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From: Laurenz Albe <laurenz.albe@cybertec.at>
To: Rui DeSousa <rui.desousa@icloud.com>
To: pgsql-admin <pgsql-admin@postgresql.org>
Subject: Re: Keepalive
Date: Fri, 14 Jun 2024 19:47:11 +0200
Message-ID: <e15acc58d2e0328f096a7d277ef862b5cc3cb271.camel@cybertec.at> (raw)
In-Reply-To: <161042FE-FC86-456B-A8E1-AED38AE01820@icloud.com>
References: <161042FE-FC86-456B-A8E1-AED38AE01820@icloud.com>

On Fri, 2024-06-14 at 11:22 -0400, Rui DeSousa wrote:
> I have a very long running query that is not being terminated after a keep alive timeout event.
> The situation is that the client drops from the network, the servers’ tcp/ip stack drops the
> connection, and the Postgres query continues to run without a network connection.  
> 
> The given system is running on Linux and I’m being told this is expected behavior; however,
> that is not has not been my experience.  My preferred platform to run Postgres on is FreeBSD
> and in cases like this the Postgres session is also terminated once the tcp/ip connection is
> dropped by the kernel.

That would surprise me.

There is the parameter "client_connection_check_interval" exactly for that.

Yours,
Laurenz Albe

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