Ok Thanks Daniel

It show the right value with the connection over the network

Regards

Fabrice

postgres [2867156]=> show tcp_keepalives_idle;
+---------------------+
| tcp_keepalives_idle |
+---------------------+
| 3                   |
+---------------------+
(1 row)

On Wed, Jul 23, 2025 at 1:30 PM Daniel Westermann (DWE) <
daniel.westerm...@dbi-services.com> wrote:

> >From: Fabrice Chapuis <fabrice636...@gmail.com>
> >Sent: Wednesday, July 23, 2025 13:20
> >To: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
> >Subject: Postgres keep alive configuration
> >
> >Hi,
> >
> >I try to configure these 3 parameters to activate keep alive on a sever
> Postgres in version 14.
> >
> >tcp_keepalives_idle = 3
> >tcp_keepalives_interval = 2
> >tcp_keepalives_count = 30
>
> >After issuing alter system set ... command and a pg_reload_conf(); these
> parameters keep value 0.
>
> Did you create a connection over the network when checking the values or
> are you connected over a socket? For socket connections these values will
> always be 0.
>
> Regards
> Daniel

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