Statistics do not count all responses

Date: Thu, 24 May 2007 08:05:14 +0200
From: "Gregory Doyle" <Gregory.Doyle@uct.ac.za>

Hi
Not sure if anyone has come across this before.
Published a quiz (7 parts, no question pools involve, every question 0
marks, anonymous grading, not send to gradebook, 1 submission only etc)

On the Statistics page, (Viewing All Submissions) number of submissions
= 348 but the responses for the MCQ and Short Answer questions add up to
around 238 only. So what happened to the other 110 responses?

Went to the questions page and checked individual questions, there are
348 responses (copy and pasted to Excel to make sure its correct, and it
is)

Any ideas?

Thanks
greg

Date: Sat, 02 Jun 2007 09:40:54 +0200
From: Stephen Marquard <stephen.marquard@uct.ac.za>

Karen Tsao wrote:
Hi Stephen,
Thanks for providing these information. I think I know where it goes wrong.
In AssessmentGradingFacadeQueries.java, there is a line:
criteria.setMaxResults(10000)
It restricts/truncate the returning data. Lydia said this is added by Indiana U in 2.1.
There is one comment explains the reason to set the max results:
//large list cause out of memory error (java heap space)
However, we don't even know if we will still get this error for later version
because Sakai requires larger the heap size now. Could you please help me to
try it out? Just change
return criteria.setMaxResults(10000).list();
to
return criteria.list();
Please let me know if you get out of memory error. If not, please let me know if the
statistics page looks fine..

Hi Karen

That seems to fix it, and we didn't get any out of memory errors in catalina.out. Our JAVA_OPTS are

-server -Xmx1200m -XX:MaxPermSize=256m -XX:+UseAdaptiveSizePolicy -XX:GCTimeRatio=49 -XX:ThreadStackSize=256

Could you get this fix into the 2-4-x branch as well as trunk?

Cheers
Stephen