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Message-ID: <8d340169-b500-4048-a665-0700813313a3@aklaver.com>
Date: Thu, 23 Oct 2025 08:49:34 -0700
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Subject: Re: Index corruption issue after migration from RHEL 7 to RHEL 9
 (PostgreSQL 11 streaming replication)
To: Bala M <krishna.pgdba@gmail.com>, Greg Sabino Mullane
 <htamfids@gmail.com>, chris+google@qwirx.com
Cc: pgsql-general@lists.postgresql.org
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From: Adrian Klaver <adrian.klaver@aklaver.com>
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On 10/23/25 07:51, Bala M wrote:
> Hi All,
> 
> Thank you for the valuable responses regarding the *index corruption 
> issue* we observed during our test migration of a *PostgreSQL 11* 
> environment from *RHEL 7 to RHEL 9* using *streaming replication*.
> 
> Based on the replies, I understand that.

>     Suggested upgrading to a newer PostgreSQL version (e.g., v16 or v18)
>     and using *logical replication* or *pg_dump/restore* for a clean
>     rebuild.

I am not sure version 18 would a good choice at this time, it has just 
been released and has no bug fix releases against it yet. Given the 
other complications in your upgrade, OS upgrade and multi-version jump, 
I don't think you want to add a brand new version to the mix. Postgres 
17 on the other hand has been out a year and has had 6 bug/security 
fixes. It is probably a more stable target version.

-- 
Adrian Klaver
adrian.klaver@aklaver.com