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From: Alvaro Herrera <[email protected]>
To: Halley Pacheco de Oliveira <[email protected]>
Cc: [email protected]
Cc: Roman Neuhauser <[email protected]>
Subject: Re: PostgreSQL 8.0.3 Documentation - Chapter 23. Monitoring Database Activity
Date: Wed, 27 Jul 2005 00:01:34 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>

On Tue, Jul 26, 2005 at 10:17:12PM -0300, Halley Pacheco de Oliveira wrote:
> The surprise is:
> 
> Oracle - MTS -  Multi-Threaded-Server - MTS allows many user processes
> to share very few server processes. Without MTS, each user process
> requires its own dedicated server process; a new server process is
> created for each client requesting a connection. A dedicated server
> process remains associated to the user process for the remainder of
> the connection. With MTS many user processes connect to a dispatcher
> process. The dispatcher routes client requests to the next available
> shared server process. The advantage of MTS is that system overhead is
> reduced, so the number of users that can be supported is increased.

Hmm, seems a very similar thing can be had in Postgres by means of
pgpool.

It'd be interesting to see how are cursors handled, or any other
long-lived session-local resources for that matter, by this dispatcher
process of Oracle's.

-- 
Alvaro Herrera (<alvherre[a]alvh.no-ip.org>)
"Crear es tan difícil como ser libre" (Elsa Triolet)

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