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Re: Hot standby having high requested checkpoints?

From: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
To: Brian Fehrle <brianf(at)consistentstate(dot)com>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: Hot standby having high requested checkpoints?
Date: 2012-02-29 04:22:33
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-admin
On Wed, Feb 29, 2012 at 7:53 AM, Brian Fehrle
<brianf(at)consistentstate(dot)com> wrote:
> Hi all,
> I have two PostgreSQL 9.0.5 clusters, one is a master and the other is a hot
> standby via streaming replication. I'm monitoring some stats on each and I'm
> noticing something very odd. On the master, I get between 2 and 4 requested
> checkpoints per hour, but on the hot standby I'm seeing between 200 and 300
> requested checkpoints per hour.

How did you get that information? Enable log_checkpoints?


Fujii Masao
NTT Open Source Software Center

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Subject: Re: Failover of a Hot standby setup with multiple standbys
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