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• SharedCache vs Memcached For NHibernate With ASP.NET MVC

  - by Yoann. B

  Hi, Which shared cache provider should i use for my asp.net mvc working with NHibernate ? ShardCache NHibernate Provider Memcached NHibernate Provider Thanks.

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• debugging JBoss 100% CPU usage

  - by NateS

  Originally posted on Server Fault, where it was suggested this question might better asked here. We are using JBoss to run two of our WARs. One is our web app, the other is our web service. The web app accesses a database on another machine and makes requests to the web service. The web service makes JMS requests to other machines, aggregates the data, and returns it. At our biggest client, about once a month the JBoss Java process takes 100% of all CPUs. The machine running JBoss has 8 CPUs. Our web app is still accessible during this time, however pages take about 3 minutes to load. Restarting JBoss restores everything to normal. The database machine and all the other machines are fine, only the machine running JBoss is affected. Memory usage is normal. Network utilization is normal. There are no suspect error messages in the JBoss logs. I have set up a test environment as close as possible to the client's production environment and I've done load testing with as much as 2x the number of concurrent users. I have not gotten my test environment to replicate the problem. Where do we go from here? How can we narrow down the problem? Currently the only plan we have is to wait until the problem occurs in production on its own, then do some debugging to determine the cause. So far people have just restarted JBoss when the problem occurred to minimize down time. Next time it happens they will get a developer to take a look. The question is, next time it happens, what can be done to determine the cause? We could setup a separate JBoss instance on the same box and install the web app separately from the web service. This way when the problem next occurs we will know which WAR has the problem (assuming it is our code). This doesn't narrow it down much though. Should I enable JMX remote? This way the next time the problem occurs I can connect with VisualVM and see which threads are taking the CPU and what the hell they are doing. However, is there a significant down side to enabling JMX remote in a production environment? Is there another way to see what threads are eating the CPU and to get a stacktrace to see what they are doing? Any other ideas? Thanks!

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• How to reference the DisplayTemplates defined in an Area from main project?

  - by Robert Mao

  I defined a few display templates for classes and they work well when I put them in views/shared/DisplayTemplates. However after I move them into an area, looks like ASP.NET MVC won't look inside Area to find the templates. How to reference the DisplayTemplates defined in an Area from main project? Is that a good practise?

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• Wix CopyFile only on target machine

  - by Burt

  I need to be able to copy a file that exists on the target machines hard-drive based on a registry setting that holds the folder path. I have been trying to get this going for a day or two and am having difficulty, can anyone help? Thanks, B

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• Multi-tenant application on Windows Azure

  - by Alexey Zakharov

  Hi guys, We want to create multitenant application with shared database table structure. Currently with standard SQL Server we could achieve that with providing TenantID for each table. Could we achieve the same on Windows Azure, but without TenantIDs? Best regards, Alexey Zakharov

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• Is DiskDrive Signature unique?

  - by Ananth

  I am currently using WMI to query various details about the underlying hardware in order to uniquely identify a machine. To this end, I came across a field called "Signature" under "Win32_DiskDrive". Is this signature unique across machines (globally)? Can this be used reliably to identify the machine? Thanks, Ananth

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• Executing Custom Actions immediately in WIX

  - by jbloomer

  Is there any way to execute a custom action in WIX as soon as the first dialog (welcome) appears? The requirement is to check prerequisites, and some of those require a custom action. The custom action could be executed as we click to the next dialog, but then the standard WIX prereqs are determined apart from our custom prereq. (The custom action we need is to check that IIS 6 Metabase Compatibility is turned on and a registry search does not work on x64 machines with a 32-bit installer)

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• LiteSpeed vs Apache httpd

  - by Luke

  I've been hearing things lately about the LiteSpeed webserver as being a drop-in replacement for Apache webserver. Even my web host is going to replace their shared webhost environment with LiteSpeed (I'm currently not sure if I must be happy about that or not). Does anyone have any experience with the LiteSpeed webserver (both in development and production)? It would be appreciated if you could share your experience here.

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• Smallest executable for Windows

  - by Andrew Warren

  Hi I need to create a very simple GUI application for Windows(open a file, do some changes based on user input, upload the file to an intranet server). The client company has the latest release versions of Java SE, .NET and Adobe AIR installed on all their machines. And their #1 requirement is to have the smallest possible package for xcopy deployment. So which of the 3 listed platforms should I use? Another option of course is a native exe. Thanks, Andrew

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• Ensure exclusive access to webservice

  - by Henrik P. Hessel

  Just to be on the safe side, what's the best practice to ensure that only my application has access to my webservice, which is hosted on a public server? Should I implement I shared key or something? My webservice is hosted on Googles App Engine and my Application runs on iPhones and iPads. If you need further information, just ask. Thanks, Henrik

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• Sending error logs through C# desktop application

  - by Mustafa A. Jabbar

  Dear All, lately our customers are experiencing unexpected crashes. We are already logging the errors on their local machines. Is there a mechanism to enable them to "send error log" somehow when the application crashes or when unexpected behavior takes place? In other word how do I know that the application freezed or hung or crashed so I can send something, and override the normal "not responding" windows message? Regards,

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• what is more secure -- Data transfer using socket programming OR SSH/SCP/FTP

  - by Octopus

  I am still learning socket programming (using Perl) but I have both options ( socket programming and SSH/SCP/FTP) available to transfer the data from remote machines to my local servers. But I have to select one which is more secure in terms of data transfer. Any suggestions.

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• Fixed point math in c#?

  - by x4000

  Hi there, I was wondering if anyone here knows of any good resources for fixed point math in c#? I've seen things like this (http://2ddev.72dpiarmy.com/viewtopic.php?id=156) and this (http://stackoverflow.com/questions/79677/whats-the-best-way-to-do-fixed-point-math), and a number of discussions about whether decimal is really fixed point or actually floating point (update: responders have confirmed that it's definitely floating point), but I haven't seen a solid C# library for things like calculating cosine and sine. My needs are simple -- I need the basic operators, plus cosine, sine, arctan2, PI... I think that's about it. Maybe sqrt. I'm programming a 2D RTS game, which I have largely working, but the unit movement when using floating-point math (doubles) has very small inaccuracies over time (10-30 minutes) across multiple machines, leading to desyncs. This is presently only between a 32 bit OS and a 64 bit OS, all the 32 bit machines seem to stay in sync without issue, which is what makes me think this is a floating point issue. I was aware from this as a possible issue from the outset, and so have limited my use of non-integer position math as much as possible, but for smooth diagonal movement at varying speeds I'm calculating the angle between points in radians, then getting the x and y components of movement with sin and cos. That's the main issue. I'm also doing some calculations for line segment intersections, line-circle intersections, circle-rect intersections, etc, that also probably need to move from floating-point to fixed-point to avoid cross-machine issues. If there's something open source in Java or VB or another comparable language, I could probably convert the code for my uses. The main priority for me is accuracy, although I'd like as little speed loss over present performance as possible. This whole fixed point math thing is very new to me, and I'm surprised by how little practical information on it there is on google -- most stuff seems to be either theory or dense C++ header files. Anything you could do to point me in the right direction is much appreciated; if I can get this working, I plan to open-source the math functions I put together so that there will be a resource for other C# programmers out there. UPDATE: I could definitely make a cosine/sine lookup table work for my purposes, but I don't think that would work for arctan2, since I'd need to generate a table with about 64,000x64,000 entries (yikes). If you know any programmatic explanations of efficient ways to calculate things like arctan2, that would be awesome. My math background is all right, but the advanced formulas and traditional math notation are very difficult for me to translate into code.

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• Clean Web.Config file in Asp.NET 4.0?

  - by Braveyard

  Okay, I am wondering having clear web.config file could be good but you know some shared web hosting companies don't allow us to touch things like machine.config and etc. So If a lot of things have been moved onto machine.config, then will we be allowed to change things like we used to through web.config file.

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• Log files for group policy application deployment

  - by Cyril

  I'm looking into using group policy to deploy a couple of applications. I want to have the log of each installation written to a shared folder on a file server for tracking purposes. I can create the log if I pass the appropriate parameters. For example: msiexec /i Package.msi /l*vx c:\Package.log However using group policy for the deployment, you can't pass any parameters to the installation file. Is there anyway to specify the log file location in the process of creating the msi package?

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• English Grammar Parsing in PHP (Link Grammar)

  - by Chris T

  Is there anyway to use the Link Grammar or AbiSource grammar checker in PHP (or C# but I'd prefer php)? I need to have a tree structure for english sentences. Any ideas? The only things I found were in C and I can't use them on a shared host.

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• I'm trying to use CSS to position my Flex app but it's not working

  - by ben

  I'm trying to position my Flex app so that its in the bottom 40% vertically, and the left 70% horizontally. This is how I define the flash section in CSS: #flashContent { display:none;position:absolute; top:60%;width:70%;height:40%;} Here is the HTML: <div id="flashContent"> <p> To view this page ensure that Adobe Flash Player version 10.0.0 or greater is installed. </p> <script type="text/javascript"> var pageHost = ((document.location.protocol == "https:") ? "https://" : "http://"); document.write("<a href='http://www.adobe.com/go/getflashplayer'><img src='" + pageHost + "www.adobe.com/images/shared/download_buttons/get_flash_player.gif' alt='Get Adobe Flash player' /></a>" ); </script> <noscript> <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="434" height="100%" id=app name> <param name="movie" value=link_to_the_file /> <param name="quality" value="high" /> <param name="bgcolor" value="#ffffff" /> <param name="allowScriptAccess" value="sameDomain" /> <param name="allowFullScreen" value="true" /> <!--[if !IE]>--> <object type="application/x-shockwave-flash" data=link_to_the_file width="434" height="100%"> <param name="quality" value="high" /> <param name="bgcolor" value="#ffffff" /> <param name="allowScriptAccess" value="sameDomain" /> <param name="allowFullScreen" value="true" /> <!--<![endif]--> <!--[if gte IE 6]>--> <p> Either scripts and active content are not permitted to run or Adobe Flash Player version 10.0.0 or greater is not installed. </p> <!--<![endif]--> <a href="http://www.adobe.com/go/getflashplayer"> <img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" alt="Get Adobe Flash Player" /> </a> <!--[if !IE]>--> </object> <!--<![endif]--> </object> </noscript> </div> But it's still just appearing in the top-left corner. What am I doing wrong? Thanks for reading.

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• Sharepoint webpart combobox of lists

  - by ifunky

  Hi, I have a webpart that works off of a list but what I'm trying to do create a dropdown that contains a list of sharepoint lists so that when the user edits the page and selects 'modify shared webpart' they are able to choose a list item and that gets parsed back to the webpart. Any examples or links to examples appreciated! Thanks Dan

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• What is the best way to documentate a system metaphor?

  - by SDReyes

  A metaphor help us to communicate with our project stakeholders, using a shared set of concepts and analogies. we develop them all the time, in one way or another. even the XP- programming highly recommend to get it defined since project start. How do you write such thing down in a document (specially if it already exists)? maybe a dictionary-like approach?

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• What is the best way to document a system metaphor?

  - by SDReyes

  A metaphor help us to communicate with our project stakeholders, using a shared set of concepts and analogies. we develop them all the time, in one way or another. even the XP- programming highly recommend to get it defined since project start. How do you write such thing down in a document (specially if it already exists)? maybe a dictionary-like approach? UPDATE: perhaps a thesaurus would do it better (synonyms sum).

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• Creating GUI for Bantumi game

  - by owca

  I've written backend for simple Bantumi game. Now I'd like to create a simple GUI for it, so that it would look like this : How to start ? What layout should I use, and what type of component each element should be? Classes : Basket Player Game Main Shared

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• Problem when compiling "vcl forms application" in turbo delphi for .net.

  - by Victor

  I have Turbo delphi for .net, and every time that I try to compile a vcl forms application I receive a send/close error message. It has nothing to do with with the applications, because they compile fine in other machines. The error message accuses ntdll.dll. I can compile Windows Forms Application with no problems.

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• Admin site ASPDotNetStoreFront not opening

  - by ria

  I am using ASPDotNetStoreFront demo and i cannot login to the admin site. If i try logging in using the admin user on the front end i can login so that means the credentials are correct. When i enter credentials on the admin login screen the same page is refreshed. I have tried setting it up on different machines, tested on different browsers but the same issue persists. Please suggest...

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• 404 in ASP.NET MVC with Integrated Pipeline mode

  - by David Martines

  IIS 7.0 (Shared Hosting) ASP.NET 2.0 Integrated Pipeline mode MVC 1.0 I get a 404 on every url except /default.aspx. I have this in my web.config: <system.webServer> <defaultDocument enabled="true"> <files> <clear /> <add value="Default.aspx" /> </files> </defaultDocument> <directoryBrowse enabled="false" /> <validation validateIntegratedModeConfiguration="false" /> <handlers> <add name="ScriptHandlerFactory_asmx" verb="*" path="*.asmx" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="ScriptHandlerFactory_axd" verb="*" path="*_AppService.axd" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="ScriptResourceHandler" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="MvcHttpHandler" verb="*" path="*.mvc" type="System.Web.Mvc.MvcHttpHandler, System.Web.Mvc, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="ErrorLogPageFactory" verb="POST,GET,HEAD" path="elmah.axd" type="Elmah.ErrorLogPageFactory, Elmah" /> </handlers> <modules runAllManagedModulesForAllRequests="true"> <remove name="ScriptModule" /> <remove name="UrlRoutingModule" /> <remove name="ErrorLog" /> <remove name="UnitOfWorkModule" /> <add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="UnitOfWorkModule" type="MusicCompany.Infrastructure.UnitOfWorkModule, MusicCompany.Infrastructure" /> <add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" /> </modules> The only unusual thing to me is the defaultDocument. It seems I need it because of the way the host (shared hosting) is set up (?) Any clues? Thanks

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• session_id() in PHP

  - by Tom

  Hi, I am just trying the session_id function in PHP and I thought that it was unique for each machine that used the website? However, my flatmate and I have the same session_id for on two separate machines. I'm just using session_id() to create the session - am I doing it correctly? Thanks Tom

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