Re: Expose checkpoint start/finish times into SQL.

From: Robert Treat <xzilla(at)users(dot)sourceforge(dot)net>
To: pgsql-patches(at)postgresql(dot)org
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Greg Smith <gsmith(at)gregsmith(dot)com>
Subject: Re: Expose checkpoint start/finish times into SQL.
Date: 2008-04-04 15:28:07
Message-ID: 200804041128.07528.xzilla@users.sourceforge.net
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On Friday 04 April 2008 03:14, Tom Lane wrote:
> Greg Smith <gsmith(at)gregsmith(dot)com> writes:
> > ... If they'd have noticed it while the server was up, perhaps because
> > the "last checkpoint" value hadn't changed in a long time (which seems
> > like it might be available via stats even if, as you say, the background
> > writer is out of its mind at that point), they could have done such a
> > kill and collected some actual useful information here. That's the
> > theory at least.
>
> Well, mebbe, but that still seems to require a lot of custom monitoring
> infrastructure that is not present in this patch, and furthermore that
> this patch doesn't especially aid the development of.
>

This patch makes that a 1 line sql call, which can be plugged into any number
of monitoring systems.

--
Robert Treat
Build A Brighter LAMP :: Linux Apache {middleware} PostgreSQL

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