[Linux-HA] OS process priority of monitor action
christian at rishoj.net
Wed Nov 7 04:19:39 MST 2007
On 11/6/07, Andreas Mock <Andreas.Mock at web.de> wrote:
> Hi all,
> after many days without dopey questions from me I'm back: ;-)
> All questions concerning HAv2 (2.1.2-x).
> Is the resource agent action 'monitor' done with a higher
> OS process priority?
> I'm asking about that, because we had the following phenomena:
> 1) (Very) High load on server
> 2) Monitor action initiated
> 3) Monitor action timed out because of high load
> 4) Stopping of resource initiated because of resource failover
> 5) Stop action timed out
I've been seeing the same pattern of events, and my solution has been
to try harder to keep the load levels low, e.g. preventing table locks
in the database, throwing out resource hungry OCFS2 etc. However, my
precautions merely raise the threshold, and do not prevent the
What might a general solution be? Letting Heartbeat ignore monitor
timeouts during periods of excessive load?
More information about the Linux-HA