Re: [HTCondor-users] spontaneous reboots after enabling cgroups

[Chris Filo Gorgolewski <krzysztof.gorgolewski@xxxxxxxxx>]

On Thu, Jun 27, 2013 at 2:31 AM, Jason Ferrara <jason.ferrara@xxxxxxxxxxxxx> wrote:

I have a pool of machines running CentOS 6.4, Kernel 2.6.32-358, and HTCondor 7.9.4.

Today, in order to try to stop jobs which underestimate their memory usage from making the machines swap a lot and get slow, I enabled cgroups and set

CGROUP_MEMORY_LIMIT_POLICY = soft
RESERVED_MEMORY = 1024

I have similar issue (jobs which underestimate their memory usage), but I wasn't sure that CGROUP will solve this. Do I understand correctly that setting CGROUP_MEMORY_LIMIT_POLICY to either "soft" or "hard" will disable swapping for all condor jobs?

Furthermore, the free memory used in the "soft" policy is calculated based on the current system state not taken from the RESERVED_MEMORY variable?

Best,

Chris