From: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Alvaro Herrera <alvherre(at)commandprompt(dot)com>, pgsql-patches(at)postgreSQL(dot)org |
Subject: | Re: Revised patch for fixing archiver shutdown behavior |
Date: | 2008-01-10 15:53:04 |
Message-ID: | 1199980384.4266.770.camel@ebony.site |
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Lists: | pgsql-patches |
On Thu, 2008-01-10 at 10:13 -0500, Tom Lane wrote:
> Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> > Something I'm still wondering is about the archiver/logger combination.
> > What happens if a postmaster is stopped by the user and the archiver is
> > still running, and the user starts a new postmaster? This would launch
> > a new archiver and logger; and there are now two loggers possibly
> > writing to the same files, and truncated log lines could occur.
>
> I'm not nearly as worried about that as I am about the prospect of
> two concurrent archivers :-(
How strange, I was just looking at that particular possibility when your
mail arrived.
The earlier patch looks good, but I see you've reverted the
PostmasterIsAlive() check in pgarch_ArchiverCopyLoop(). That was put in
to prevent multiple archivers. Can we keep that?
--
Simon Riggs
2ndQuadrant http://www.2ndQuadrant.com
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