Red Hat ALREADY creates a file "postmaster.pid" in the /var/lock directory.
I don't know how far the /var/lock convention goes across different platforms,
but I recommend using IT or its equivalent, I still have scars from my OS/2
days where every product put its goodies in a different place and you had to
guess where, how, and in what format.
Regards, Tim Holloway
Tatsuo Ishii wrote:
>
> From: Tom Lane <tgl@sss.pgh.pa.us>
> > Tatsuo Ishii <t-ishii@sra.co.jp> writes:
> > > It would be nice if postmaster has its own pid file to send signals to
> > > it. I think the pid file could be placed under $PGDATA. Opinions?
> >
> > Yes, that's been discussed before, and I think it's even got an entry
> > on the TODO list. If you've got time to tackle it now, great!
> >
> > $PGDATA seems like the right place to put the file, since we can only
> > have one active postmaster at a time in a database directory.
>
> Right.
>
> > I assume you'll also create a script that sends SIGTERM or other
> > requested signal to the postmaster, using this file?
>
> Of course:-) I'm thinking about to make an apachectl-like script.
> --
> Tatsuo Ishii
>
> ************