Major upgrade in patroni cluster

From: Raj <rajeshkumar(dot)dba09(at)gmail(dot)com>
To: Pgsql-admin <pgsql-admin(at)lists(dot)postgresql(dot)org>
Subject: Major upgrade in patroni cluster
Date: 2026-06-28 16:23:00
Message-ID: CAJk5Atax1egLDrB3YUb1+q5kGfyFpMsN0H5djSacL309k5C28Q@mail.gmail.com
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Hi All,

I have a three node PATRONI cluster with postgres 17.10 version with
PGBACKREST, pgnouncer and haproxy.

We would like to upgrade postgres 18.4 version.

What are the high level steps with minimal downtime? Though I did some
research already, would like to understand how it's been followed.

Responses

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