[ClusterLabs] Corosync maximum nodes

Jan Friesse jfriesse at redhat.com
Mon Jan 30 06:47:51 EST 2017

> Hello!
> I'm very sorry to disturb you with such question but I can't find
> information if there is maximum nodes' limit in corosync? I've found a bug
> report https://bugzilla.redhat.com/show_bug.cgi?id=905296#c5 with "Corosync
> has hardcoded maximum number of nodes to 64" but it was posted 4 years
> ago..

This limit is gone in 2.x, but it doesn't mean corosync is able to 
handle much more without finetuning.

> If anybody knows how many nodes I can add to future HA cluster?


But honestly, as Chrissie told, pacemaker-remote is usually better way 
to go (as long as you are not planning to use dlm on all nodes).


> Any tips or links would be much appreciated.
> Thank you!
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