Re: pg_archivecleanup with multiple slaves

From: Tim Lewis <Tim(dot)Lewis(at)vialect(dot)com>
To: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Cc: Ben Lancaster <benlancaster(at)holler(dot)co(dot)uk>, pgsql-admin(at)postgresql(dot)org
Subject: Re: pg_archivecleanup with multiple slaves
Date: 2011-05-20 15:58:05
Message-ID: BANLkTin_7X-dfopa2qOzeFddEw4Pnm5OTA@mail.gmail.com
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I don't actually use streaming replication, but what exactly is the problem
with the hard link for each slave solution, and the slaves handling there
own pg_archivecleanup?

On Fri, May 20, 2011 at 11:30 AM, Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:

> On Fri, May 20, 2011 at 7:59 PM, Ben Lancaster
> <benlancaster(at)holler(dot)co(dot)uk> wrote:
> > The problem I have is that pg_archivecleanup (running on one of the
> slaves) was removing WAL logs before the other slave had picked up the
> changes, thus breaking replication for the second slave. As an interim fix,
> I simply disabled the automatic cleanup and figured I'd worry about it
> later.
>
> I'm afraid there is no clean solution. In order to address this
> problem, we probably
> should change the master for 9.2 so that it collects the information
> about the cutoff
> point from each standby and calls pg_archivecleanup.
>
> Regards,
>
> --
> Fujii Masao
> NIPPON TELEGRAPH AND TELEPHONE CORPORATION
> NTT Open Source Software Center
>
> --
> Sent via pgsql-admin mailing list (pgsql-admin(at)postgresql(dot)org)
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