| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Chander Ganesan <chander(at)otg-nc(dot)com> |
| Cc: | Jaume Sabater <jsabater(at)linuxsilo(dot)net>, pgsql-admin(at)postgresql(dot)org |
| Subject: | Re: Deleting old archived WAL files |
| Date: | 2008-10-30 21:26:28 |
| Message-ID: | 1225401988.3971.440.camel@ebony.2ndQuadrant |
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| Lists: | pgsql-admin |
On Thu, 2008-10-30 at 16:17 -0400, Chander Ganesan wrote:
> Why? If you haven't saved a backup that you made previously (using
> pg_start_backup()), having archived wal files is useless. I don't see
> why you just don't arbitrarily remove them immediately.
>
> WAL files are useful when you have a "starting point" (i.e., a backup
> made using the PITR backup method), and a set of WAL files generated
> "after" the starting point. If you don't preserve the start point
> (i.e., the PITR backup) then the WAL files are basically useless.
They are still better than nothing at all. I haven't read the whole
thread, but suggesting deleting things like that makes me go all
twitchy. :-). Do a couple of proper backups and then delete em.
--
Simon Riggs www.2ndQuadrant.com
PostgreSQL Training, Services and Support
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