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Error: Report is unavailable or session has expired. When Exporting to PDF.

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Shawn
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Shawn asked on 30 Dec 2009, 04:59 PM
When we generate large reports (150 + pages) and then try to export those reports as PDFs, we get the following errror: Report is unavailable or session has expired.

We have increased the seession timeout to 60 in the web.config

<

 

sessionState timeout="60" />

Any ideas?

 

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Steve
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answered on 04 Jan 2010, 12:52 PM
Hi Shawn,

Do you have this problem only with large reports or on all reports in your app? We have listed all known reasons for this error message in the following KB article: Report is unavailable or session has expired error message - please review it and let us know how it goes.

Regards,
Steve
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Shawn
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answered on 04 Jan 2010, 01:01 PM
Thanks for replying.

This only happens on large reports when it is running on the web server.  I have a report that is 166 pages.  It runs on my laptop, but it fails on the webserver.  The report is generated from a SQL Server database running on the web server. 
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Steve
Telerik team
answered on 05 Jan 2010, 04:44 PM
Hello Shawn,

Thank you for the clarification. I believe it is #2 from the KB article I referenced in previous post - insufficient memory for the asp.net process, due to which the application pool is recycled. Check how much memory does this report utilize and make sure you have enough available on your web server.

Best wishes,
Steve
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