Hello All, i have been facing a problem and i tried my level best to
figure out the issue but no luck. I have tried enough googling but still
no luck.
So, i ma writing here to see if i can get any help.
LAMP Stack:
I am using a LAMP Stack:
Opensuse 11.4: Linux lms1060 2.6.37.6-0.5-default #1 SMP 2011-04-25
21:48:33 +0200 x86_64 x86_64 x86_64 GNU/Linux
Apache: 2.2.17
MySQL: 5.5.8
PHP: 5.3.5
Architecture:
We are using this LAMP stack to run Moodle. As per the architecture
Moodle Config files and Moodle Data directory both are on NFS Server.
which is mounted on the VM i am running OpenSuse 11.4. This NFS is build
on MSS 2008 R2 cluster and we are using Microsoft's NFS software version
3.
Situation:
whenever there is load on the server the avg load goes high. High mean
very high. VM becomes unusable. the only option left is to reset the VM
to get the things normal. Even if I run bzip2 while apache is serving it
leaves the apache processes in "D" state and it sometime never comes
back. To fix this issue we had added one more virtual CPU to the VM. but
my confusion is i was running the same thing when everything was native
means all moodle file and moodle data was local to VM and it was running
fine with one virtual CPU. My opinion there is flaw in architecture but
i am not able to prove that. Please see the screenshot attached and log
files attached to this.
Recently I migrated one our new VM to this architecture and it also
started giving the same issue. Load Average always goes high if you any
CPU extensive work.
Any suggestion or help or testing idea would help me in this situation.
Very sorry for writing so big email
--
satyajit