Re: warm standby - apply wal archives

From: Andreas Kretschmer <akretschmer(at)spamfence(dot)net>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: warm standby - apply wal archives
Date: 2011-09-05 16:53:38
Message-ID: 20110905165338.GA24944@tux
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MirrorX <mirrorx(at)gmail(dot)com> wrote:

> my bad...
> i read in the manual that the recovery process is constant and runs all the
> time. so the question now is
> how many wals can this procedure handle? for example can it handle 100-200G

sure, if the master can handle that it's no problem for the client (same
hardware). In my experience it's only a fraction of work for the client
(streaming replication with 9.0)

> every day? if it cannot, any other suggestions for HA ?thx in advance

Depends on your requirements, for instance heartbeat and DRBD is an
other solution.

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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