Re: OS upgrade on postgres servers

On Mon, Mar 16, 2026 at 2:57 PM Raj <rajeshkumar(dot)dba09(at)gmail(dot)com> wrote:

> Hi all,
>
> I have traditional servers with postgres with replication setup (primary -
> standby). OS team want to upgrade from rhel 8.10 to 10.
>
> As a dba, what is the suggestion we need to give. How do we proceed ?
> Should we stop the posygres servers? Should we get new servers with rhel 10
> and migrate Data?
>

That's certainly a safe method.

> What's the best procedure
>

The main problem is collation change driven by the newer glibc version.

1. How did you install PG (from the RHEL repository, or from the PGDG
repository)?
2. How big are your databases?
3. How big is your outage window?
4. Do you plan on upgrading Postgresql at the same time?

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