connection sharing - Page 169

PHP Get the last insert id from ODBC connection.

- by praveenjayapal

How do I get the last insert id from a database using a ODBC connection? I'm looking for a solution similar to the mysql_insert_id() function.

Opening a streaming connection to an HTTP server on iPhone/Cocoa environment?

- by Paul

I've been using NSURLConnection to do a HTTP post to establish the connection. I've also implemented the didReceiveData delegagate to process incoming bytes as they become available. As incoming data comes in via didReceiveData, I add the NSData to a data buffer and try parsing the bytesteam if enough data has come in to complete a message segment. I'm having a hard time managing the data buffer (NSMutableData object) to remove bytes that have been parsed to structs. Was curious if there's an easier way. Thanks

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How can I set a connection time out manually?

- by Daniel

I use connect(socketfd, (struct sockaddr*)&remoteAddr, sizeof(remoteAddr)) to connect my iPhone to a computer (over WIFI) and it works fine so far. However if the computer is out of reach, my iPhone tries to establish a connection for more than a min. Is there a posibility to set the time manually out to a new value, e.g. 15 sec?

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how to know which installed devices has internet connection in WINPCAP?

- by smarej

i have known that winpcap library enabled a person to obtain advanced information about installed devices... given all the networking devices found in the computer, how will i know which one of this has an internet connection?! thanks:)

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Using Java, Need to establish an https connection via proxy.

- by Zombies

I need to establish and send/read over/from an https connection (to a website of course) but through an http proxy or SOCKS proxy. A few other requirements supports blocking (I can't use non-blocking/nio) isn't set as an environment or some other global scope property (there are multiple threads accessing) I was looking into HttpCore components but I did not see any support for blocking https.

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Java / MySQL - How to access connection from another class?

- by Alex

I'm just getting my head around java (and OOP for that matter), the only thing I am familiar with is MySQL. I need to keep the DB connection open throughout the duration of the application, as well as a server socket. I'm not even sure if they both need separate classes, but here's what I have so far: http://pastebin.com/qzMFFTrY (it wouldn't all go in a code tag) The variable I need is con for line 86.

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Chat with Audio/Video and DesktopSharing

- by RavIncredible

Hi All, I am working on an application where I like to bundle 3 things: 1. Chat 2. Audio / Video Conversation 3. Desktop Sharing I would like to know the approach and where to look in for this, few of the things that I am aware of are: Chat and Audio – I can go with Jabber server and configure any SIP server like asterix for audio calls. Desktop Sharing – I have read about silverlite coming up with Desktop Sharing modules, but what would be only targeted to Windows. I would like to have sharing for windows, mac and linux OS. I don’t mind building separate clients for each. But I like to know which common protocol has to be used for Desktop sharing. In other words something similar to team viewer. Please suggest. Video Conference – I totally don’t have any idea about this. The application that I am supposed to build has to target the below platforms: 1. Window, Mac, Linux Desktop 2. iPhone, iPad and Android Devices. Would appreciate any help or reference or links to any of the topics (Chat, A/V and desktop sharing). Thanks Ravi

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Redmine on Apache2 with Passenger issue

- by nkr1pt

I installed Redmine and run it in Apache2 with the Passenger module. Apache2 boots, Passenger module gets loaded and the Redmine welcome page is shown, however when trying to login or navigate to other parts of the Redmine site, the browser keeps loading and loading and loading forever, although the Redmine production.log indicates redirects and HTTP 200 codes in the header, so everything seems to work correctly according to the log. I tested in various browsers. Does anyone have an idea what could be wrong? I will add apache configuration and some relevant log snippets from both apache and redmine hereafter. Apache2 Redmine configuration: DocumentRoot /var/www <Directory /var/www/redmine> RailsEnv production AllowOverride all RailsBaseURI /redmine PassengerResolveSymLinksInDocumentRoot on </Directory> Apache2 error log after booting Apache: [Wed Feb 09 19:59:58 2011] [notice] Apache/2.2.14 (Ubuntu) Phusion_Passenger/3.0.2 DAV/2 SVN/1.6.6 configured -- resuming normal operations Redmine production log after logging in: Logfile created on Wed Feb 09 20:01:40 +0100 2011 Processing WelcomeController#index (for 192.168.1.55 at 2011-02-09 20:01:48) [GET] Parameters: {"action"=>"index", "controller"=>"welcome"} Rendering template within layouts/base Rendering welcome/index Completed in 220ms (View: 96, DB: 16) | 200 OK [http://sirius/redmine] Processing AccountController#login (for 192.168.1.55 at 2011-02-09 20:03:17) [GET] Parameters: {"action"=>"login", "controller"=>"account"} Rendering template within layouts/base Rendering account/login Completed in 85ms (View: 63, DB: 1) | 200 OK [http://sirius/redmine/login] Processing AccountController#login (for 192.168.1.55 at 2011-02-09 20:03:20) [POST] Parameters: {"back_url"=>"http%3A%2F%2Fsirius%2Fredmine", "action"=>"login", "authenticity_token"=>"cEMUZHhRKJU8w3p6d+xQQhJTk4/pnnzUdg5g5fwhxDU=", "username"=>"admin", "controller"=>"account", "password"=>"[FILTERED]", "login"=>"Login \302\273"} Redirected to http://sirius/redmine Completed in 37ms (DB: 6) | 302 Found [http://sirius/redmine/login] Processing WelcomeController#index (for 192.168.1.55 at 2011-02-09 20:03:20) [GET] Parameters: {"action"=>"index", "controller"=>"welcome"} Rendering template within layouts/base Rendering welcome/index Completed in 100ms (View: 77, DB: 6) | 200 OK [http://sirius/redmine] Apache2 error log afterwards: [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/mod_instaweb.cc(247)] ModPagespeed OutputFilter called for request /redmine/login [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/mod_instaweb.cc(272)] unparsed=/redmine/login, absolute_url=http://sirius/redmine/login [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: HtmlParse::StartParse [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/mod_instaweb.cc(299)] Request headers:\nHTTP/1.1 0 Internal Server Error\r\nHost: sirius\r\nUser-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.8) Gecko/20100723 Ubuntu/10.04 (lucid) Firefox/3.6.8\r\nAccept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8\r\nAccept-Language: en-us,en;q=0.5\r\nAccept-Encoding: gzip,deflate\r\nAccept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\nKeep-Alive: 115\r\nConnection: keep-alive\r\nReferer: http://sirius/redmine\r\nCookie: _redmine_session=BAh7BjoPc2Vzc2lvbl9pZCIlNmVlMzFiMDc4MWQxZDU5ZTI5MTk2NjU0NGY3MzJmYzQ%3D--ea4b7adbc35551051632b5544faaad138ae08d90\r\n\r\n [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/mod_instaweb.cc(302)] request-filename=/var/www/redmine/login, uri=/redmine/login [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/mod_instaweb.cc(319)] ModPagespeed Response headers:\nHTTP/1.1 200 OK\r\nStatus: 200\r\nX-Mod-Pagespeed: 0.9.0.0-128\r\n\r\n [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 2157us: HtmlParse::Flush [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 2272us: HtmlParse::CoalesceAdjacentCharactersNodes [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 2342us: HtmlParse::ApplyFilter:AddHead [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 2407us: HtmlParse::SanityCheck [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 2504us: HtmlParse::ApplyFilter:CssCombine [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/stylesheets/application.css?1296181549 [Wed Feb 09 20:03:17 2011] [warn] [0209/200317:WARNING:net/instaweb/util/google_message_handler.cc(32)] Failed to create or read input resource /redmine/stylesheets/application.css?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/stylesheets/jstoolbar.css?1296181549 [Wed Feb 09 20:03:17 2011] [warn] [0209/200317:WARNING:net/instaweb/util/google_message_handler.cc(32)] Failed to create or read input resource /redmine/stylesheets/jstoolbar.css?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 3642us: HtmlParse::ApplyFilter:CssFilter [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/stylesheets/application.css?1296181549 [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] http://sirius/redmine/login:9: Failed to load resource http://sirius/redmine/stylesheets/application.css?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/stylesheets/jstoolbar.css?1296181549 [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] http://sirius/redmine/login:17: Failed to load resource http://sirius/redmine/stylesheets/jstoolbar.css?1296181549 [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Failed to load resource http://sirius/redmine/stylesheets/jstoolbar.css?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 4863us: HtmlParse::ApplyFilter:Javascript [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:11: Found script with src /redmine/javascripts/prototype.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/prototype.js?1296181549 [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/prototype.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:12: Found script with src /redmine/javascripts/effects.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/effects.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/effects.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: http://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/effects.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:13: Found script with src /redmine/javascripts/dragdrop.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/dragdrop.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] Creating connection [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:14: Found script with src /redmine/javascripts/controls.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/controls.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/controls.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:15: Found script with src /redmine/javascripts/application.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/application.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] Creating connection [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 8389us: HtmlParse::SanityCheck [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 8588us: HtmlParse::CoalesceAdjacentCharactersNodes [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 8701us: HtmlParse::ApplyFilter:InlineCss [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: 8701us: HtmlParse::ApplyFilter:InlineCss [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/stylesheets/application.css?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/stylesheets/application.css?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 9199us: HtmlParse::ApplyFilter:InlineJs [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/prototype.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/prototype.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/effects.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] Creating connectionhttp://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/effects.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connectionhttp://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/effects.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/dragdrop.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/dragdrop.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/controls.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/controls.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/application.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/application.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 11398us: HtmlParse::ApplyFilter:ImgRewrite [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 11506us: HtmlParse::ApplyFilter:CacheExtender [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/stylesheets/application.css?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/stylesheets/application.css?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/prototype.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/prototype.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/effects.js?1296181549 [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/effects.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/dragdrop.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/dragdrop.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/controls.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/controls.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/javascripts/application.js?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/javascripts/application.js?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/stylesheets/jstoolbar.css?1296181549 [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(29)] http://sirius/redmine/login: Couldn't fetch resource /redmine/stylesheets/jstoolbar.css?1296181549 to rewrite. [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 14401us: HtmlParse::ApplyFilter:HtmlWriter [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [notice] [0209/200317:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 15218us: HtmlParse::FinishParse [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:17 2011] [error] [0209/200317:ERROR:net/instaweb/util/google_message_handler.cc(54)] net/instaweb/apache/serf_url_async_fetcher.cc:506: Creating connection [Wed Feb 09 20:03:20 2011] [warn] [client 192.168.1.55] Not GET request: 2., referer: http://sirius/redmine/login [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/apache/mod_instaweb.cc(247)] ModPagespeed OutputFilter called for request /redmine/login [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/apache/mod_instaweb.cc(272)] unparsed=/redmine/login, absolute_url=http://sirius/redmine/login [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: HtmlParse::StartParse [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/apache/mod_instaweb.cc(299)] Request headers:\nHTTP/1.1 0 Internal Server Error\r\nHost: sirius\r\nUser-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.8) Gecko/20100723 Ubuntu/10.04 (lucid) Firefox/3.6.8\r\nAccept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8\r\nAccept-Language: en-us,en;q=0.5\r\nAccept-Encoding: gzip,deflate\r\nAccept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\nKeep-Alive: 115\r\nConnection: keep-alive\r\nReferer: http://sirius/redmine/login\r\nCookie: _redmine_session=BAh7BzoPc2Vzc2lvbl9pZCIlNmVlMzFiMDc4MWQxZDU5ZTI5MTk2NjU0NGY3MzJmYzQ6EF9jc3JmX3Rva2VuIjFjRU1VWkhoUktKVTh3M3A2ZCt4UVFoSlRrNC9wbm56VWRnNWc1ZndoeERVPQ%3D%3D--8b195ac3cab88b5a1f408e3f18aaddc70782140e\r\nContent-Type: application/x-www-form-urlencoded\r\nContent-Length: 165\r\n\r\n [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/apache/mod_instaweb.cc(302)] request-filename=/var/www/redmine/login, uri=/redmine/login [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/apache/mod_instaweb.cc(319)] ModPagespeed Response headers:\nHTTP/1.1 302 Found\r\nLocation: http://sirius/redmine\r\nStatus: 302\r\nX-Mod-Pagespeed: 0.9.0.0-128\r\n\r\n [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 604us: HtmlParse::Flush [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 697us: HtmlParse::CoalesceAdjacentCharactersNodes [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 758us: HtmlParse::ApplyFilter:AddHead [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 813us: HtmlParse::SanityCheck [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 912us: HtmlParse::CoalesceAdjacentCharactersNodes [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 965us: HtmlParse::ApplyFilter:CssCombine [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 1020us: HtmlParse::ApplyFilter:CssFilter [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 1073us: HtmlParse::ApplyFilter:Javascript [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 1125us: HtmlParse::ApplyFilter:InlineCss [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 1179us: HtmlParse::ApplyFilter:InlineJs [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 1233us: HtmlParse::ApplyFilter:ImgRewrite [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 1285us: HtmlParse::ApplyFilter:CacheExtender [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 1338us: HtmlParse::ApplyFilter:HtmlWriter [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine/login:1: 1415us: HtmlParse::FinishParse [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/apache/mod_instaweb.cc(247)] ModPagespeed OutputFilter called for request /redmine [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/apache/mod_instaweb.cc(272)] unparsed=/redmine, absolute_url=http://sirius/redmine [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine:1: HtmlParse::StartParse [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/apache/mod_instaweb.cc(299)] Request headers:\nHTTP/1.1 0 Internal Server Error\r\nHost: sirius\r\nUser-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.8) Gecko/20100723 Ubuntu/10.04 (lucid) Firefox/3.6.8\r\nAccept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8\r\nAccept-Language: en-us,en;q=0.5\r\nAccept-Encoding: gzip,deflate\r\nAccept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\nKeep-Alive: 115\r\nConnection: keep-alive\r\nReferer: http://sirius/redmine/login\r\nCookie: _redmine_session=BAh7BzoMdXNlcl9pZGkGOg9zZXNzaW9uX2lkIiVlYjNmYTY5NmZjNzMwYTdhMjA5ZDJmZmM4MTM0MzcyMw%3D%3D--57a4931aae681664d2a6ff6c039ac84b6ebc9e55\r\nIf-None-Match: "76628aff953f11fbdefb77ce3d575718"\r\n\r\n [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/apache/mod_instaweb.cc(302)] request-filename=/var/www/redmine, uri=/redmine [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/apache/mod_instaweb.cc(319)] ModPagespeed Response headers:\nHTTP/1.1 200 OK\r\nStatus: 200\r\nX-Mod-Pagespeed: 0.9.0.0-128\r\n\r\n [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine:1: 1870us: HtmlParse::Flush [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine:1: 1973us: HtmlParse::CoalesceAdjacentCharactersNodes [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine:1: 2040us: HtmlParse::ApplyFilter:AddHead [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine:1: 2101us: HtmlParse::SanityCheck [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/util/google_message_handler.cc(48)] http://sirius/redmine:1: 2231us: HtmlParse::ApplyFilter:CssCombine [Wed Feb 09 20:03:20 2011] [notice] [0209/200320:INFO:net/instaweb/apache/serf_url_async_fetcher.cc(632)] Initiating async fetch for http://sirius/redmine/stylesheets/application.css?1296181549

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SCVMM 2012 R2 - Installing Virtual Switch Fails with Error 2916

- by Brian M.

So I've been attempting to teach myself SCVMM 2012 and Hyper-V Server 2012 R2, and I seem to have hit a snag. I've connected my Hyper-V Host to SCVMM 2012 successfully, and created a logical network, logical switch, and uplink port profile (which I essentially blew through with the default settings). However when I attempt to create a virtual switch on my Hyper-V host, I run into an issue. The job will use my logical network settings I created to configure the virtual switch, but when it tries to apply it to the host, it stalls and eventually fails with the following error: Error (2916) VMM is unable to complete the request. The connection to the agent vmhost1.test.loc was lost. WinRM: URL: [h**p://vmhost1.test.loc:5985], Verb: [GET], Resource: [h**p://schemas.microsoft.com/wbem/wsman/1/wmi/root/virtualization/v2/Msvm_ConcreteJob?InstanceID=2F401A71-14A2-4636-9B3E-10C0EE942D33] Unknown error (0x80338126) Recommended Action Ensure that the Windows Remote Management (WinRM) service and the VMM agent are installed and running and that a firewall is not blocking HTTP/HTTPS traffic. Ensure that VMM server is able to communicate with econ-hyperv2.econ.loc over WinRM by successfully running the following command: winrm id –r:vmhost1.test.loc This problem can also be caused by a Windows Management Instrumentation (WMI) service crash. If the server is running Windows Server 2008 R2, ensure that KB 982293 (h**p://support.microsoft.com/kb/982293) is installed on it. If the error persists, restart vmhost1.test.loc and then try the operation again. Refer to h**p://support.microsoft.com/kb/2742275 for more details. I restarted the server, and upon booting am greeted with a message stating "No active network adapters found." I load up powershell and run "Get-NetAdapter -IncludeHidden" to see what's going on, and get the following: Name InterfaceDescription ifIndex Status ---- -------------------- ------- ----- Local Area Connection* 5 WAN Miniport (PPPOE) 6 Di... Ethernet Microsoft Hyper-V Network Switch Def... 10 Local Area Connection* 1 WAN Miniport (L2TP) 2 Di... Local Area Connection* 8 WAN Miniport (Network Monitor) 9 Up Local Area Connection* 4 WAN Miniport (PPTP) 5 Di... Ethernet 2 Broadcom NetXtreme Gigabit Ethernet 13 Up Local Area Connection* 7 WAN Miniport (IPv6) 8 Up Local Area Connection* 9 Microsoft Kernel Debug Network Adapter 11 No... Local Area Connection* 3 WAN Miniport (IKEv2) 4 Di... Local Area Connection* 2 WAN Miniport (SSTP) 3 Di... vSwitch (TEST Test Swi... Hyper-V Virtual Switch Extension Ada... 17 Up Local Area Connection* 6 WAN Miniport (IP) 7 Up Now the machine is no longer visible on the network, and I don't have the slightest idea what went wrong, and more importantly how to undo the damage I caused in order to get back to where I was (save for re-installing Hyper-V Server, but I really would rather know what's going on and how to fix it)! Does anybody have any ideas? Much appreciated!

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Mail server not sending or receiving after removal from barracuda blacklist to white list

- by user137765

Mail server not sending or receiving after removal from barracuda blacklist to white list. I've checked against black lists and the ip and domain are clean. 1and1 are saying its Barracuda black list and barracuda are saying its not blacklisted and that its somethign with 1and1 server. section from log file... Sep 20 04:29:25 vegaserve postfix/smtpd[16906]: connect from mta860.chtah.net[63.236.31.146] Sep 20 04:29:25 vegaserve postfix/smtpd[16070]: connect from host81-136-144-117.in-addr.btopenworld.com[81.136.144.117] Sep 20 04:29:27 vegaserve pop3d: IMAP connect from @ [201.80.253.153]checkmailpasswd: FAILED: raidon - short names not allowed from @ [201.80.253.153]ERR: 1348111767.185119 LOGOUT, [email protected], ip=[86.143.136.249], top=0, retr=0, time=151, rcvd=18, sent=283, maildir=/var/qmail/mailnames/mbelectrics.net/mb/Maildir Sep 20 04:29:28 vegaserve pop3d: LOGIN FAILED, ip=[201.80.253.153] Sep 20 04:29:28 vegaserve postfix/smtpd[15388]: connect from mta965.emails.itv.com[8.30.201.55] Sep 20 04:29:29 vegaserve postfix/smtpd[18194]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:29 vegaserve postfix/cleanup[24879]: 95CB31E87556C: message-id=<[email protected] Sep 20 04:29:29 vegaserve postfix/qmgr[14378]: 95CB31E87556C: from=, size=975, nrcpt=1 (queue active) Sep 20 04:29:29 vegaserve postfix/smtpd[18194]: disconnect from uspmta172097.emarsys.net[195.54.172.97] Sep 20 04:29:29 vegaserve postfix/smtp[25748]: 95CB31E87556C: to=, orig_to=, relay=none, delay=0.05, delays=0.05/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:29 vegaserve postfix/bounce[25897]: warning: 95CB31E87556C: undeliverable postmaster notification discarded Sep 20 04:29:29 vegaserve postfix/qmgr[14378]: 95CB31E87556C: removed Sep 20 04:29:32 vegaserve pop3d: Connection, ip=[201.80.253.153] Sep 20 04:29:37 vegaserve pop3d: IMAP connect from @ [201.80.253.153]checkmailpasswd: FAILED: rei - short names not allowed from @ [201.80.253.153]ERR: LOGIN FAILED, ip=[201.80.253.153] Sep 20 04:29:38 vegaserve pop3d: Connection, ip=[201.80.253.153] Sep 20 04:29:38 vegaserve postfix/smtpd[19328]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:40 vegaserve postfix/smtpd[18331]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:40 vegaserve postfix/smtpd[24464]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:40 vegaserve postfix/cleanup[24825]: BD1A71E87556C: message-id=<[email protected] Sep 20 04:29:40 vegaserve postfix/qmgr[14378]: BD1A71E87556C: from=, size=673, nrcpt=1 (queue active) Sep 20 04:29:40 vegaserve postfix/smtpd[24464]: disconnect from unknown[118.97.212.190] Sep 20 04:29:40 vegaserve postfix/smtp[25748]: BD1A71E87556C: to=, orig_to=, relay=none, delay=0.04, delays=0.04/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:40 vegaserve postfix/bounce[25995]: warning: BD1A71E87556C: undeliverable postmaster notification discarded Sep 20 04:29:40 vegaserve postfix/qmgr[14378]: BD1A71E87556C: removed Sep 20 04:29:41 vegaserve postfix/cleanup[24879]: 0A42B1E87556C: message-id=<[email protected] Sep 20 04:29:41 vegaserve postfix/qmgr[14378]: 0A42B1E87556C: from=, size=961, nrcpt=1 (queue active) Sep 20 04:29:41 vegaserve postfix/smtpd[18331]: disconnect from bay0-omc4-s10.bay0.hotmail.com[65.54.190.212] Sep 20 04:29:41 vegaserve postfix/smtp[25748]: 0A42B1E87556C: to=, orig_to=, relay=none, delay=0.03, delays=0.03/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:41 vegaserve postfix/bounce[25897]: warning: 0A42B1E87556C: undeliverable postmaster notification discarded Sep 20 04:29:41 vegaserve postfix/qmgr[14378]: 0A42B1E87556C: removed Sep 20 04:29:43 vegaserve postfix/smtpd[17511]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:43 vegaserve postfix/cleanup[24825]: 8F8991E87556C: message-id=<[email protected] Sep 20 04:29:43 vegaserve postfix/qmgr[14378]: 8F8991E87556C: from=, size=946, nrcpt=1 (queue active) Sep 20 04:29:43 vegaserve postfix/smtpd[17511]: disconnect from blu0-omc4-s22.blu0.hotmail.com[65.55.111.161] Sep 20 04:29:43 vegaserve postfix/smtp[25748]: 8F8991E87556C: to=, orig_to=, relay=none, delay=0.05, delays=0.02/0/0.02/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:43 vegaserve postfix/bounce[25995]: warning: 8F8991E87556C: undeliverable postmaster notification discarded Sep 20 04:29:43 vegaserve postfix/qmgr[14378]: 8F8991E87556C: removed Sep 20 04:29:44 vegaserve postfix/cleanup[24879]: 088641E87556C: message-id=<[email protected] Sep 20 04:29:44 vegaserve postfix/qmgr[14378]: 088641E87556C: from=, size=1078, nrcpt=1 (queue active) Sep 20 04:29:44 vegaserve postfix/smtpd[19328]: disconnect from smtp10.bis7.eu.blackberry.com[178.239.85.15] Sep 20 04:29:44 vegaserve postfix/smtp[25748]: 088641E87556C: to=, orig_to=, relay=none, delay=0.05, delays=0.03/0/0.01/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:44 vegaserve postfix/bounce[25995]: warning: 088641E87556C: undeliverable postmaster notification discarded Sep 20 04:29:44 vegaserve postfix/qmgr[14378]: 088641E87556C: removed Sep 20 04:29:44 vegaserve pop3d: IMAP connect from @ [201.80.253.153]checkmailpasswd: FAILED: rin - short names not allowed from @ [201.80.253.153]ERR: LOGIN FAILED, ip=[201.80.253.153] Sep 20 04:29:44 vegaserve pop3d: Connection, ip=[201.80.253.153] Sep 20 04:29:44 vegaserve postfix/smtpd[18965]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:44 vegaserve postfix/cleanup[24825]: 946F51E87556C: message-id=<[email protected] Sep 20 04:29:44 vegaserve postfix/qmgr[14378]: 946F51E87556C: from=, size=1173, nrcpt=1 (queue active) Sep 20 04:29:44 vegaserve postfix/smtpd[18965]: disconnect from hubrelay-rd.bt.com[62.239.224.99] Sep 20 04:29:44 vegaserve postfix/smtp[25748]: 946F51E87556C: to=, orig_to=, relay=none, delay=0.04, delays=0.04/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:44 vegaserve postfix/bounce[25897]: warning: 946F51E87556C: undeliverable postmaster notification discarded Sep 20 04:29:44 vegaserve postfix/qmgr[14378]: 946F51E87556C: removed Sep 20 04:29:45 vegaserve postfix/smtpd[14816]: connect from col0-omc2-s12.col0.hotmail.com[65.55.34.86] Sep 20 04:29:47 vegaserve postfix/smtpd[16900]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:29:47 vegaserve postfix/cleanup[24879]: 961721E87556C: message-id=<[email protected] Sep 20 04:29:47 vegaserve postfix/qmgr[14378]: 961721E87556C: from=, size=1082, nrcpt=1 (queue active) Sep 20 04:29:47 vegaserve postfix/smtpd[16900]: disconnect from mta-35d2.livingsocial.com[199.91.53.210] Sep 20 04:29:47 vegaserve postfix/smtp[25748]: 961721E87556C: to=, orig_to=, relay=none, delay=0.04, delays=0.04/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:29:47 vegaserve postfix/bounce[25995]: warning: 961721E87556C: undeliverable postmaster notification discarded Sep 20 04:29:47 vegaserve postfix/qmgr[14378]: 961721E87556C: removed Sep 20 04:29:50 vegaserve pop3d: IMAP connect from @ [201.80.253.153]checkmailpasswd: FAILED: rini - short names not allowed from @ [201.80.253.153]ERR: LOGIN FAILED, ip=[201.80.253.153] Sep 20 04:29:50 vegaserve pop3d: Connection, ip=[201.80.253.153] Sep 20 04:29:52 vegaserve postfix/smtpd[24478]: connect from col0-omc2-s13.col0.hotmail.com[65.55.34.87] Sep 20 04:29:52 vegaserve postfix/smtpd[18923]: connect from www.idbwplan.com[193.181.254.21] Sep 20 04:29:55 vegaserve postfix/smtpd[15968]: connect from 105-48.mta.dotmailer.com[94.143.105.48] Sep 20 04:29:56 vegaserve pop3d: IMAP connect from @ [201.80.253.153]checkmailpasswd: FAILED: ringo - short names not allowed from @ [201.80.253.153]ERR: LOGIN FAILED, ip=[201.80.253.153] Sep 20 04:29:56 vegaserve pop3d: Connection, ip=[201.80.253.153] Sep 20 04:30:00 vegaserve postfix/smtpd[18772]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:30:01 vegaserve postfix/cleanup[24825]: 1DAD71E87556C: message-id=<[email protected] Sep 20 04:30:01 vegaserve postfix/qmgr[14378]: 1DAD71E87556C: from=, size=1022, nrcpt=1 (queue active) Sep 20 04:30:01 vegaserve postfix/smtpd[18772]: disconnect from mail95.us2.mcsv.net[173.231.139.95] Sep 20 04:30:01 vegaserve postfix/smtp[25748]: 1DAD71E87556C: to=, orig_to=, relay=none, delay=0.06, delays=0.05/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself) Sep 20 04:30:01 vegaserve postfix/bounce[25897]: warning: 1DAD71E87556C: undeliverable postmaster notification discarded Sep 20 04:30:01 vegaserve postfix/qmgr[14378]: 1DAD71E87556C: removed Sep 20 04:30:02 vegaserve pop3d: IMAP connect from @ [201.80.253.153]checkmailpasswd: FAILED: ritsuko - short names not allowed from @ [201.80.253.153]ERR: LOGIN FAILED, ip=[201.80.253.153] Sep 20 04:30:02 vegaserve postfix/smtpd[16911]: warning: connect to proxy service 127.0.0.1:10025: Connection timed out Sep 20 04:30:02 vegaserve pop3d: Connection, ip=[201.80.253.153] Sep 20 04:30:02 vegaserve postfix/cleanup[24879]: 8AADD1E87556C: message-id=<[email protected] Sep 20 04:30:02 vegaserve postfix/qmgr[14378]: 8AADD1E87556C: from=, size=1003, nrcpt=1 (queue active) Sep 20 04:30:02 vegaserve postfix/smtpd[16911]: disconnect from mr133.createsend.com[184.106.86.133] Sep 20 04:30:02 vegaserve postfix/smtp[25748]: 8AADD1E87556C: to=, orig_to=, relay=none, delay=0.02, delays=0.02/0/0/0, dsn=5.4.6, status=bounced (mail for vegaserve.com loops back to myself)

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Windows TCP timeout

- by hs2d

Is there on windows any default timeout for tcp connection? So when no answere is received the connection would be closed. Why im asking is that on one machine the connection is closed afther 5 minutes.(Windows XP) Running the same client - server connection on other machine the connection is kept open forever like it should be. Or maybe there is some global java virtual machine setting somewhere i should know about? The server and client run on the same local machine

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Enable Media Streaming in Windows Home Server to Windows Media Player

- by Mysticgeek

One of the cool features of Windows Home Server is the ability to stream photos, music, and video to other computers on your network. Today we take a look at how to enable streaming in WHS to Windows Media Player in Vista and Windows 7. Turn on Media Streaming on WHS To enable Media Streaming from Windows Home Server, open the Windows Home Server Console and click on Settings. Now in the Setting screen select Media Sharing, then in the right column under Media Library Sharing turn on Library Sharing for the folders you want to stream. If you have a Windows 7 machine on your network make sure media streaming is enabled. You should then see the server under Other Libraries and can start streaming your media collection. Stream Video to Media Player 11 Now let’s say you want to stream videos to another member of your household who’s using a Vista machine in another room through Windows Media Player 11. Open WMP and click on Library then Media Sharing. Now click the box next to Find media that others are sharing then click Ok. Now you should see the server listed under Library…where in this example it’s geekserver. Since we only enabled Video streaming for this example, we need to click on the category icon and select Video. Now you can scroll through the available videos… And start enjoying your favorite videos streamed from the server through WMP 11 on Vista. Of course you can use this method to stream photos and music as well, you just need to enable what you want to stream from the Home Server Console. You can also stream your media to Windows Media Center and Xbox which we will be covering soon. Similar Articles Productive Geek Tips Share Digital Media With Other Computers on a Home Network with Windows 7Fixing When Windows Media Player Library Won’t Let You Add FilesGMedia Blog: Setting Up a Windows Home ServerShare and Stream Digital Media Between Windows 7 Machines On Your Home NetworkInstalling Windows Media Player Plugin for Firefox TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Need to Come Up with a Good Name? Try Wordoid StockFox puts a Lightweight Stock Ticker in your Statusbar Explore Google Public Data Visually The Ultimate Excel Cheatsheet Convert the Quick Launch Bar into a Super Application Launcher Automate Tasks in Linux with Crontab

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The embarrassingly obvious about SQL Server CE

- by Edward Boyle

I have been working with SQL servers in one form or another for almost two decades now. But I am new to SQL Server Compact Edition. In the past weeks I have been working with SQL Serve CE a lot. The SQL, not a problem, but the engine itself is very new to me. One of the issues I ran into was a simple SQL statement taking excusive amounts of time; by excessive, I mean over one second. I wrote a little code to time the method. Sometimes it took under one second, other times as long as three seconds. –But it was a simple update statement! As embarrassing as it is, why it was slow eluded me. I posted my issue to MSDN and I got a reply from ErikEJ (MS MVP) who runs the blog “Everything SQL Server Compact” . I know little to nothing about SQL Server Compact. This guy is completely obsessed very well versed in CE. If you spend any time in MSDN forums, it seems that this guy single handedly has the answer for every CE question that comes up. Anyway, he said: “Opening a connection to a SQL Server Compact database file is a costly operation, keep one connection open per thread (incl. your UI thread) in your app, the one on the UI thread should live for the duration of your app.” It hit me, all databases have some connection overhead and SQL Server CE is not a database engine running as a service drinking Jolt Cola waiting for someone to talk to him so he can spring into action and show off his quarter-mile sprint capabilities. Imagine if you had to start the SQL Server process every time you needed to make a database connection. Principally, that is what you are doing with SQL Server CE. For someone who has worked with Enterprise Level SQL Servers a lot, I had to come to the mental image that my Open connection to SQL Server CE is basically starting a service, my own private service, and by closing the connection, I am shutting down my little private service. After making the changes in my code, I lost any reservations I had with using CE. At present, my Data Access Layer class has a constructor; in that constructor I open my connection, I also have OpenConnection and CloseConnection methods, I also implemented IDisposable and clean up any connections in Dispose(). I am still finalizing how this assembly will function. – That’s beside the point. All I’m trying to say is: “Opening a connection to a SQL Server Compact database file is a costly operation”

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To File Share or to not File Share, that is the Question.

To file share or to not file share, that is the question. The concept of the internet was developed in the 1960’s as a revolutionary idea to share information and data amongst a group of computers. The original concept was to allow universities and the United States Military share data for research and field operations. This network of computers was designed to provide redundant data storage and communications in case one or more locations were destroyed. Since the inception of the internet, people have attempted to use it for sharing data. As the Internet has evolved so did the users and the information they wanted to share. In today’s modern internet people can share information through various avenues, for example: websites, social networks, email, documents, executable files, data files and much more. Unfortunately, as the internet and its users have grown, some industries have not paid attention. Currently, there are several industries that have really fallen behind in keeping up with current trends, and are severely paying the price for their lack of action. A current example of this is with the Recording Industry Association of America (RIAA) and file sharing. RIAA contends that customers who purchase music can only listen to the music and cannot share it with others. This can be seen when the RIAA sued Napster for distributing copyrighted music through a technology called file sharing. File sharing as defined by the Media Awareness Network is downloadable software that permits users to share music, video, image or book files directly with peers. Users of file sharing networks simply had to extract the music from a CD into a music compatible format. Typically most music files at that time where saved as MPEG file format. Once the users got music in this format it was very easy share their music with others. The big question now is who actually owns the music, does the music industry still retain the rights of the music regarding who has access to listen to it, or is it up to the owner of the music CD. According to the First – Sale Doctrine, it is the right of the purchaser of the CD to decide who can access the information on the CD. In addition, the original owner looses all rights to the music once it has been sold. The importance of defining who actually owns the music has a great impact on the future of the industry. If the industry is determined to be the actual owner of the music then anyone who has shared at least 1 fine with another is guilty of violating the copyright. However, if the owners of the CD are determined to be the owners of the music then the music industry will have to figure out some other way to protect their music so that it is more lucrative for them or they will go out of business. References: http://www.walthowe.com/navnet/history.html http://www.media-awareness.ca/english/resources/special_initiatives/wa_resources/wa_shared/backgrounders/internet_glossary.cfm#F

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Increasing deadlocks with NoLock

- by Dave Ballantyne

One on my personnel pet issues is with inappropriate use of the NOLOCK hint (and read uncommitted) . Dont get me wrong, I have used it in exceptional circumstances , but as a general statement it is a bad thing. Mostly , when NOLOCK, is used the discussion is around a single statement, “it runs faster with nolock for XYZ reason”, however ,IMO, this is quite a shorted sighted view. What about the Transaction ? What about other concurrent users ? What is good for one statement in isolation , does not mean that it is good for the system as a whole. I have seen on a number of occasions deadlocks happen, when tasks that would of(and should of) be blocked continue to execute, only for a deadlock to occur at a later data writing (INSERT,UPDATE,DELETE) statement. Writers will block writers regardless of isolation level. By Way of (fairly contrived ) example , lets generate some dummy tables and populate with some data drop table a go drop table b go Create Table a ( col1 integer ) go insert into a values(1) insert into a values(2) go Create Table b ( col1 integer ) go insert into b values(1) insert into b values(2) go Now make two connections. In connection one execute set transaction isolation level read committed BEGIN TRAN Select * from a Select * from b delete from a In connection two execute set transaction isolation level read committed BEGIN TRAN Select * from a Select * from b delete from b Right now the ‘select from a’ in connection two is being blocked by the ‘delete from a’ in connection one. This is ,IMO, quite a healthy and natural thing to be happening , some see this as a ‘slow down’, a drop in performance. So, lets reach for our ‘NOLOCK’ magic pill. Cancel the blocked query and ROLLBACK both transactions, then in connection one execute set transaction isolation level read uncommitted BEGIN TRAN Select * from a Select * from b delete from b and then in connection two execute set transaction isolation level read uncommitted BEGIN TRAN Select * from a Select * from b delete from a We have now solved out performance problem , no more blocking. Lets finish the work required by the transaction, in connection one , execute delete from a Oh, ‘ performance problem’ again , its now being blocked. Still, lets complete the work in connection two…. delete from b DEADLOCK!! It is important to be clear about the role of the select statements. They do not participate within the deadlock, but are preventing code executing that would of. Additionally, without the select readers to block, a deadlock would occur on the deletes with READ COMMITTED. Naturally, other isolation levels will exhibit different behaviour as to where and when they will and wont block, and I would encourage you to read BOL and satisfy yourself that you really do NEED to NOLOCK.

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Webdav stops working after a few seconds

- by user214885

With Ubuntu 13.10, I connect to two different OwnCloud installations and can browse for only a few seconds before it freezes the connection and stops working. When I try to reinstate the connection it fails to even ask for the password (Ubuntu was told to forget the password). I did check the webdav connection through Firefox on two computers and ES File Explorer on android. I know that this isn't a webdav problem and don't know what is happening in Ubuntu to stop being able to read the connection.

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"Unable to read data from the transport connection: net_io_connectionclosed." - Windows Vista Busine

- by John DaCosta

Unable to test sending email from .NET code in Windows Vista Business. I am writing code which I will migrate to an SSIS Package once it its proven. The code is to send an error message via email to a list of recipients. The code is below, however I am getting an exception when I execute the code. I created a simple class to do the mailing... the design could be better, I am testing functionality before implementing more robust functionality, methods, etc. namespace LabDemos { class Program { static void Main(string[] args) { Mailer m = new Mailer(); m.test(); } } } namespace LabDemos { class MyMailer { List<string> _to = new List<string>(); List<string> _cc = new List<string>(); List<string> _bcc = new List<string>(); String _msgFrom = ""; String _msgSubject = ""; String _msgBody = ""; public void test(){ //create the mail message MailMessage mail = new MailMessage(); //set the addresses mail.From = new MailAddress("[email protected]"); //set the content mail.Subject = "This is an email"; mail.Body = "this is a sample body"; mail.IsBodyHtml = false; //send the message SmtpClient smtp = new SmtpClient(); smtp.Host = "emailservername"; smtp.Port = 25; smtp.UseDefaultCredentials = true; smtp.Send(mail); } } Exception Message Inner Exception {"Unable to read data from the transport connection: net_io_connectionclosed."} Stack Trace " at System.Net.Mail.SmtpReplyReaderFactory.ProcessRead(Byte[] buffer, Int32 offset, Int32 read, Boolean readLine)\r\n at System.Net.Mail.SmtpReplyReaderFactory.ReadLines(SmtpReplyReader caller, Boolean oneLine)\r\n at System.Net.Mail.SmtpReplyReaderFactory.ReadLine(SmtpReplyReader caller)\r\n at System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port)\r\n at System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port)\r\n at System.Net.Mail.SmtpClient.GetConnection()\r\n at System.Net.Mail.SmtpClient.Send(MailMessage message)" Outer Exception System.Net.Mail.SmtpException was unhandled Message="Failure sending mail." Source="System" StackTrace: at System.Net.Mail.SmtpClient.Send(MailMessage message) at LabDemos.Mailer.test() in C:\Users\username\Documents\Visual Studio 2008\Projects\LabDemos\LabDemos\Mailer.cs:line 40 at LabDemos.Program.Main(String[] args) in C:\Users\username\Documents\Visual Studio 2008\Projects\LabDemos\LabDemos\Program.cs:line 48 at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args) at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args) at System.Runtime.Hosting.ManifestRunner.Run(Boolean checkAptModel) at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly() at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData) at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext) at System.Activator.CreateInstance(ActivationContext activationContext) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() InnerException: System.IO.IOException Message="Unable to read data from the transport connection: net_io_connectionclosed." Source="System" StackTrace: at System.Net.Mail.SmtpReplyReaderFactory.ProcessRead(Byte[] buffer, Int32 offset, Int32 read, Boolean readLine) at System.Net.Mail.SmtpReplyReaderFactory.ReadLines(SmtpReplyReader caller, Boolean oneLine) at System.Net.Mail.SmtpReplyReaderFactory.ReadLine(SmtpReplyReader caller) at System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpClient.GetConnection() at System.Net.Mail.SmtpClient.Send(MailMessage message) InnerException:

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Node.js Adventure - Storage Services and Service Runtime

- by Shaun

When I described on how to host a Node.js application on Windows Azure, one of questions might be raised about how to consume the vary Windows Azure services, such as the storage, service bus, access control, etc.. Interact with windows azure services is available in Node.js through the Windows Azure Node.js SDK, which is a module available in NPM. In this post I would like to describe on how to use Windows Azure Storage (a.k.a. WAS) as well as the service runtime. Consume Windows Azure Storage Let’s firstly have a look on how to consume WAS through Node.js. As we know in the previous post we can host Node.js application on Windows Azure Web Site (a.k.a. WAWS) as well as Windows Azure Cloud Service (a.k.a. WACS). In theory, WAWS is also built on top of WACS worker roles with some more features. Hence in this post I will only demonstrate for hosting in WACS worker role. The Node.js code can be used when consuming WAS when hosted on WAWS. But since there’s no roles in WAWS, the code for consuming service runtime mentioned in the next section cannot be used for WAWS node application. We can use the solution that I created in my last post. Alternatively we can create a new windows azure project in Visual Studio with a worker role, add the “node.exe” and “index.js” and install “express” and “node-sqlserver” modules, make all files as “Copy always”. In order to use windows azure services we need to have Windows Azure Node.js SDK, as knows as a module named “azure” which can be installed through NPM. Once we downloaded and installed, we need to include them in our worker role project and make them as “Copy always”. You can use my “Copy all always” tool mentioned in my last post to update the currently worker role project file. You can also find the source code of this tool here. The source code of Windows Azure SDK for Node.js can be found in its GitHub page. It contains two parts. One is a CLI tool which provides a cross platform command line package for Mac and Linux to manage WAWS and Windows Azure Virtual Machines (a.k.a. WAVM). The other is a library for managing and consuming vary windows azure services includes tables, blobs, queues, service bus and the service runtime. I will not cover all of them but will only demonstrate on how to use tables and service runtime information in this post. You can find the full document of this SDK here. Back to Visual Studio and open the “index.js”, let’s continue our application from the last post, which was working against Windows Azure SQL Database (a.k.a. WASD). The code should looks like this. 1: var express = require("express"); 2: var sql = require("node-sqlserver"); 3: 4: var connectionString = "Driver={SQL Server Native Client 10.0};Server=tcp:ac6271ya9e.database.windows.net,1433;Database=synctile;Uid=shaunxu@ac6271ya9e;Pwd={PASSWORD};Encrypt=yes;Connection Timeout=30;"; 5: var port = 80; 6: 7: var app = express(); 8: 9: app.configure(function () { 10: app.use(express.bodyParser()); 11: }); 12: 13: app.get("/", function (req, res) { 14: sql.open(connectionString, function (err, conn) { 15: if (err) { 16: console.log(err); 17: res.send(500, "Cannot open connection."); 18: } 19: else { 20: conn.queryRaw("SELECT * FROM [Resource]", function (err, results) { 21: if (err) { 22: console.log(err); 23: res.send(500, "Cannot retrieve records."); 24: } 25: else { 26: res.json(results); 27: } 28: }); 29: } 30: }); 31: }); 32: 33: app.get("/text/:key/:culture", function (req, res) { 34: sql.open(connectionString, function (err, conn) { 35: if (err) { 36: console.log(err); 37: res.send(500, "Cannot open connection."); 38: } 39: else { 40: var key = req.params.key; 41: var culture = req.params.culture; 42: var command = "SELECT * FROM [Resource] WHERE [Key] = '" + key + "' AND [Culture] = '" + culture + "'"; 43: conn.queryRaw(command, function (err, results) { 44: if (err) { 45: console.log(err); 46: res.send(500, "Cannot retrieve records."); 47: } 48: else { 49: res.json(results); 50: } 51: }); 52: } 53: }); 54: }); 55: 56: app.get("/sproc/:key/:culture", function (req, res) { 57: sql.open(connectionString, function (err, conn) { 58: if (err) { 59: console.log(err); 60: res.send(500, "Cannot open connection."); 61: } 62: else { 63: var key = req.params.key; 64: var culture = req.params.culture; 65: var command = "EXEC GetItem '" + key + "', '" + culture + "'"; 66: conn.queryRaw(command, function (err, results) { 67: if (err) { 68: console.log(err); 69: res.send(500, "Cannot retrieve records."); 70: } 71: else { 72: res.json(results); 73: } 74: }); 75: } 76: }); 77: }); 78: 79: app.post("/new", function (req, res) { 80: var key = req.body.key; 81: var culture = req.body.culture; 82: var val = req.body.val; 83: 84: sql.open(connectionString, function (err, conn) { 85: if (err) { 86: console.log(err); 87: res.send(500, "Cannot open connection."); 88: } 89: else { 90: var command = "INSERT INTO [Resource] VALUES ('" + key + "', '" + culture + "', N'" + val + "')"; 91: conn.queryRaw(command, function (err, results) { 92: if (err) { 93: console.log(err); 94: res.send(500, "Cannot retrieve records."); 95: } 96: else { 97: res.send(200, "Inserted Successful"); 98: } 99: }); 100: } 101: }); 102: }); 103: 104: app.listen(port); Now let’s create a new function, copy the records from WASD to table service. 1. Delete the table named “resource”. 2. Create a new table named “resource”. These 2 steps ensures that we have an empty table. 3. Load all records from the “resource” table in WASD. 4. For each records loaded from WASD, insert them into the table one by one. 5. Prompt to user when finished. In order to use table service we need the storage account and key, which can be found from the developer portal. Just select the storage account and click the Manage Keys button. Then create two local variants in our Node.js application for the storage account name and key. Since we need to use WAS we need to import the azure module. Also I created another variant stored the table name. In order to work with table service I need to create the storage client for table service. This is very similar as the Windows Azure SDK for .NET. As the code below I created a new variant named “client” and use “createTableService”, specified my storage account name and key. 1: var azure = require("azure"); 2: var storageAccountName = "synctile"; 3: var storageAccountKey = "/cOy9L7xysXOgPYU9FjDvjrRAhaMX/5tnOpcjqloPNDJYucbgTy7MOrAW7CbUg6PjaDdmyl+6pkwUnKETsPVNw=="; 4: var tableName = "resource"; 5: var client = azure.createTableService(storageAccountName, storageAccountKey); Now create a new function for URL “/was/init” so that we can trigger it through browser. Then in this function we will firstly load all records from WASD. 1: app.get("/was/init", function (req, res) { 2: // load all records from windows azure sql database 3: sql.open(connectionString, function (err, conn) { 4: if (err) { 5: console.log(err); 6: res.send(500, "Cannot open connection."); 7: } 8: else { 9: conn.queryRaw("SELECT * FROM [Resource]", function (err, results) { 10: if (err) { 11: console.log(err); 12: res.send(500, "Cannot retrieve records."); 13: } 14: else { 15: if (results.rows.length > 0) { 16: // begin to transform the records into table service 17: } 18: } 19: }); 20: } 21: }); 22: }); When we succeed loaded all records we can start to transform them into table service. First I need to recreate the table in table service. This can be done by deleting and creating the table through table client I had just created previously. 1: app.get("/was/init", function (req, res) { 2: // load all records from windows azure sql database 3: sql.open(connectionString, function (err, conn) { 4: if (err) { 5: console.log(err); 6: res.send(500, "Cannot open connection."); 7: } 8: else { 9: conn.queryRaw("SELECT * FROM [Resource]", function (err, results) { 10: if (err) { 11: console.log(err); 12: res.send(500, "Cannot retrieve records."); 13: } 14: else { 15: if (results.rows.length > 0) { 16: // begin to transform the records into table service 17: // recreate the table named 'resource' 18: client.deleteTable(tableName, function (error) { 19: client.createTableIfNotExists(tableName, function (error) { 20: if (error) { 21: error["target"] = "createTableIfNotExists"; 22: res.send(500, error); 23: } 24: else { 25: // transform the records 26: } 27: }); 28: }); 29: } 30: } 31: }); 32: } 33: }); 34: }); As you can see, the azure SDK provide its methods in callback pattern. In fact, almost all modules in Node.js use the callback pattern. For example, when I deleted a table I invoked “deleteTable” method, provided the name of the table and a callback function which will be performed when the table had been deleted or failed. Underlying, the azure module will perform the table deletion operation in POSIX async threads pool asynchronously. And once it’s done the callback function will be performed. This is the reason we need to nest the table creation code inside the deletion function. If we perform the table creation code after the deletion code then they will be invoked in parallel. Next, for each records in WASD I created an entity and then insert into the table service. Finally I send the response to the browser. Can you find a bug in the code below? I will describe it later in this post. 1: app.get("/was/init", function (req, res) { 2: // load all records from windows azure sql database 3: sql.open(connectionString, function (err, conn) { 4: if (err) { 5: console.log(err); 6: res.send(500, "Cannot open connection."); 7: } 8: else { 9: conn.queryRaw("SELECT * FROM [Resource]", function (err, results) { 10: if (err) { 11: console.log(err); 12: res.send(500, "Cannot retrieve records."); 13: } 14: else { 15: if (results.rows.length > 0) { 16: // begin to transform the records into table service 17: // recreate the table named 'resource' 18: client.deleteTable(tableName, function (error) { 19: client.createTableIfNotExists(tableName, function (error) { 20: if (error) { 21: error["target"] = "createTableIfNotExists"; 22: res.send(500, error); 23: } 24: else { 25: // transform the records 26: for (var i = 0; i < results.rows.length; i++) { 27: var entity = { 28: "PartitionKey": results.rows[i][1], 29: "RowKey": results.rows[i][0], 30: "Value": results.rows[i][2] 31: }; 32: client.insertEntity(tableName, entity, function (error) { 33: if (error) { 34: error["target"] = "insertEntity"; 35: res.send(500, error); 36: } 37: else { 38: console.log("entity inserted"); 39: } 40: }); 41: } 42: // send the 43: console.log("all done"); 44: res.send(200, "All done!"); 45: } 46: }); 47: }); 48: } 49: } 50: }); 51: } 52: }); 53: }); Now we can publish it to the cloud and have a try. But normally we’d better test it at the local emulator first. In Node.js SDK there are three build-in properties which provides the account name, key and host address for local storage emulator. We can use them to initialize our table service client. We also need to change the SQL connection string to let it use my local database. The code will be changed as below. 1: // windows azure sql database 2: //var connectionString = "Driver={SQL Server Native Client 10.0};Server=tcp:ac6271ya9e.database.windows.net,1433;Database=synctile;Uid=shaunxu@ac6271ya9e;Pwd=eszqu94XZY;Encrypt=yes;Connection Timeout=30;"; 3: // sql server 4: var connectionString = "Driver={SQL Server Native Client 11.0};Server={.};Database={Caspar};Trusted_Connection={Yes};"; 5: 6: var azure = require("azure"); 7: var storageAccountName = "synctile"; 8: var storageAccountKey = "/cOy9L7xysXOgPYU9FjDvjrRAhaMX/5tnOpcjqloPNDJYucbgTy7MOrAW7CbUg6PjaDdmyl+6pkwUnKETsPVNw=="; 9: var tableName = "resource"; 10: // windows azure storage 11: //var client = azure.createTableService(storageAccountName, storageAccountKey); 12: // local storage emulator 13: var client = azure.createTableService(azure.ServiceClient.DEVSTORE_STORAGE_ACCOUNT, azure.ServiceClient.DEVSTORE_STORAGE_ACCESS_KEY, azure.ServiceClient.DEVSTORE_TABLE_HOST); Now let’s run the application and navigate to “localhost:12345/was/init” as I hosted it on port 12345. We can find it transformed the data from my local database to local table service. Everything looks fine. But there is a bug in my code. If we have a look on the Node.js command window we will find that it sent response before all records had been inserted, which is not what I expected. The reason is that, as I mentioned before, Node.js perform all IO operations in non-blocking model. When we inserted the records we executed the table service insert method in parallel, and the operation of sending response was also executed in parallel, even though I wrote it at the end of my logic. The correct logic should be, when all entities had been copied to table service with no error, then I will send response to the browser, otherwise I should send error message to the browser. To do so I need to import another module named “async”, which helps us to coordinate our asynchronous code. Install the module and import it at the beginning of the code. Then we can use its “forEach” method for the asynchronous code of inserting table entities. The first argument of “forEach” is the array that will be performed. The second argument is the operation for each items in the array. And the third argument will be invoked then all items had been performed or any errors occurred. Here we can send our response to browser. 1: app.get("/was/init", function (req, res) { 2: // load all records from windows azure sql database 3: sql.open(connectionString, function (err, conn) { 4: if (err) { 5: console.log(err); 6: res.send(500, "Cannot open connection."); 7: } 8: else { 9: conn.queryRaw("SELECT * FROM [Resource]", function (err, results) { 10: if (err) { 11: console.log(err); 12: res.send(500, "Cannot retrieve records."); 13: } 14: else { 15: if (results.rows.length > 0) { 16: // begin to transform the records into table service 17: // recreate the table named 'resource' 18: client.deleteTable(tableName, function (error) { 19: client.createTableIfNotExists(tableName, function (error) { 20: if (error) { 21: error["target"] = "createTableIfNotExists"; 22: res.send(500, error); 23: } 24: else { 25: async.forEach(results.rows, 26: // transform the records 27: function (row, callback) { 28: var entity = { 29: "PartitionKey": row[1], 30: "RowKey": row[0], 31: "Value": row[2] 32: }; 33: client.insertEntity(tableName, entity, function (error) { 34: if (error) { 35: callback(error); 36: } 37: else { 38: console.log("entity inserted."); 39: callback(null); 40: } 41: }); 42: }, 43: // send reponse 44: function (error) { 45: if (error) { 46: error["target"] = "insertEntity"; 47: res.send(500, error); 48: } 49: else { 50: console.log("all done"); 51: res.send(200, "All done!"); 52: } 53: } 54: ); 55: } 56: }); 57: }); 58: } 59: } 60: }); 61: } 62: }); 63: }); Run it locally and now we can find the response was sent after all entities had been inserted. Query entities against table service is simple as well. Just use the “queryEntity” method from the table service client and providing the partition key and row key. We can also provide a complex query criteria as well, for example the code here. In the code below I queried an entity by the partition key and row key, and return the proper localization value in response. 1: app.get("/was/:key/:culture", function (req, res) { 2: var key = req.params.key; 3: var culture = req.params.culture; 4: client.queryEntity(tableName, culture, key, function (error, entity) { 5: if (error) { 6: res.send(500, error); 7: } 8: else { 9: res.json(entity); 10: } 11: }); 12: }); And then tested it on local emulator. Finally if we want to publish this application to the cloud we should change the database connection string and storage account. For more information about how to consume blob and queue service, as well as the service bus please refer to the MSDN page. Consume Service Runtime As I mentioned above, before we published our application to the cloud we need to change the connection string and account information in our code. But if you had played with WACS you should have known that the service runtime provides the ability to retrieve configuration settings, endpoints and local resource information at runtime. Which means we can have these values defined in CSCFG and CSDEF files and then the runtime should be able to retrieve the proper values. For example we can add some role settings though the property window of the role, specify the connection string and storage account for cloud and local. And the can also use the endpoint which defined in role environment to our Node.js application. In Node.js SDK we can get an object from “azure.RoleEnvironment”, which provides the functionalities to retrieve the configuration settings and endpoints, etc.. In the code below I defined the connection string variants and then use the SDK to retrieve and initialize the table client. 1: var connectionString = ""; 2: var storageAccountName = ""; 3: var storageAccountKey = ""; 4: var tableName = ""; 5: var client; 6: 7: azure.RoleEnvironment.getConfigurationSettings(function (error, settings) { 8: if (error) { 9: console.log("ERROR: getConfigurationSettings"); 10: console.log(JSON.stringify(error)); 11: } 12: else { 13: console.log(JSON.stringify(settings)); 14: connectionString = settings["SqlConnectionString"]; 15: storageAccountName = settings["StorageAccountName"]; 16: storageAccountKey = settings["StorageAccountKey"]; 17: tableName = settings["TableName"]; 18: 19: console.log("connectionString = %s", connectionString); 20: console.log("storageAccountName = %s", storageAccountName); 21: console.log("storageAccountKey = %s", storageAccountKey); 22: console.log("tableName = %s", tableName); 23: 24: client = azure.createTableService(storageAccountName, storageAccountKey); 25: } 26: }); In this way we don’t need to amend the code for the configurations between local and cloud environment since the service runtime will take care of it. At the end of the code we will listen the application on the port retrieved from SDK as well. 1: azure.RoleEnvironment.getCurrentRoleInstance(function (error, instance) { 2: if (error) { 3: console.log("ERROR: getCurrentRoleInstance"); 4: console.log(JSON.stringify(error)); 5: } 6: else { 7: console.log(JSON.stringify(instance)); 8: if (instance["endpoints"] && instance["endpoints"]["nodejs"]) { 9: var endpoint = instance["endpoints"]["nodejs"]; 10: app.listen(endpoint["port"]); 11: } 12: else { 13: app.listen(8080); 14: } 15: } 16: }); But if we tested the application right now we will find that it cannot retrieve any values from service runtime. This is because by default, the entry point of this role was defined to the worker role class. In windows azure environment the service runtime will open a named pipeline to the entry point instance, so that it can connect to the runtime and retrieve values. But in this case, since the entry point was worker role and the Node.js was opened inside the role, the named pipeline was established between our worker role class and service runtime, so our Node.js application cannot use it. To fix this problem we need to open the CSDEF file under the azure project, add a new element named Runtime. Then add an element named EntryPoint which specify the Node.js command line. So that the Node.js application will have the connection to service runtime, then it’s able to read the configurations. Start the Node.js at local emulator we can find it retrieved the connections, storage account for local. And if we publish our application to azure then it works with WASD and storage service through the configurations for cloud. Summary In this post I demonstrated how to use Windows Azure SDK for Node.js to interact with storage service, especially the table service. I also demonstrated on how to use WACS service runtime, how to retrieve the configuration settings and the endpoint information. And in order to make the service runtime available to my Node.js application I need to create an entry point element in CSDEF file and set “node.exe” as the entry point. I used five posts to introduce and demonstrate on how to run a Node.js application on Windows platform, how to use Windows Azure Web Site and Windows Azure Cloud Service worker role to host our Node.js application. I also described how to work with other services provided by Windows Azure platform through Windows Azure SDK for Node.js. Node.js is a very new and young network application platform. But since it’s very simple and easy to learn and deploy, as well as, it utilizes single thread non-blocking IO model, Node.js became more and more popular on web application and web service development especially for those IO sensitive projects. And as Node.js is very good at scaling-out, it’s more useful on cloud computing platform. Use Node.js on Windows platform is new, too. The modules for SQL database and Windows Azure SDK are still under development and enhancement. It doesn’t support SQL parameter in “node-sqlserver”. It does support using storage connection string to create the storage client in “azure”. But Microsoft is working on make them easier to use, working on add more features and functionalities. PS, you can download the source code here. You can download the source code of my “Copy all always” tool here. Hope this helps, Shaun All documents and related graphics, codes are provided "AS IS" without warranty of any kind. Copyright © Shaun Ziyan Xu. This work is licensed under the Creative Commons License.

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How can I force mod_perl to only allow one process per connection?

- by Charles Ma

I have a perl cgi script that's fairly resource intensive (takes about 2 seconds to finish). This is fine as long as only at most 4 or 5 of them are running at the same time and that's usually the case. The problem is that when a user clicks a link that calls this script, a new process is spawned to handle that connection request, so if a user clicks many times (if they're impatient), the server gets overloaded with new processes running and most of them are redundant. How can I ensure that only one instance of this process is running per host? This is an old system that I'm maintaining which uses an old framework for the frontend, and I would like to avoid using javascript to disable the button client side if possible. Converting this to fast-cgi perl is out of the question as well, again because this is an old system and adding fast-cgi to apache might break a lot of other things that this thing runs.

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Would a Socket Connection Outperform an Intarvaled Database Sweep and Requests?

- by Jascha

I'm building a small chat application to add to an existing framework. There will only be 20-50 users MAX at any one time. I was wondering if I could get away with updating a cache file containing (semi) live chat data for whichever users happen to be chatting just by performing timed queries and regular AJAX refreshes for new data as opposed to learning how to open and maintain a socket connection. I'm sure there are existing chat plug-ins out there. But I just had a hell of a time installing one and I could see building the whole damn thing taking just as much time as plugging one in. Am I off to a bad start? Thanks in advance -J (p.s. this is a semi closed network behind a php login so security isn't a great concern)

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How to configure MySQL connection properties with Spring, Hibernate 3.3 and c3p0?

- by sfussenegger

I am currently in the process of upgrading an application from Hibernate 3.2 to Hibernate 3.3. I though I'd stick with the default connection pool (Hibernate changed its default from Commons DBCP to c3p0) as I don't have any good reason to choose a non-default pool. At least non but having used DBCP before. The upgrade went pretty much without any problems so far. The only thing I can't get to work is passing properties to the underlying MySQL JDBC4Connection. Up to now, I used DBCP's BasicDataSource.addConnectionProperty(String,String) to pass properties (useUnicode=true, characterEncodin=UTF-8, characterSetResults=UTF-8, zeroDateTimeBehavior=convertToNull). However, I can't find any way to do the same with c3p0 other than including them in the JDBC URL. (That's something I'd like to avoid as I wanna keep the URL configurable without forcing users to include those parameters.) So far, I've tried to use a ConnectionCustomizer without success. Any other suggestions?

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How to detect open database connection with Hibernate / JPA?

- by John K

I am learning JPA w/Hibernate using a Java SE 6 project. I'd simply like to be able to detect if the connection between Hibernate and my database (MS SQL Server) is open. For example, I'd like to be able to detect this, log it, and try reconnecting again in 60 seconds. This is what I thought would work but isOpen() doesn't appear to be what I want (always is true): EntityManagerFactory emf = Persistence.createEntityManagerFactory("rcc", props); if (emf != null && emf.isOpen()) { EntityManager em = emf.createEntityManager(); if (em == null || !emf.isOpen()) // error connecting to database else ... This seems to me to be a simple problem, but I cannot find an answer!

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How to get reference to SqlConnection (or Connection string) in Castle ActiveRecord?

- by VoimiX

how can I get reference to current SqlConnection or Sqlconnection in config? I found http://svn.castleproject.org:8080/svn/castle/trunk/ActiveRecord/Castle.ActiveRecord.Tests/DifferentDatabaseScopeTestCase.cs and code private string GetSqlConnection() { IConfigurationSource config = GetConfigSource(); IConfiguration db2 = config.GetConfiguration(typeof(ActiveRecordBase)); string conn = string.Empty; foreach (IConfiguration child in db2.Children) { if (child.Name == "connection.connection_string") { conn = child.Value; } } return conn; } But I cant understand where I can find "GetConfigSource" implementation? Is this standart Castle helper function or not? I use these namespaces using Castle.ActiveRecord; using NHibernate.Criterion; using NHibernate; using Castle.Core.Configuration; using Castle.ActiveRecord.Framework;

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How can I use my own connection class with a strongly typed dataset?

- by Maslow

I have designed a class with sqlClient.SqlCommand wrappers to implement such functionality as automatic retries on timeout, Async (thread safety), error logging, and some sql server functions like WhoAmI. I've used some strongly typed datasets mainly for display purposes only, but I'd like to have the same database functionality that I use with my class. Is there an interface I can implement or a way to hook my command/connection class into the dataset at design or runtime? Or would I need to somehow write a wrapper for the dataset to implement these types of functions? if this is the only option could it be made generic to wrap anything that inherits from dataset?

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problem with crawl many url in .net: Server IP not ping. maybe bandwidth or http connection limit ex

- by Hamid

Hi to all I develop web crawling service (windows service / multi-thread) . its work fine, but sometimes my server network not response. and i can't ping server IP (from internet), but can ping by other network card (local ip) that not access to internet. after i open server with remote desktop and stop crawling service. i could ping. What's my problem? Bandwidth limit or max connection limit exceed or ??? how to prevent this issue? Note: when this problem occur, i open browser for browse web site, but can't open any website!!! Could you please help me. Thanks in advanced

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