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Re: Clean shutdown and warm standby

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc: Guillaume Smet <guillaume(dot)smet(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andreas Pflug <pgadmin(at)pse-consulting(dot)de>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Clean shutdown and warm standby
Date: 2009-05-28 13:06:15
Message-ID: 1243515975.24860.531.camel@ebony.2ndQuadrant (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On Thu, 2009-05-28 at 14:04 +0300, Heikki Linnakangas wrote:

> I've committed a patch to do the RequstXLogSwitch() before shutdown 
> checkpoint as discussed. It seems safe to me. (sorry for the delay, and 
> thanks for the reminder)

Not sure if that is a fix that will work in all cases. 

There is a potential timing problem with when the archiver is shutdown:
that may now be fixed in 8.4, see what you think.

Also if archiving is currently stalled, then files will not be
transferred, even if you switch xlogs. So this is at best a partial fix
to the problem and the need for a manual check of file contents

 Simon Riggs 
 PostgreSQL Training, Services and Support

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