Re: Moving from Linux to Linux?

Devrim GÜNDÜZ <devrim@gunduz.org>

From: Devrim Gündüz <devrim@gunduz.org>
To: pgsql-general@lists.postgresql.org, Paul Foerster <paul.foerster@gmail.com>
Date: 2025-03-11T16:30:29Z
Lists: pgsql-general
Hi,

(Sorry for the top posting)

Streaming replication won't work between SLES and RHEL, mostly because of glibc incompatibilities. Use logical replication.


Regards, Devrim

On 11 March 2025 16:22:26 GMT, Paul Foerster <paul.foerster@gmail.com> wrote:
>Hi,
>
>we are considering changing the PostgreSQL platform from SUSE SLE to Red Hat. To keep service interruptions as short as possible, the idea is to set up a streaming replication from the SUSE server to be replaced to a temporary Red Hat server and then replace that SUSE server with the newly setup Red Hat server.
>
>My idea is to set up a streaming replication for this. But this of course only works if the data files would be binary compatible.
>
>So, I wonder, if this is possible. We have a lot of databases, some of them need to be highly available and some are large too.
>
>Are there any obstacles that definitely make that a no-go? Do I risk corruption? It's both Linux, just a different distribution.
>
>Cheers,
>Paul
>