[ClusterLabs] SBD & Failed Peer

Jorge Fábregas jorge.fabregas at gmail.com
Sun Sep 6 16:23:20 EDT 2015


I was reading one of the latest posts [1] from Andrew Beekhof on SBD and
got me into thinking...

Assume an active/active cluster using OCFS2 and SBD with shared storage.
Then one node explodes (the hardware watchdog is gone as well
obviously).  At this point my guess is that the remaining node will
notice that its partner hasn't updated its mailbox slot on the SBD

My question:  Is this enough proof (confirmation) that the other node
isn't capable of causing corruption? And so...will DLM/OCFS2 resume


[1]: http://blog.clusterlabs.org/blog/2015/sbd-fun-and-profit/

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