From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Alvaro Herrera <alvherre(at)surnet(dot)cl>, josh(at)agliodbs(dot)com, PostgreSQL-patches <pgsql-patches(at)postgresql(dot)org> |
Subject: | Re: [HACKERS] Fix PID file location? |
Date: | 2005-05-28 02:21:19 |
Message-ID: | 200505280221.j4S2LJT06305@candle.pha.pa.us |
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Lists: | pgsql-hackers pgsql-patches |
Tom Lane wrote:
> Alvaro Herrera <alvherre(at)surnet(dot)cl> writes:
> > On Fri, May 27, 2005 at 07:40:17PM -0400, Tom Lane wrote:
> >> I really think we have only two choices: teach pg_ctl how to dig the
> >> data directory location out of postgresql.conf,
>
> > I don't think this is extremely hard, isn't it?
>
> One small problem is that I think the current definition allows the data
> directory to be specified relative to the original postmaster working
> directory. Of course, that's not different from "-D ." on the
> postmaster command line, so possibly the answer is "if you want to use
> pg_ctl, don't do that".
I don't see any way to accurately find the data directory location.
Reading postgresql.conf is one way, but what if they set data_directory
on the command line using postmaster -o? Is reading postgresql.conf
from pg_ctl without a parser really accurate? Shame we can't attach and
do "SHOW data_directory" on a backend.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
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