From: | Andreas 'ads' Scherbaum <adsmail(at)wars-nicht(dot)de> |
---|---|
To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Streaming Rep - 2-phase backups and reducing time to full replication |
Date: | 2009-12-24 23:11:13 |
Message-ID: | 20091225001113.4084e511@iridium.wars-nicht.de |
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Lists: | pgsql-hackers |
On Thu, 24 Dec 2009 09:58:20 +0000 Simon Riggs wrote:
> On Tue, 2009-12-22 at 15:33 -0600, decibel wrote:
>
> > Dumb question: could the WAL streaming code be made to also ship base files? That would make setting up a streaming replica super-simple.
>
> That was a possible design, but that's not will be there for this
> release.
>
> I opposed adding the "we do the base backup for you" feature because
> there are many ways of doing a base backup and it would likely have
> restricted your options to do so. One issue that would cause is limiting
> the speed of the base backup to a single libpq connection, which would
> cause performance problems. So yes, super-simple, but not super-good for
> many big users.
The big users will always have other options. But for normal users who
just want to enable a replication - this feature would be awesome: the
entire replication is done by the database.
So +1 for integrating such a feature in a future version.
Bye
--
Andreas 'ads' Scherbaum
German PostgreSQL User Group
European PostgreSQL User Group - Board of Directors
Volunteer Regional Contact, Germany - PostgreSQL Project
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