| From: | Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at> |
|---|---|
| To: | Raj <rajeshkumar(dot)dba09(at)gmail(dot)com>, Pgsql-admin <pgsql-admin(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: RHEL upgrade |
| Date: | 2026-02-16 14:42:11 |
| Message-ID: | d376c070789b4620714a822b6e5c6fccb47d6c3b.camel@cybertec.at |
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| Lists: | pgsql-admin |
On Mon, 2026-02-16 at 18:11 +0530, Raj wrote:
> We are having Rhel 8.10 and want to upgrade to 9.7.
>
> We are running postgresql 15.10 where Logical replication is running.
>
> What are the impact of OS upgrade? What is recommended? Is in place upgrade recommended? Can replication break?
> What are the things we need to be conscious about ?
If you disable logical replication before the upgrade, you can resume it
afterwards.
There is the risk that changes in the C library collation can corrupt
some indexes; see https://wiki.postgresql.org/wiki/Locale_data_changes
and https://www.cybertec-postgresql.com/en/operating-system-upgrade-corrupts-indexes/
Yours,
Laurenz Albe
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