then suddenly the tmp directory grew up to 6.1G. The space was taken by jar files inside vfs-nested.tmp. I found https://jira.jboss.org/jira/browse/JBAS-7126 but adding that config but it made no difference.

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• Safe to enable compression C:\WINDOWS\system32\LogFiles

  - by Nissan Fan

  Will it slow down my website if I enable compression on the C:\WINDOWS\system32\LogFiles directory? These files are slowly but surely chewing away drive space and I'd like to slow the expansion. I'm worried however that this will also slow my websites.

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• Free solution to backup folders to external SFTP server with shadow copy

  - by Sergiy Byelozyorov

  I have an account in university on Linux machine with 10TB of free space accessible via SFTP. I would like to backup my Windows 7 x64 laptop to university. Currently I am using rsync+cygwin, but backup is pretty slow (without shadow copy) and I hate console window appearing every day on my screen when I login. So I am looking for something like Windows Backup but with support for SFTP. Combination of tools will work too.

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• How to safely abort chkdsk?

  - by George Edison

  I am running chkdsk on a 1TB external hard drive. The scan is at stage 5 (scanning free space). It is taking forever... Is there a safe way to abort this? The drive has less than 20GB worth of stuff on it.

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• Overlapping dual monitors

  - by Manny

  I have dual monitor setup and I was wondering if there's a way to specifiy an overlap between the 2 displays. Ideally, the area where the 2 monitors cross over would be repeated on both monitors (ven diagram-ish). Currently the display settings can only work when they're adjacent. On a side note, is it possible to seperate the monitors so that there's an assumed space between the displays? I'm currently running windows 7.

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• Recommendation for a redundant 60V DC Powersupply

  - by Lairsdragon

  We have some Telco-Equipment in our data space center which we had been given by our Telco. What they didn't provide is a redundant power supply and therefore we are struggling with outages of this equipment. What I am searching for is a redundant Power-Supply for 60V and 600W 60 Volt DC output 600 Watts rated power 2 220V Input with galvanic separation Rack mountable Any suggestions?

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