Re: Moving from Linux to Linux?

From: Devrim Gündüz <devrim(at)gunduz(dot)org>
To: pgsql-general(at)lists(dot)postgresql(dot)org, Paul Foerster <paul(dot)foerster(at)gmail(dot)com>
Subject: Re: Moving from Linux to Linux?
Date: 2025-03-11 16:30:29
Message-ID: CADF6590-4432-447D-818D-07C150224A37@gunduz.org
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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(dot)foerster(at)gmail(dot)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
>

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