log_hostname value is off:
postgres=# show log_hostname;
log_hostname
--------------
off
(1 row)
log_hostname
--------------
off
(1 row)
There is no change in postgresql.conf
On Tue, Jan 2, 2024 at 9:25 PM Thomas Kellerer <shammat@xxxxxxx> wrote:
pramod kg schrieb am 02.01.2024 um 14:58:
> Hi Experts,
>
> We have upgraded the OS from RHEL7 to RHEL8 in our testbed machines. After upgrading, PostgrSQL local connection is taking ~4 seconds (Both TLS and non TLS connection). Please advise on what to be verified? There is no change in postgresql.conf or pg_hba.conf.
>
> PostgreSQL version is 13.12.
> RHEL Version: Red Hat Enterprise Linux release 8.8 (Ootpa)
Did you enable log_hostname?
That does a revers DNS lookup which could be a reason for the connection suddenly taking longer.
