Re: Re: [COMMITTERS] pgsql: Make standby server continuously retry restoring the next WAL

Fujii Masao <masao.fujii@gmail.com>

From: Fujii Masao <masao.fujii@gmail.com>
To: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Cc: Simon Riggs <simon@2ndquadrant.com>, Dimitri Fontaine <dfontaine@hi-media.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2010-02-12T15:47:42Z
Lists: pgsql-hackers
On Fri, Feb 12, 2010 at 10:10 PM, Heikki Linnakangas
<heikki.linnakangas@enterprisedb.com> wrote:
>> So I suggest that you have a new action that gets called after every
>> checkpoint to clear down the archive. It will remove all files from the
>> archive prior to %r. We can implement that as a sequence of unlink()s
>> from within the server, or we can just call a script to do it. I prefer
>> the latter approach. However we do it, we need something initiated by
>> the server to maintain the archive and stop it from overflowing.
>
> +1

If we leave executing the remove_command to the bgwriter, the restartpoint
might not happen unfortunately for a long time. To prevent that situation, the
archiver should execute the command, I think. Thought?

Regards,

-- 
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center