Обсуждение: postgres-two different version

Am 30.01.2007, 12:46 Uhr, schrieb Bottini <g.bottini@arpa.vda.it>:

> Hi all
>
> Probably is a stupid question,
>
>
> But I ‘m a newbie and I don’t want to destroy my server :-)
>
>
> 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
>
>
> If the answer is affirmative,I think that I have to change 2 things :the
> installation directory and the port.
>
> 1) I install postgres with the rpm command .I think that I have to use
> the
> option –relocate.But how?
>
> 2) In what’s file I can change the port?
>
>
> Thanks a lot.
>
>
> Gian Piero Bottini
>
> __________________________
> dott. Gian Piero Bottini
>
> ARPA Valle d'Aosta
> Loc. Grande Charrière 44
> 11020 Saint Christophe - Aosta
> Tel. 0165-278552
>
> contatto skype gianpiero.bottini
> _______________________________
>
>
>
I think it should be possible to run 2 pg-servers on the same machine.
They must use different datastores and listen to different ports. You can
change the port in the postgresql.conf-file in the datastore.

bye
Uwe Seher
_____________________________________
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nebeniusstr. 34
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"Bottini" <g.bottini@arpa.vda.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

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@sss.pgh.pa.us> wrote in message
news:1892.1170169384@sss.pgh.pa.us...
> "Bottini" <g.bottini@arpa.vda.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
>

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
reasonable.

Naomi

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@sss.pgh.pa.us> wrote in message 
news:1892.1170169384@sss.pgh.pa.us... 

"Bottini" <g.bottini@arpa.vda.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

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