Re: After DB upgrade from PG13 to PG15 showing error

Kashif Zeeshan <kashi.zeeshan@gmail.com>

From: Kashif Zeeshan <kashi.zeeshan@gmail.com>
To: Ram Pratap Maurya <ram.maurya@lavainternational.in>
Cc: "pgsql-general@postgresql.org" <pgsql-general@postgresql.org>
Date: 2024-08-27T08:52:34Z
Lists: pgsql-general
Hi

On Tue, Aug 27, 2024 at 1:50 PM Ram Pratap Maurya <
ram.maurya@lavainternational.in> wrote:

> Dear Team,
>
>
>
> We have upgraded PostgreSQL DB from version 13 to 15 version .
>
> We are facing issue in PG15 we not enable any parameter related to
> AUTOVACUUM , but still running on PG15 data base.
>
>
>
> Below process showing :
>
>
>
> *2313192 | 02:10:01.283176         |            | myLava  | active |
> autovacuum: VACUUM ANALYZE public.tstock_movement (to prevent wraparound)*
>
>
>
> And one more issue we are facing after upgrade lot of alert is coming in
> DB log file , please suggest this is bug in Postgresql-15 version.
>
>
>
> *2024-08-26 00:00:36.783 IST [702937] WARNING:  oldest xmin is far in the
> past*
>
> *2024-08-26 00:00:36.783 IST [702937] HINT:  Close open transactions soon
> to avoid wraparound problems.*
>
> *        You might also need to commit or roll back old prepared
> transactions, or drop stale replication slots.*
>
> *2024-08-26 00:00:36.784 IST [702937] WARNING:  oldest xmin is far in the
> past*
>
> *2024-08-26 00:00:36.784 IST [702937] HINT:  Close open transactions soon
> to avoid wraparound problems.*
>
> *        You might also need to commit or roll back old prepared
> transactions, or drop stale replication slots.*
>

These are warnings not error, can you please share the error you are
getting.

Thanks
Kashif Zeeshan

>
>
> *DB  OS -RHEL8.*
>
>
>
>
>
> Regards,
>
> Ram Pratap.
>