[LON-CAPA-users] Mysterious "Internal Error"

Carl Lira lira at egr.msu.edu
Fri Aug 28 13:02:05 EDT 2015

There was a bug #6653 that was fixed in loncapa ver 2.11.  What version are
you running? Click the little computer icon to see the loncapa version
number. I see a couple other bugs reported for maxima with unordered
responses for example.

-----Original Message-----
From: lon-capa-users-bounces at mail.lon-capa.org
[mailto:lon-capa-users-bounces at mail.lon-capa.org] On Behalf Of Rex Abert
Sent: Friday, August 28, 2015 12:10 PM
To: lon-capa-users at mail.loncapa.org
Subject: [LON-CAPA-users] Mysterious "Internal Error"

My students have been encountering the following error when working some

Code ran too long. It ran for more than 10 seconds. timeout at
/home/httpd/lib/perl//Apache/run.pm line 122.

This occurred while running: 


This error occurred while processing response 11 in part 0 The error
occurred on host tccfll1

The student sees the generic message "An internal error has occurred, please
try again later."

There is no reason the code should be running long, such as an infinite
loop.  The error occurs with many different types of problems.  The one
common thread is that maxima is called, either as a formula response or
somewhere in a script.

Sometimes I get the same error in Authoring space.  The first time an edited
question is displayed, I sometimes receive this error.  I click "New
Randomization" and all is well.  

Any thoughts on where to start looking to see if we can debug this?  Anyone
else having similar issues?

Rex Abert
Associate Professor of Mathematics
Tallahassee Community College
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