Re: Installing multiple instances of Postgred on one FreeBSD server - Mailing list pgsql-admin

On Wed, May 01, 2013 at 03:40:31PM -0600, Benjamin Krajmalnik wrote:
> The problem, as I see it without using jails, is that the binaries are going to be installed in the same location as
the9.0 - unless I am not seeing something properly. 

you can probably set destdir or something in ports to point at /usr/local2 or something, but you will need to be
carefulthat the configs done conflict for listen ip, port and sockets. 

the jail solution is quite clean, and allows for a straight up ports install/config.

sorry for the lack of formatting, using tiny keyboard.

--jim

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> From: Gezeala M. Bacu?o II [mailto:gezeala@gmail.com]
> Sent: Wednesday, May 01, 2013 3:38 PM
> To: Jim Mercer
> Cc: Benjamin Krajmalnik; pgsql-admin@postgresql.org
> Subject: Re: [ADMIN] Installing multiple instances of Postgred on one FreeBSD server
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> I used to do the ezjail route before but for ease, you can modify the setting "unix_socket_directory" on your
postgresql.confand have it point to another folder (default is /tmp) to have more than 1 instance listen on port 5432.
Ofcourse you need to add an alias IP for each instance and add that IP on your postgresql.conf "listen_addresses". 
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> --
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> regards
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> gezeala bacu?o II
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> On Wed, May 1, 2013 at 1:24 PM, Jim Mercer <jim@reptiles.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.
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> >
> >
> > -----Original Message-----
> > From: Jim Mercer [mailto:jim@reptiles.org]
> > Sent: Wednesday, May 01, 2013 2:20 PM
> > To: Benjamin Krajmalnik
> > Cc: pgsql-admin@postgresql.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@reptiles.org    +1 416
> > 410-5633
> > "He who dies with the most toys is nonetheless dead"
>
> --
> Jim Mercer     Reptilian Research      jim@reptiles.org    +1 416 410-5633 <tel:%2B1%20416%20410-5633>
> "He who dies with the most toys is nonetheless dead"
>
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--
Jim Mercer     Reptilian Research      jim@reptiles.org    +1 416 410-5633
"He who dies with the most toys is nonetheless dead"