Re: Another Data directory for second database -

Thanks for the feedback. I have tried this way and seems to be working
just fine. For this approach, I have a postmaster for each databases,
correct?

The approach that another gentleman pointed out is the use of
alternative location where it actually uses one postmaster and creates a
symbolic link in the default base directory (using initlocation).

Both are great options and I think for my specific situation, I'd go
with your way, since it'll allow me more flexibility on maintaining the
different databases. I can shutdown one postmaster for maintenance for
instance, without affecting the other database.


--
 Husam


-----Original Message-----
From: pgsql-admin-owner@postgresql.org
[mailto:pgsql-admin-owner@postgresql.org] On Behalf Of Chris Browne
Sent: Friday, April 22, 2005 11:44 AM
To: pgsql-admin@postgresql.org
Subject: Re: [ADMIN] Another Data directory for second database -
feasible?

htomeh@firstam.com ("Tomeh, Husam") writes:
> I have a postgres installation with one database on a server. I'd need

> to create another database; however, I'm curious if there's a way to
> create the second database in a different directory than the existing
> one. Is that feasible and how? Or does postgres only point to one data

> directory?  Thanks in advance.

We have plenty of servers with multiple databases, handled in just this
fashion.

At the simplest level, it involves running initdb three times, on three
directories:

$ initdb -D /opt/DB1
$ initdb -D /opt/DB2
$ initdb -D /opt/DB3
$ vi /opt/DB?/postgresql.conf
[change port numbers for each]
$ for db in 1 2 3; do
  pg_ctl -D /opt/DB$db start
done

You probably want to set up some set of "init" scripts that manage
telling the instances where to stow log files and such, and which can be
auto-started upon system bootup.

One of my coworkers has built a really nice init script that's good at
building the directory structure where the DBs will be stowed, hence...

$ vi init_db3.sh
[modify config]
$ ./init_db3.sh mkdir
[builds directory structure]
$ ./init_db3.sh initdb
[runs initdb for you]
$ ./init_db3.sh start

At one point, he was trying to come up with a way of releasing it to the
community; hopefully poking Drew can lead to that coming available,
someday...
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