On 2013-06-13T07:45:09, Andrew Beekhof <and...@beekhof.net> wrote:
> Its certainly possible to build a decent 2-node cluster, but there are
> several non-obvious steps that are required - preventing fencing loops being
> one.
Given that 2-node clusters are probably still the 90%+ majority, I
wonder if we shouldn't make them easier somehow.
One of the caveats is that no-quorum-policy defaults to a value that
doesn't make sense for <=2 nodes; maybe we should change that again?
And maybe we can add generic code to pacemaker/corosync to avoid fence
loops: don't start automatically after an unclean restart, generic delay
of the not-yet-DC node if a 2-node cluster splits, etc.
What other caveats are there?
Regards,
Lars
--
Architect Storage/HA
SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB
21284 (AG Nürnberg)
"Experience is the name everyone gives to their mistakes." -- Oscar Wilde
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