Re: OS upgrade on postgres servers

Pgdg repo
100Gb
Outage window - our decision. Client will accept our plan.
Postgres upgrade may or may not be needed. Need help on both the scenarios

On Tue, 17 Mar 2026, 00:41 Ron Johnson, <ronljohnsonjr(at)gmail(dot)com> wrote:

> 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?
>
> --
> Death to <Redacted>, and butter sauce.
> Don't boil me, I'm still alive.
> <Redacted> lobster!
>