Re: repmgr cannot bring up the standby database after switchover manaully - Mailing list pgsql-admin

From Tayyab Fayyaz
Subject Re: repmgr cannot bring up the standby database after switchover manaully
Date
Msg-id CAFVRaQ3g9MhR54kVLPLTjhb=i3XvnBo1JikdLrLvVpw5MbXJ+g@mail.gmail.com
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In response to Re: repmgr cannot bring up the standby database after switchover manaully  (Imran Khan <imran.k.23@gmail.com>)
List pgsql-admin
Hello Imran,

  This issue is not related to switchover; its  failover completed successfully, but the previous primary was not re-added as a standby. The behavior can be seen in the attached screenshots  


image.png

Tayyab

On Wed, Oct 1, 2025 at 3:12 AM Imran Khan <imran.k.23@gmail.com> wrote:
Hi Tayyab,

 Is this a default behavior? We have 4 nodes cluster but never had issue in switchovers. 

Thanks, 
Imran

On Wed, Oct 1, 2025, 1:10 PM Tayyab Fayyaz <tayyab.humayl@gmail.com> wrote:
Hello Chris,

I faced this issue it will not add automatically as standby you have to add it manually.

But I wrote a script which perform to add old primary as standby once it's back online.

Tayyab


On Wed, 1 Oct 2025, 3:02 pm Chris Lee, <clee.hk@gmail.com> wrote:
Hi all,

I have 2 postgresql servers. One is the primary and another one is the standby. I am trying to setup repmgr to do the switchover manually. Passwordless ssh have been setup for postgres ID on both servers.

I use this command "repmgr standby switchover --log-level=DEBUG --verbose". The standy database is able to promote to be the primary. For the previous primary database, it was shutdown. It was not able to bring up as standby by repmgr.  

Does anyone encounter this issue before? Thanks a lot for any suggestions.

Here is my OS and DB versions:

OS version: CentOS Stream release 8
Postgres DB version:  15.12
rempmgr version: 5.5.0

Here is the repmgr conf files:
>>>>>
node_id=1  # Use 2 on standby
node_name='primary'
conninfo='host=centos804 user=repmgr dbname=repmgr password=xxx connect_timeout=15'
use_primary_conninfo_password=true
data_directory='/var/lib/pgsql/15/data'  # Adjust for your setup
pg_bindir='/usr/pgsql-15/bin'
service_start_command = 'sudo systemctl start postgresql-15'
service_stop_command  = 'sudo systemctl stop postgresql-15'
<<<<<

>>>>>
node_id=2  # Use 2 on standby
node_name='standby'
conninfo='host=centos803 user=repmgr dbname=repmgr password=xxx connect_timeout=15'
use_primary_conninfo_password=true
data_directory='/var/lib/pgsql/15/data'  # Adjust for your setup
pg_bindir='/usr/pgsql-15/bin'
service_start_command = 'sudo systemctl start postgresql-15'
service_stop_command  = 'sudo systemctl stop postgresql-15'
<<<<<

Regards,
Chris
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