SPSS On-demand report generation fails if the process log exceeds 3mb or roughly 16600-16700 lines.
The page displays the message "An error occurred. Please try refreshing the page."
SPSS is using a third-party asp component to generate the reports. The issue occurs when the 90 second processing timeout for this component is exceeded.
The solution is to increase the asp component timeout value "AsyncPostBackTimeout". The default value for this setting is 90 seconds. This can be increased to 180 or as high as 600 if required. Exactly how this is done depends on the version of Sharepoint that is being used.
Steps to be performed.
For SharePoint 2003:
For SharePoint 2007:
For SharePoint 2010:
For SharePoint 2013: