Our Moodle backups were running fine up until a few weeks ago. We have 3 courses with basically the same course content but different number of users.
Currently when we run the backup, only 2 of the courses are backed up. The course with the most users does not back up. We do not get an error message.
In the logs it says "02:13 AM:33 zipping files" and that is the last line in the log for that course. The backup then goes on to backup the other 2 courses successfully. When I try to backup the course manually, it gets to "writing questions and categories" and then it stops. Again no error message and no zip file is created.
I tried running the manual backup with debug on but still did not get any other error message.
I have contacted our web host about the php.ini file settings but it is hard to tell whether it is timing out or it is memory or there is another cause. I am still waiting to hear back from them.
Any thoughts on how I can troubleshoot this further? I can't seem to find any other logs to look at to see why it is failing.