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Re: [HACKERS] Minor changes to Recovery related code

From: Simon Riggs <simon(at)2ndquadrant(dot)com>
To: Bruce Momjian <bruce(at)momjian(dot)us>, pgsql-patches(at)postgresql(dot)org
Cc: "Florian G(dot) Pflug" <fgp(at)phlo(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Subject: Re: [HACKERS] Minor changes to Recovery related code
Date: 2008-04-01 16:17:34
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackerspgsql-patches
On Thu, 2008-03-27 at 17:34 +0000, Simon Riggs wrote:
> Follow-up during March 2008 CommitFest
> On Thu, 2007-06-07 at 21:53 +0100, Simon Riggs wrote:
> > On Sat, 2007-03-31 at 00:51 +0200, Florian G. Pflug wrote:

> > - pg_stop_backup() will wait until the WAL file that ends the backup is
> > safely archived, even if a failure to archive occurs. This is a change
> > to current behaviour, but since it implements the originally *expected*
> > behaviour IMHO it should be the default.
> The most straightforward thing is to make pg_stop_backup() wait as
> described above.
> If people want it to timeout, they can use a statement_timeout as
> suggested by Florian.
> This can be implemented by having the function poll in an infinite loop
> for archive_status/LOG.done. Also, as Florian suggests, we should have
> it output a WARNING message every 60 seconds.
> I'll write a patch now.

Patch to implement waiting pg_stop_backup(). 

Tested and ready to apply, includes docs.

  Simon Riggs

  PostgreSQL UK 2008 Conference:

Attachment: stop_backup_wait.v1.patch
Description: text/x-patch (7.6 KB)

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