| From: | Simon Riggs <simon(at)2ndQuadrant(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: | 2012-03-01 08:35:01 |
| Message-ID: | CA+U5nMKcy_wkzJdpwsjyaa76ucyw0FkDhdXnMCypbAwPF0JSEQ@mail.gmail.com |
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| Lists: | pgsql-admin |
On Tue, Feb 28, 2012 at 10:53 PM, Brian Fehrle
<brianf(at)consistentstate(dot)com> wrote:
> 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.
We don't do a restartpoint on the standby unless we see a checkpoint
record, so that result should be impossible.
So I'm guessing you're reading the stats wrong?
--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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