[ClusterLabs] Running several instances of a Corosync/Pacemaker cluster on a node
Bogdan Dobrelya
bdobrelia at mirantis.com
Tue Apr 26 08:33:00 UTC 2016
Is it possible to run several instances of a Corosync/Pacemaker clusters
on a node? Can a node be a member of several clusters, so they could put
resources there? I'm sure it's doable with separate nodes or containers,
but that's not the case.
My case is to separate data-critical resources, like storage or VIPs,
from the complex resources like DB or MQ clusters.
The latter should run with no-quorum-policy=ignore as they know how to
deal with network partitions/split-brain, use own techniques to protect
data and don't want external fencing from a Pacemaker, which
no-quorum-policy/STONITH is.
The former must use STONITH (or a stop policy, if it's only a VIP), as
they don't know how to deal with split-brain, for example.
--
Best regards,
Bogdan Dobrelya,
Irc #bogdando
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