I upgraded from 3.8.0 to 3.8.1 and added graphviz support in the wee
hours of last night. All seemed fine. I was able to graph ticket
relationships and I worked until about lunch before I encountered a
problem where each webpage is blank. I am definitely connecting to the
web server, but nothing is displayed. I have “Out of memory! Callback
called exit.” Errors in my apache2 logs. My system is Debian running in
a vm with about 700mb of ram available and I have about 2000 tickets.
I found the following information (below) which seems to pertain to my
situation. My question is (and no offense to Sebastien as I really
appreciate his posting this solution), but is this the appropriate
action to take? Do I simply need more RAM or is this an error with the
schema? I am reticent to go making changes that will come back to haunt
Thus far in an attempt to resolve the problem I have only restarted
apache2 and the server. Neither made any difference.
Re: Problem after an upgrade to 3.8.1 Remove Highlighting [In reply to]
The problem looks like the session table is being corrupted.
I modified the schema using: ALTER TABLE sessions CHANGE a_session
Now everything seems to be working fine.
By the way, I am also using a virtual machine. 256Mo were enough for
3.8.0. I increased the available memory to 512Mo but this did not
solved the problem.
I hope this trick will solve your problem.
I had this issue as well - luckily I was running in a Virtual Machine,
upped the allocated memory from 1Gig to 2Gig and the problem went
looks like RT is a bit of a memory pig (in the nicest possible way!)