[ClusterLabs] corosync/pacemaker on ~100 nodes cluser

Klaus Wenninger kwenning at redhat.com
Tue Aug 23 12:46:45 EDT 2016

On 08/23/2016 06:26 PM, Radoslaw Garbacz wrote:
> Hi,
> I would like to ask for settings (and hardware requirements) to have
> corosync/pacemaker running on about 100 nodes cluster.
Actually I had thought that 16 would be the limit for full
For larger deployments pacemaker-remote should be the way to go. Were
you speaking of a cluster with remote-nodes?

> For now some nodes get totally frozen (high CPU, high network usage),
> so that even login is not possible. By manipulating
> corosync/pacemaker/kernel parameters I managed to run it on ~40 nodes
> cluster, but I am not sure which parameters are critical, how to make
> it more responsive and how to make the number of nodes even bigger.
> Thanks,
> -- 
> Best Regards,
> Radoslaw Garbacz
> XtremeData Incorporation
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