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Weird error

Last post 08-04-2011, 9:34 AM by andybrummer. 2 replies.


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07-29-2011, 12:53 PM 69011

andybrummer
Joined on 07-29-2011
Posts 2

Weird error

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We have this control on a web farm with the temp folder pointed to a share on a file server. We are trying to migrate from our current file server running 2003 to one running 2008R2. When we do that migration we start getting ittermitent failures. Here is the stack trace from one of them.

When we take one of the servers out of the farm, the issue goes away and when we move back to the 2003 server there are no issues.

System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.IO.FileNotFoundException: Unable to find the specified file.

  at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)

  at System.IO.File.Move(String sourceFileName, String destFileName)

  at CuteWebUI.UploaderFileSystemProvider.Persist(Guid guid)

  at CuteWebUI.UploaderBase.a(UploaderProvider A_0, UploaderEventArgs A_1)

  at CuteWebUI.UploaderBase.a(String A_0)

  at CuteWebUI.UploaderBase.System.Web.UI.IPostBackDataHandler.RaisePostDataChangedEvent()

  at System.Web.UI.Page.RaiseChangedEvents()

  at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

  at System.Web.UI.Page.HandleError(Exception e)

  at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

  at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

  at System.Web.UI.Page.ProcessRequest()

  at System.Web.UI.Page.ProcessRequest(HttpContext context)

  at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

  at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

08-01-2011, 8:00 AM 69118 in reply to 69011

Kenneth
Joined on 02-13-2008
Posts 3,886

Re: Weird error

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Hi andybrummer,

Try set the temp folder to a locatioin which not in the web farm environment, does it work? Preferably a fixed IP address.

Regards,

ken

08-04-2011, 9:34 AM 69269 in reply to 69118

andybrummer
Joined on 07-29-2011
Posts 2

Re: Weird error

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We've got it figured out and I'm surprised this isn't more common. The issue was that we moved from 2003 server to 2008 R2 for all the servers and ran into this fun stuff. http://technet.microsoft.com/en-us/library/ff686200(WS.10).aspx

The saves worked fine, but every once in a while the upload everything event would fire on a different web server event and our reads would get a stale list. The work around we have now is setting everything to smb1.0. We tried adjusting all the caches to 0, but there were still random errors.

Now that we have everything set to 1.0 we are running into performance problems with our database backups since they go to the same server. We are working on tweaking everything to get the right mix of protocols to get everything running. I'm beginning to think if we could eliminate the disk cache from the uploads and just stream directly to the database it would simplify our setup.