Re: POSIX shared memory support

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Chris Marcellino <cmarcellino(at)apple(dot)com>
Cc: pgsql-patches(at)postgresql(dot)org
Subject: Re: POSIX shared memory support
Date: 2007-03-03 17:09:47
Message-ID: 45E9ABDB.908@commandprompt.com
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> If you have the need to ship a product with Postgres embedded in it and
> are unable to change kernel settings (like myself), this might be of use
> to you. I have tested all of the failure situations I could think of by
> various combinations of deleting lockfiles while in use, changing the
> PID inside the lockfile and trying to restart and run more than one
> postmaster simultaneously.
>
> Of course, this since this requires both POSIX and SysV shared memory,
> this doesn't increase the portability of Postgres which might make it
> less appropriate for mass distribution; I thought I would put it out
> there for any feedback either way.

Well that depends, what systems don't use (or have) POSIX shared memory?
This sounds very interesting to me. Oddly enough I went to do some
digging on what various differences and I came up with:

http://www.nabble.com/POSIX-shared-memory-support-t3298386.html

Which happens to be you ;)

Sincerely,

Joshua D. Drake

>
> Thanks again,
> Chris Marcellino
>
>
>
>
> ------------------------------------------------------------------------
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 2: Don't 'kill -9' the postmaster

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