Re: lost replication slots after pg_upgrade

On Tue, Oct 13, 2020 at 06:37:14PM +0200, Pavel Stehule wrote:
> 
> 
> út 13. 10. 2020 v 18:33 odesílatel Bruce Momjian <bruce@momjian.us> napsal:
> 
>     On Tue, Oct 13, 2020 at 06:20:41PM +0200, Pavel Stehule wrote:
>     > Hi
>     >
>     > One customer reports issue related to pg_upgrade.
>     >
>     > I found a thread https://www.postgresql-archive.org/
>     >
>     Upgrade-and-re-synchronization-with-logical-replication-pglogical-and-PG-10-td6001990.html
>     >
>     > But I didn't find documentation of this limitation?
> 
>     So, what is the question?  Peter Eisentraut is right that WAL is not
>     preserved, so replication slots are not preserved.  We do have
>     pg_upgrade instructions for upgrading binary replication, but I assume
>     people recreate the slots.
> 
> 
> I cannot find related documentation.

You mean related documentation of how to manage changing replication
slots?

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EnterpriseDB                             https://enterprisedb.com

  The usefulness of a cup is in its emptiness, Bruce Lee