Re: Is Synchronous Postgresql Replication Slower Than Asynchronous?

From: Stuart Bishop <stuart(at)stuartbishop(dot)net>
To: Jerry Richards <jerry(dot)richards(at)teotech(dot)com>
Cc: "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: Re: Is Synchronous Postgresql Replication Slower Than Asynchronous?
Date: 2012-01-23 14:30:35
Message-ID: CADmi=6MKGb-UqWypUC0=0JhT2qn-7=yakjPuTA8ifA31-RjWug@mail.gmail.com
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On Sat, Jan 21, 2012 at 3:31 AM, Jerry Richards
<jerry(dot)richards(at)teotech(dot)com> wrote:
> Is synchronous postgresql replication slower than asynchronous?  If so, how
> much?  I am looking into database replication for a phone system, so the
> response time is of concern.

You might want to investigate pgpool-ii. It sits as a proxy between
the client and the databases, and as queries are executed
simultaneously, a synchronous replication setup should be just as fast
as an unreplicated setup.

--
Stuart Bishop <stuart(at)stuartbishop(dot)net>
http://www.stuartbishop.net/

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