Re: Operating system upgrades on PostgreSQL nodes using streaming replication

On Wed, Nov 8, 2023 at 8:49 AM Ron <ronljohnsonjr(at)gmail(dot)com> wrote:

> On 11/8/23 06:29, Rahat Agivetova wrote:
> > Hi All,
> >
> > We are planning to upgrade the operating system from Centos 7 on Primary
> > and Standby PostgreSQL nodes that use streaming replication to RHEL 8.
> > What is the recommended order to upgrade OS from Centos 7 to RHEL 8?
> > Standby first, then Primary? Can there be a small time gap between the
> > upgrades or not?
>
> libc change means possible collation change. That means I'd do them both
> at
> the same time, then rebuild any indices with TEXT, CHAR or VARCHAR fields.
>
> --
> Born in Arizona, moved to Babylonia.
>
>
>
See the following wiki page for more information on the collation change
that Ron is referring to

https://wiki.postgresql.org/wiki/Locale_data_changes

--
Keith Fiske
Senior Database Engineer
Crunchy Data - http://crunchydata.com