Duplicate Selective Release

Analyst asked me to look at the server logs for a case where students were getting system exceptions. Armed with the JSESSIONID, I found many cases in the webct.log of an error called: “Stack size too large”. In my old email, I found a September 2010 discussion with Rajini Prabhu and Mike Cooling about thread-dump analyzers. In it Rajini told me:

Turns out the “Stack size too large” error is caused by duplicate release criteria on anything in a section (assignments, assessments, discussions, folders, etc).

Looks like 9 months later, the root cause was not identified and resolved.

The analyst found this in the selective release for a quiz:

June 20, 2011 12:06 PM Until June 26, 2011 11:00 PM
June 20, 2011 12:06 PM Until June 26, 2011 11:00 PM
Boolean Expression And UserID Equals user1
Boolean Expression And UserID Equals user1

When the duplicates were removed, the errors stopped. No idea why a designer or instructor would do this except that it probably was to set up a makup quiz for user1.

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