[Pacemaker] STONITH Deathmatch Explained

Tim Serong tim at wirejunkie.com
Thu May 14 08:32:00 UTC 2009


Greetings,

I've written up a brief document entitled "STONITH Deathmatch Explained
(and Some Hints for Resource Agent Authors and Systems Engineers)":

  http://ourobengr.com/ha

It's a description of causes of STONITH deathmatch in
Heartbeat/Pacemaker HA clusters, where two nodes continually shoot each
other, thus rendering the system less available than a non-HA system
would be.

Hopefully publishing this will save at least a few people from some of
the pain myself and a couple of others experienced last year, in
particular when trying to debug resource agents that were misbehaving in
unexpected ways.

Comments, feedback, etc. welcome.

Thanks,

Tim





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