Re: Two started cluster on the same data directory and port

On 11/30/23 08:46, Loles wrote:
> Yes, it exists but it is obsolete. The files and directories are all
> dated 2022.
>
> It was obsolete and no longer valid, it could be deleted. Only the main
> cluster is correct.

First try:

     vi /etc/postgresql/14/main_old/start.conf

and change auto to disabled.

Stop the server(s) and then:

     sudo pg_ctlcluster starp 14 main

>
> El jue, 30 nov 2023 a las 17:43, Adrian Klaver
> (<adrian.klaver@aklaver.com <mailto:adrian.klaver@aklaver.com>>) escribió:
>
>     On 11/30/23 08:37, Loles wrote:
>      > Every time I stop the main_old cluster with sudo pg_ctlcluster
>     stop 14
>      > main_old, both are stopped. And when I raise sudo pg_ctlcluster
>     start 14
>      > main, both are raised.
>      >
>      > I don't know how I got into this situation and I don't know how to
>      > resolve it.
>
>     Is there both?:
>
>          /etc/postgresql/14/main/
>          /etc/postgresql/14/main_old/
>
>      >
>      >
>      > El jue, 30 nov 2023 a las 17:34, Loles (<lolesft@gmail.com
>     <mailto:lolesft@gmail.com>
>      > <mailto:lolesft@gmail.com <mailto:lolesft@gmail.com>>>) escribió:
>      >
>      >     Indeed, that is the problem, they are two different clusters,
>      >     pointing to the same data directory and reading from the same
>     port.
>      >
>      >     I can't change the port because it is the same postgresql.conf
>      >
>      >     I don't know how to disassociate the main_old cluster from
>     the data
>      >     directory or how to resolve this situation.
>      >
>      >     El jue, 30 nov 2023 a las 16:32, Adrian Klaver
>      >     (<adrian.klaver@aklaver.com
>     <mailto:adrian.klaver@aklaver.com> <mailto:adrian.klaver@aklaver.com
>     <mailto:adrian.klaver@aklaver.com>>>)
>      >     escribió:
>      >
>      >         On 11/30/23 07:23, Adrian Klaver wrote:
>      >          > On 11/30/23 05:37, Loles wrote:
>      >          >> Hi!
>      >          >>
>      >          >> I have this situation on a server that is giving me
>     problems.
>      >          >>
>      >          >> postgres@hostname:~$ pg_lsclusters
>      >          >> Ver Cluster  Port Status Owner    Data directory
>      >           Log file
>      >          >> 14  main     5432 online postgres
>     /var/lib/postgresql/14/main
>      >          >> /var/log/postgresql/postgresql-14-main.log
>      >          >> 14  main_old 5432 online postgres
>     /var/lib/postgresql/14/main
>      >          >> /var/log/postgresql/postgresql-14-main_old.log
>      >          >>
>      >          >> How can I stop, even delete, the main_old cluster?
>      >          >
>      >          > Assuming you are on  Debian/Ubuntu.
>      >          >
>      >          > 1) sudo pg_ctlcluster stop 14 main_old
>      >          >
>      >          >      This will stop the server for this session
>      >          >
>      >          > 2) sudo vi  /etc/postgresql/14/main_old/start.conf
>      >          >
>      >          >      Change auto to manual.
>      >          >      This will keep the server from restarting on reboot.
>      >          >      You can still start it using
>      >          >       sudo pg_ctlcluster start 14 main_old
>      >          >      Though if you want to do that then:
>      >          >          vi /etc/postgresql/14/main_old/postgresql.conf
>      >          >       and change port to something other then 5432.
>      >          >
>      >          > 3) If you have determined you really don't need that
>     server
>      >         and have all
>      >          > the data safely backed up or moved to the other server,
>      >         then(THIS IS NOT
>      >          > REVERSIBLE):
>      >          >
>      >          >      sudo pg_dropcluster 14 main_old
>      >
>      >         Blaming it on not enough coffee, but I just noticed both
>      >         clusters are
>      >         pointing at the same data directory. I would NOT do:
>      >
>      >               sudo pg_dropcluster 14 main_old
>      >
>      >          >
>      >          >>
>      >          >> Thanks!
>      >          >>
>      >          >
>      >
>      >         --
>      >         Adrian Klaver
>      > adrian.klaver@aklaver.com <mailto:adrian.klaver@aklaver.com>
>     <mailto:adrian.klaver@aklaver.com <mailto:adrian.klaver@aklaver.com>>
>      >
>
>     --
>     Adrian Klaver
>     adrian.klaver@aklaver.com <mailto:adrian.klaver@aklaver.com>
>

--
Adrian Klaver
adrian.klaver@aklaver.com