Re: PostgreSQL, clusters and load-balance

From: Thomas Kellerer <spam_eater(at)gmx(dot)net>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: PostgreSQL, clusters and load-balance
Date: 2008-03-25 18:24:28
Message-ID: fsbg0r$79h$1@ger.gmane.org
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Bill Wordsworth wrote on 25.03.2008 19:16:
> When traffic goes up, my webserver creates multiple instances of
> postgresql.exe. At some basic level, aren't they similar to Oracle's RAC
> "clusters", except that they are not aware of each other?

No, absolutely not. Each client request is handled by a single postgres process
which is spawned by the postmaster upon connection.

It has nothing to do with "instances" or high-availibility

Thomas

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