| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Bruce Momjian <bruce(at)momjian(dot)us> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)commandprompt(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Allow wal_keep_segments to keep all segments |
| Date: | 2010-06-02 19:36:53 |
| Message-ID: | 1275507413.21465.2825.camel@ebony |
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| Lists: | pgsql-hackers |
On Wed, 2010-06-02 at 15:20 -0400, Bruce Momjian wrote:
> The attached patch allows wal_keep_segments = -1 to keep all segements;
> this is particularly useful for taking a base backup, where you need all
> the WAL files during startup of the standby. I have documented this
> usage in the patch as well.
>
> I am thinking of applying this after 9.0 beta2 if there is no objection.
It's not clear to me why "keep all files until server breaks" is a good
setting. Surely you would set this parameter to the size of your disk.
Why allow it to go higher?
--
Simon Riggs www.2ndQuadrant.com
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