Re: pg_xlog volume question

On Fri, 2009-02-06 at 12:52 -0500, Mark Steben wrote:
> Hello listers,
>
> I'm designing a PITR backup / recovery scenario where I'm log-shipping to
> another location and recovering using a tar backup and log roll forward.
> The plan is to save a week's worth of logs and restore nightly using the
> accumulated logs to that point.  A daily full backup is too
> expensive and time consuming - it takes over 36 hours to transport it over
> the network to the recovery site.  So we're going with the weekly backup and
> saving the weeks worth of logs.
>
> As you well know, I will require a LOT of storage for the xlogs.  I'm
> currently creating about 2GB of logs every hour.  Is there a config
> parameter to reduce the amount that Xlog takes up?

No. I would suggest using pg_standby or pitrtools (which requires
pg_standby) to manage this. I would also suggest just restoring as the
logs become available. If you can't process 2G in an hour over the
network do it at night.

Joshua D. Drake


>
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