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Re: Planning hot/live backups?

From: "Matthew T(dot) O'Connor" <matthew(at)zeut(dot)net>
To: Miguel Arroz <arroz(at)guiamac(dot)com>
Cc: Steve Poe <steve(dot)poe(at)gmail(dot)com>, "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Planning hot/live backups?
Date: 2008-03-25 04:50:41
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-performance
Miguel Arroz wrote:
> Going a bit off topic, but one quick question: to avoid storing GB of 
> WAL files that will probably take a lot of time to reload, how can the 
> backup be "reset"? I suspect that it's something like stopping the WAL 
> archiving, doing a new base backup, and restart archiving, but I've 
> never done it (have been using SQL dumps), so... 

Basically, you only need WAL logs from the last time you made a back-up 
of your data directory.  We do  nightly re-rsync of our data directory 
and then purge old WAL files that are no longer needed.

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