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Re: log_checkpoints and restartpoint

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: log_checkpoints and restartpoint
Date: 2011-01-30 20:17:13
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On Tue, Jan 25, 2011 at 11:14 PM, Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:
> When log_checkpoints is enabled, checkpoint logs the number of
> WAL files created/deleted/recycled, but restartpoint doesn't.
> This is OK before 9.0 because restartpoint had never created/
> deleted/recycled WAL files. But, in 9.0 or later, restartpoint might
> do that while walreceiver is running. So I think that it's useful to
> log those numbers even in restartpoint in the now.
> The attached patch changes LogCheckpointEnd so that it logs
> the number of WAL files created/deleted/recycled even in
> restartpoint.
> And I found the problem about the initialization of CheckpointStats
> struct. The attached patch also fixes this.

This patch looks good to me.  For now, I'm marking it Ready for
Committer.  Absent objections, I will also commit it.

Robert Haas
The Enterprise PostgreSQL Company

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