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