From: | Nikhil Shetty <nikhil(dot)dba04(at)gmail(dot)com> |
---|---|
To: | Jack DeVries <jdevries3133(at)gmail(dot)com> |
Cc: | pgsql-docs(at)lists(dot)postgresql(dot)org |
Subject: | Re: Fwd: Adding more detail to pg_upgrade documentation |
Date: | 2022-06-04 09:38:58 |
Message-ID: | CAFpL5VxzjWnfBR0yPUmt+GBsVWRfi_m5dk4M-694dcGn7EqcrQ@mail.gmail.com |
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Lists: | pgsql-admin pgsql-docs |
Hi Jack,
I followed the same steps multiple times but each time, slot had to be
recreated.
The slots under directory pg_replslot are not created in the new cluster
during pg_upgrade.
Thanks and Regards,
Nikhil
On Sat, 4 Jun 2022 at 1:48 AM, Jack DeVries <jdevries3133(at)gmail(dot)com> wrote:
> Hi Nikhil,
>
> From the pgupgrade docs:
>
> > 9. Prepare for standby server upgrades
> >
> > If you are upgrading standby servers using methods outlined in section
> > Step 11, verify that the old standby servers are caught up by running
> > pg_controldata against the old primary and standby clusters. Verify
> > that the “Latest checkpoint location” values match in all clusters.
> > (There will be a mismatch if old standby servers were shut down before
> > the old primary or if the old standby servers are still running.)
> > Also, make sure wal_level is not set to minimal in the postgresql.conf
> > file on the new primary cluster.
>
> (source: https://www.postgresql.org/docs/devel/pgupgrade.html)
>
> I'm a new contributor so please forgive me if I'm on the wrong track,
> but if you follow this step, won't you also be ensuring that replication
> slots do not need to be migrated, since you've just ensured that standby
> clusters are in sync with the primary cluster? Please let me know if I'm
> missing anything!
>
> Thank You,
> Jack DeVries
>
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