Re: Allow wal_keep_segments to keep all segments

Heikki Linnakangas wrote:
> On 03/06/10 15:15, Bruce Momjian wrote:
> > Simon Riggs wrote:
> >> I think its much easier to find out your free disk space than it is to
> >> calculate how much WAL might be generated during backup. Disk space
> >> doesn't vary significantly on a production database.
> >>
> >> If we encourage that laziness then we will get reports that replication
> >> doesn't work and Postgres crashes.
> >
> > Well, we don't clean out the archive directory so I don't see this as
> > anything new.
>
> We leave that up to the DBA to clean out one way or another. We provide
> restartpoint_command and the %r option in restore_command to help with that.
>
> Surely we don't expect DBAs to delete old files in pg_xlog? I agree with
> Simon here, I think it would be better to not provide -1 as an option
> here. At least you better document well that you should only do that
> temporarily or you will eventually run out of disk space.

Using this only temporarily is mentioned in the doc patch. Do I need
more?

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ None of us is going to be here forever. +