Hello All!
My Moodle site is run on an Ubuntu 10.04 x64 server with 2GB of RAM. It is Virtualized and runs on a VMWare ESXi 4.1.1 server. I have this on a home brewed OpenFiler iSCSI and for the longest time, this configuration worked without major flaws.
Over the Summer we upgraded our Moodle from 1.9 to 2.1 and now we have an issue with Apache and the memory usage. It seems like when we get a group of students on the server, it will spawn many apache2 instances, the memory usage goes up and then they don't seem to die off and release the memory.
I have tried editing the apache2 config to try to tweak it to what I found on the moodle.org site, but nothing seems to be helping.
It's odd that it didn't do this with the 1.9 version of Moodle with virtually the same setup.
Matt