Today we encountered a problem on one of our servers. Phpmyadmin did not want to launch and our customers had difficulties logging in to our application.

After some research, I found that the problem lies in the /var/log folder.
Just get rid of all unneeded .gz / .bz2 files and the issue should be resolved.

Also, we have put on our to do list : check why on earth we are creating that many log files