Re: Issues with Quorum Commit

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От Tom Lane
Тема Re: Issues with Quorum Commit
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Msg-id 22421.1286548695@sss.pgh.pa.us
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Ответ на Re: Issues with Quorum Commit  (Markus Wanner <markus@bluegap.ch>)
Ответы Re: Issues with Quorum Commit  (Markus Wanner <markus@bluegap.ch>)
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Markus Wanner <markus@bluegap.ch> writes:
> On 10/08/2010 04:11 PM, Tom Lane wrote:
>> Actually, #2 seems rather difficult even if you want it.  Presumably
>> you'd like to keep that state in reliable storage, so it survives master
>> crashes.  But how you gonna commit a change to that state, if you just
>> lost every standby (suppose master's ethernet cable got unplugged)?

> IIUC you seem to assume that the master node keeps its master role. But
> users who value availability a lot certainly want automatic fail-over,

Huh?  Surely loss of the slaves shouldn't force a failover.  Maybe the
slaves really are all dead.
        regards, tom lane


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