From: | Amit Sharma <amitpgsql(at)gmail(dot)com> |
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To: | pgsql-admin(at)lists(dot)postgresql(dot)org |
Subject: | PostgreSQL-v13-Repmgr: Split-Brain issue |
Date: | 2024-08-09 15:40:28 |
Message-ID: | CAHER7Lpb38HFMLF-qQPDGNuHJHe4=wETAiYBbiM6V-QK7qjxbA@mail.gmail.com |
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Lists: | pgsql-admin |
Hi,
I have PosgreSQL primary and a local standby(same data center) and a remote
standby for DR purposes. Currently repmgr is enabled on the same servers
for an automatic failover but it's running into split brain issues.
I have two questions:
1. In order to avoid split-brain between primary and local standby, can
repmgr be set up on a separate witness node to help provide fencing or
prevent a split brain?
2. If so, can I use the same witness server for multiple sets of primary
and secondary postgresql servers/clusters? like one witness server for one
environment that can have multiple postgreSQL clusters? Is there any
document available for that configuration?
Thanks
Amit
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