Re: tell master to tell it's the master - ? - Mailing list pgsql-admin

From lejeczek
Subject Re: tell master to tell it's the master - ?
Date
Msg-id 3648dbe6-9853-bd4b-b0f8-21366eedb7f5@yahoo.co.uk
Whole thread Raw
In response to Re: tell master to tell it's the master - ?  (Emile Amewoto <emileam@yahoo.com>)
Responses Re: tell master to tell it's the master - ?  (Hotmail <crajac66@hotmail.com>)
List pgsql-admin


On 18/08/2023 11:34, Emile Amewoto wrote:
Hi Lejeczek,
What are you using to control your cluster?
If you are using patroni, you can use regex to grep the Leader or if you are not using any cluster manager you can do:

SELECT Count(pid)) 
          FROM pg_stat_activity WHERE wait_event IS NOT NULL AND backend_type = ‘walsender'
The master will always have walsender process and the standby walreiver

Regards,
Emile

On 18 Aug 2023, at 11:07, lejeczek <peljasz@yahoo.co.uk> wrote:

Hi guys.

Is it possible to configure pgSQL to announce it's being a master and not querying it?
I was hoping for a file whose existence or content would confirm that and would be generated/created by pqSQL itself - am I too naive?

many thanks, L.

Hi, thanks for the tip.
I'm looking at what I wrote - perhaps I was bit vague - ... it's being a master by not querying it & via means of config/uration instead - is what wanted to ask.

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