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Re: postgres-two different version

From: Naomi Walker <nwalke(at)eldocomp(dot)com>
To: codeWarrior <gpatnude(at)hotmail(dot)com>
Cc: "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org>
Subject: Re: postgres-two different version
Date: 2007-01-30 19:52:18
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-admin
We run two servers when we are trying out new versions (development, qa,
and production).  And,
its a failsafe for upgrades.  Since you need to unload for major
upgrades anyway, it is completely


codeWarrior wrote:
> Why would you want two servers on the same box ??? There's this thing called 
> "schemas" within one database... and postgreSQL is very capable of managing 
> multiple databases from the same server....
> If you insist on trying to run two postgreSQL server on teh same box -- You 
> also need to make sure that your two different versions dopnt share TCP/IP 
> ports -- they cannot both listen on the same IP:PORT address -- so you will 
> need to manage your postgresql.conf and pg_hba.conf files separately -- one 
> for each postgresql server... ditto for your startup scripts.
> You will probably also have some issues when using pgsql at the command line 
> [localhost].
> Why not just upgrade your 8.1.3 installation to 8.2 ?
> "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote in message 
> news:1892(dot)1170169384(at)sss(dot)pgh(dot)pa(dot)us(dot)(dot)(dot)
>> "Bottini" <g(dot)bottini(at)arpa(dot)vda(dot)it> writes:
>>> Is possible  to install two different version of postgresql on the same
>>> Linux server? I want to install  the 8.2 version in a server where is
>>> installed 8.1.3 version
>> You can, but not when installing from RPM: the RPMs have a fixed idea of
>> where to put the software, and I don't think it's feasible to change.
>> You'd need to build from source and use the --prefix configure option
>> to put the two sets of code in different places.
>> regards, tom lane
>> ---------------------------(end of broadcast)---------------------------
>> TIP 6: explain analyze is your friend
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> TIP 5: don't forget to increase your free space map settings

Naomi Walker                          Chief Information Officer 
Mphasis Healthcare Solutions          nwalker(at)mhs(dot)mphasis(dot)com 
  ---An EDS Company                   602-604-3100 
A positive attitude may not solve all your problems, but it will annoy 
enough people to make it worth the effort. --Herm Albright (1876 - 1944)


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