[Pacemaker] active/active

[Alan Rowe]

I'm looking for recommendation for this problem: I have an n-node cluster and in every one of the nodes, I want to know when membership changes (up or down).
Obviously I can do this by polling.. but is there a better way?
Maybe snmp (but that section of the manual is empty)?
Maybe by having cloned resources (one per node).. but I'm not sure exactly how..
advice?
alan
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