Re: Decreasing WAL size effects

On Wed, 2008-10-29 at 09:05 -0400, Greg Smith wrote:
> On Tue, 28 Oct 2008, Jason Long wrote:
>
> > I also have to ship them off site using a T1 so setting the time to
> > automatically switch files will just waste bandwidth if they are still going
> > to be 16 MB anyway.
>
> The best way to handle this is to clear the unused portion of the WAL file
> and then compress it before sending over the link.  There is a utility
> named pg_clearxlogtail available at
> http://www.2ndquadrant.com/replication.htm that handles the first part of
> that you may find useful here.
>
> This reminds me yet again that pg_clearxlogtail should probably get added
> to the next commitfest for inclusion into 8.4; it's really essential for a
> WAN-based PITR setup and it would be nice to include it with the
> distribution.

What is to be gained over just using rsync with -z?

Joshua D. Drake

>
> --
> * Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD
>
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