Re: proposal: multiple read-write masters in a cluster with wal-streaming synchronization

From: Andres Freund <andres(at)2ndquadrant(dot)com>
To: Mark Dilger <markdilger(at)yahoo(dot)com>
Cc: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: proposal: multiple read-write masters in a cluster with wal-streaming synchronization
Date: 2014-01-02 19:44:22
Message-ID: 20140102194422.GA22022@awork2.anarazel.de
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On 2014-01-02 11:35:57 -0800, Mark Dilger wrote:
> BTW, since the space shuttle has already left orbit, as you
> metaphorically put it, maybe there should be more
> visibility to the wider world about this?  You can go to
> postgresql.org and find diddly squat about it.  I grant you
> that it is not a completed project yet, and so maybe you
> want to wait before making major announcements, but
> the sort of people who would use this feature are probably
> the sort of people who would not mind hearing about it
> early.

Well, changeset extraction isn't committed yet, so it's not surprising
that you don't find anything there ;). Parts of the patches (notably
wal_level=logical, enriching the WAL to allow decoding) have landed, the
others are being worked over in response to review comments of Robert.

I am pretty sure there will be more publicity once it's committed ;)

Greetings,

Andres Freund

--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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