Re: Regarding the shared disk fail over cluster configuration - Mailing list pgsql-general

From Alan Hodgson
Subject Re: Regarding the shared disk fail over cluster configuration
Date
Msg-id 201111021018.19913.ahodgson@simkin.ca
Whole thread Raw
In response to Re: Regarding the shared disk fail over cluster configuration  (Debasis Mishra <debasis1982@gmail.com>)
List pgsql-general
On November 2, 2011 08:55:39 AM Debasis Mishra wrote:
> My doubt is - Whether cluster should start the postgres service in
> secondary node during failover or postgress will be running always. My
> undersatnding was in both the node postgress will be running and pointing
> to shared dbdata. And if node1/primary fails then cluster software should
> bring node2/secondary up.once it will bring node2 online there postgress
> must be running already.

You definitely cannot have 2 postmasters running against the same shared disk.
The cluster software will need to start PostgreSQL on the secondary node after
taking over the IP address and shared disk resource.

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