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From: Kevin Grittner <Kevin.Grittner@wicourts.gov>
To: Dragos Valentin Moinescu <dragos.moinescu@gmail.com>
To: pgsql-admin@postgresql.org
Subject: Re: issue with 9.0 1 slave becomes master with new timeline
Date: Thu, 11 Nov 2010 09:08:35 -0600
Message-ID: <4CDBB293020000250003757C@gw.wicourts.gov> (raw)
In-Reply-To: <AANLkTi=ajKCSuUU8wh7OnGPg9tx96gU-pBXM2wfdF5mu@mail.gmail.com>
References: <AANLkTi=ajKCSuUU8wh7OnGPg9tx96gU-pBXM2wfdF5mu@mail.gmail.com>

Dragos Valentin Moinescu <dragos.moinescu@gmail.com> wrote:
 
> How can I easile migrate the 2 slaves on the new master without
> creating a new base backup (which unfortunately takes too long as
> the databases contain arround 200GB)?
 
Have you tested rsync using a daemon from the new master (after
pg_start_backup) to the copy the slave already has?  It should send
the delta pretty quickly -- perhaps quickly enough to meet your
needs.  It's worth testing, anyway.
 
I believe this is an area people are trying to improve for 9.1.
 
-Kevin



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