Limits on memory usage

unifiedquarks · 08-18-2011, 03:41 AM

we have SL5.5 on our computing nodes.

Sometimes, users runs too many computations, and servers become unreachable due to lack of enough memory.

I want to restrict total memory usage of users to a little bit lower value of physical memory, so under all circumstances the servers will have enough memory to run system services.

I tried to limit several parameters in limits.conf file. But they didn't work.

How can I limit total memory usage of users?

lystor · 08-18-2011, 06:52 AM

Quote:

Originally Posted by unifiedquarks

we have SL5.5 on our computing nodes.

Sometimes, users runs too many computations, and servers become unreachable due to lack of enough memory.

I want to restrict total memory usage of users to a little bit lower value of physical memory, so under all circumstances the servers will have enough memory to run system services.

I tried to limit several parameters in limits.conf file. But they didn't work.

How can I limit total memory usage of users?

Hi
PAM module pam_limits with configuration file
/etc/security/limits.conf works for me.

Limits are implemented per-login, not globally.

unifiedquarks · 08-18-2011, 09:05 AM

I need global settings.

While I searching on google, I found something related with "cgroups". That may be a solution.