From: lejeczek <peljasz@yahoo.co.uk>
Cc: pgsql-admin@lists.postgresql.org
Subject: Re: tell master to tell it's the master - ?
Date: Fri, 18 Aug 2023 13:06:58 +0200
Message-ID: <3648dbe6-9853-bd4b-b0f8-21366eedb7f5@yahoo.co.uk> (raw)
In-Reply-To: <6B782D94-E9A9-48D3-829F-0F1DF9585189@yahoo.com>
References: <3e072d55-a260-d4aa-0ea7-0ce395e359eb.ref@yahoo.co.uk>
<3e072d55-a260-d4aa-0ea7-0ce395e359eb@yahoo.co.uk>
<6B782D94-E9A9-48D3-829F-0F1DF9585189@yahoo.com>
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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Subject: Re: tell master to tell it's the master - ?
In-Reply-To: <3648dbe6-9853-bd4b-b0f8-21366eedb7f5@yahoo.co.uk>
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