Moving from Linux to Linux?

From: Paul Foerster <paul(dot)foerster(at)gmail(dot)com>
To: Pgsql-General List <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Moving from Linux to Linux?
Date: 2025-03-11 16:22:26
Message-ID: 6E6059F6-E5A1-4A8D-8A5E-A41B921BBE67@gmail.com
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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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