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Re: question about replication slots

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Michael Paquier <michael.paquier@xxxxxxxxx> wrote:

> On Sat, Dec 5, 2015 at 2:35 AM, Andreas Kretschmer
> <andreas@xxxxxxxxxxxxxxx> wrote:
> > imagine a streaming replication using physical replication slots. And sometime a
> > fail over. All okay. I take a basebackup and rebuild the old master as slave.
> >
> > Is there a risk that the new slave contains active replication slots but no
> > listener on it?
> 
> Yes. This would retain WAL on the standby indefinitely if you are not careful.
> 
> > What have i to consider?
> 
> You had better remove the contents of pg_replslot/ in the backup
> taken. Even if you include them, there are high chances that those
> will be useless at the end.
> 
> So, quoting the docs
> (http://www.postgresql.org/docs/devel/static/continuous-archiving.html):

Thx for the answer!


Andreas
-- 
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect.                              (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly."   (unknown)
Kaufbach, Saxony, Germany, Europe.              N 51.05082°, E 13.56889°


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