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Re: Fully-automatic streaming replication failover when master dies?

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On 1/22/2014 1:35 PM, Dmitry Koterov wrote:

So does something similar and more-or-less stable exist for PostgrSQL too?


you'd need to implement that yourself using a cluster management package, and something like repmgr to handle the transitions.

database failover is extremely tricky stuff. you have to make very very sure you don't get into a stoned cluster where both nodes THINK they are master. most well implemented failover clusters make use of hardware 'fencing' to block the presumed-dead former master from coming back online without manual intervention.

--
john r pierce                                      37N 122W
somewhere on the middle of the left coast



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