Re: Installing multiple instances of Postgred on one FreeBSD server

I used to do the ezjail route before but for ease, you can modify the
setting "unix_socket_directory" on your postgresql.conf and have it point
to another folder (default is /tmp) to have more than 1 instance listen on
port 5432. Of course you need to add an alias IP for each instance and add
that IP on your postgresql.conf "listen_addresses".

--

regards

gezeala bacuño II

On Wed, May 1, 2013 at 1:24 PM, Jim Mercer <jim(at)reptiles(dot)org> wrote:

> On Wed, May 01, 2013 at 02:21:44PM -0600, Benjamin Krajmalnik wrote:
> > So essentially we would have to run jails on this - does that affect
> > performance?
>
> i would say minimal impact.
>
> >
> >
> > -----Original Message-----
> > From: Jim Mercer [mailto:jim(at)reptiles(dot)org]
> > Sent: Wednesday, May 01, 2013 2:20 PM
> > To: Benjamin Krajmalnik
> > Cc: pgsql-admin(at)postgresql(dot)org
> > Subject: Re: [ADMIN] Installing multiple instances of Postgred on one
> > FreeBSD server
> >
> > On Wed, May 01, 2013 at 01:58:21PM -0600, Benjamin Krajmalnik wrote:
> > > I would like to install PG 9.2 on the same server and use Slony to
> > > replicate the databases, and once everything is up take the 9.0
> > > cluster down.
> >
> > allocate a new ip to the server.
> > reconfigure/restart 9.0 to listen on the main IP (not "all" as default)
> >
> > use ezjail to create a freebsd jail on thenew IP
> >
> > install 9.2 in the jail
> >
> > treat it them as two servers.
> >
> > point clients at new ip.
> >
> > once migrated, delete all 9.0 from the main server.
> >
> > if you need to upgrade again, add another jail.
> >
> > stop and delete the old jail whe the next upgrade is complete.
> >
> > repeat as often as you want to upgrade.
> >
> > i'm pretty sure this can be adapted to linux, but i forget what their
> > jail equivilent is.
> >
> > the overhead is minimal
> >
> >
> >
> > --
> > Jim Mercer Reptilian Research jim(at)reptiles(dot)org +1 416
> > 410-5633
> > "He who dies with the most toys is nonetheless dead"
>
> --
> Jim Mercer Reptilian Research jim(at)reptiles(dot)org +1 416 410-5633
> "He who dies with the most toys is nonetheless dead"
>
>
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