On Thu, Oct 26, 2006 at 09:35:56PM +0100, Gavin Hamill wrote:
>
> I'm absolutely certain. The backups run from only one slave, given that
> it is a full copy of node 1. Our overnight traffic has not increased
> any, and the nightly backups show that the overall size of the DB has
> not increased more than usual growth.
A couple things from your posts:
1. Don't do VACUUM FULL, please. It takes longer, and blocks
other things while it's going on, which might mean you're having
table bloat in various slony-related tables.
2. Are your slony logs showing increased time too? Are your
targets getting further behind?
3. Your backups "from the slave" aren't done with pg_dump,
right?
But I suspect Slony has a role here, too. I'd look carefully at the
slony tables -- especially the sl_log and pg_listen things, which
both are implicated.
A
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