Re: Backup history file should be replicated in Streaming Replication?

From: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
To: Simon Riggs <simon(at)2ndquadrant(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Backup history file should be replicated in Streaming Replication?
Date: 2009-12-22 19:15:11
Message-ID: 3f0b79eb0912221115q4b093dadjebe3a492106beabc@mail.gmail.com
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On Wed, Dec 23, 2009 at 4:09 AM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> It's needed to find the place where the backup stopped, so it defines
> the safe stopping point. We could easily pass that info via WAL, when
> streaming. It doesn't actually matter until we try to failover.

Right. And, it's also needed to cooperate with HS which begins accepting
read-only queries after a recovery reaches that safe stopping point.

Regards,

--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center

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