From: | Scott Mead <scott(dot)lists(at)enterprisedb(dot)com> |
---|---|
To: | John Lister <john(dot)lister-ps(at)kickstone(dot)com> |
Cc: | pgsql-admin(at)postgresql(dot)org |
Subject: | Re: Stopping during recovery |
Date: | 2010-03-23 11:52:53 |
Message-ID: | d3ab2ec81003230452j23c7942awd0278d57b86d1ed7@mail.gmail.com |
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Lists: | pgsql-admin |
On Tue, Mar 23, 2010 at 7:18 AM, John Lister
<john(dot)lister-ps(at)kickstone(dot)com>wrote:
> Hi, I've successfully set up a slave system using WAL archiving and
> pg_standby, but I have a couple of questions.
>
> I have a couple of questions:
>
> Is it possible to stop the database server (for maintenance for example)
> and resume the recovery without starting afresh and making a complete backup
> of the original again?
>
Yes, it won't begin reading at the very first logfile, it will start based
on your last checkpoint:
http://www.scottrmead.com/blogs/scott/warm-standby-monitoring
http://www.kennygorman.com/wordpress/?p=249
> Secondly is it possible to start the database in "readonly" (using set
> default_transaction_read_only) and make a query before resuming the
> recovery?
>
No, this feature is only available in 9.0 (which is in alpha) and beyond.
--Scott M
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