WebFileUploader problem running on web farm

3 replies. Last post: November 25, 2010 10:06 AM by Yudi
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Darren BuddMember

Hi,

 

I am experiencing problems here with the WebFileUploader when running on a web farm, where requests go to different noes.  I am getting a 500 internal server error, and in the event log is reporting "Unable to obtain upload context for '4fd0ab395f714cd7b7e7722b57e961a0'. The application may have been restarted, or your session has expired. ".

 

I ran a trace on all request going out, and it seems the only time this occurs is when 2 requests generated by the upload component go to different nodes on the web farm.  For example:

 

UploadFile.aspx?GUID=42b9a6911acd4a83a8b9f4b0c84a91e7&HashCode=1&FileName=scenario_box_grey_bg.gif&PostedFile=true

 

and

WebFileUploaderHttpHandler.axd?GUID=42b9a6911acd4a83a8b9f4b0c84a91e7&t=1290615650618

 

Is this a known issue?  Is there an easy resolution?  We need to resolve this quickly.

 

thanks

 

Darren


 

 

 

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