Re: Review: Extra Daemons / bgworker

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Markus Wanner <markus(at)bluegap(dot)ch>
Cc: Dimitri Fontaine <dimitri(at)2ndQuadrant(dot)fr>, kaigai(at)kaigai(dot)gr(dot)jp, PostgreSQL-development Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Review: Extra Daemons / bgworker
Date: 2012-11-30 13:44:43
Message-ID: 20121130134443.GD4542@alvh.no-ip.org
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Markus Wanner wrote:
> On 11/30/2012 01:40 PM, Dimitri Fontaine wrote:
> > I totally missed the need to connect to shared memory to be able to
> > connect to a database and query it. Can't we just link the bgworkder
> > code to the client libpq library, just as plproxy is doing I believe?
>
> Well, sure you can use libpq. But so can external processes. So that's
> no benefit of running under the postmaster.

No, it's not a benefit of that; but such a process would get started up
when postmaster is started, and shut down when postmaster stops. So it
makes easier to have processes that need to run alongside postmaster.

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

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