[Pacemaker] corosync, ocfs2_controld.pcmk insane?

Matthew O'Connor matt at ecsorl.com
Fri May 11 14:24:48 UTC 2012


Just a quick update - kill -9 on the ocfs2_controld.pcmk process 
silenced the issue.  Corosync is quiet again.  Logs reported that 
syslogd was rate-limiting incoming log messages from ocfs2_controld.

On 05/11/2012 10:19 AM, Matthew O'Connor wrote:
> This might be the wrong place to ask this question, but between 
> corosync, OCFS2 and Pacemaker, under what circumstances would corosync 
> start consuming mass quantities of CPU?  It started last night around 
> 30%, and this morning is up around 110%.  40% is user, 47% system.  
> ocfs2_controld.pcmk is running at 50% CPU utilization.  I've seen this 
> before on one of my other test-lab clusters, as though something is 
> spinlocking when there is a failure with some communication between 
> the (at present) two nodes.  Indeed, last night I was testing some 
> failover cases, and the problem actually seemed to start after 
> hard-rebooting one of the members.
>
> Using Pacemaker 1.1.5, Corosync 1.3.0, and ocfs2_controld (Aug 19 
> 2011) on Ubuntu Server 11.10 amd64.
>
> Thanks!!
> -- Matt
>
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