[ClusterLabs] Is it possible to downgrade feature-set in 2.1.6-8

Ken Gaillot kgaillot at redhat.com
Mon Feb 26 10:28:10 EST 2024

On Thu, 2024-02-22 at 08:05 -0500, vitaly wrote:
> Hello. 
> We have a product with 2 node clusters.
> Our current version is using Pacemaker 2.1.4 the new version will be
> using Pacemaker 2.1.6
> During upgrade failure it is possible that one node will come up with
> the new Pacemaker and work alone for a while.
> Then old node would later come up and try to join the cluster.
> This would fail due to the different feature-sets of the cluster
> nodes. The older feature-set would not be able to join the newer
> feature-set.
> Question: 
> Is is possible to force new node with Pacemaker 2.1.6 to use older
> feature-set (3.15.0) for a while until second node is upgraded and is
> able to work with Pacemaker 2.1.6?


> Thank you very much!
> _Vitaly
Ken Gaillot <kgaillot at redhat.com>

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