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Date: Sun, 4 Aug 2024 08:13:10 -0700
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Subject: Re: Can't change tcp_keepalives_idle
To: "Abraham, Danny" <danny_abraham@bmc.com>,
 pgsql-general <pgsql-general@lists.postgresql.org>
References: <SJ2PR02MB97060CFEDBDE9FC11F1844358EBD2@SJ2PR02MB9706.namprd02.prod.outlook.com>
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From: Adrian Klaver <adrian.klaver@aklaver.com>
In-Reply-To: <SJ2PR02MB97060CFEDBDE9FC11F1844358EBD2@SJ2PR02MB9706.namprd02.prod.outlook.com>
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On 8/4/24 04:16, Abraham, Danny wrote:
> Hi,
> 
> Change tcp_keepalives_idle in postgresql.conf from 0 to 300 , then pg_ctl reload but it stays with the old 0 value.
> Tried restart and it did not work. PG Log says it was changed.
> Reset_cal marked OK, but no real change ( ins how)
> 
> -[ RECORD 1 ]---+-----------------------------------------------------
> name            | tcp_keepalives_idle
> setting         | 0
> unit            | s
> category        | Connections and Authentication / Connection Settings
> short_desc      | Time between issuing TCP keepalives.
> extra_desc      | A value of 0 uses the system default.
> context         | user
> vartype         | integer
> source          | session
> min_val         | 0
> max_val         | 2147483647
> enumvals        |
> boot_val        | 0
> reset_val       | 1800
> sourcefile      |
> sourceline      |
> pending_restart | f


source          | session

Something is setting the value for the session.

Have you used

https://www.postgresql.org/docs/current/sql-alterrole.html

or

https://www.postgresql.org/docs/current/sql-alterdatabase.html

to SET tcp_keepalives_idle?

Doing:

select * from pg_db_role_setting ;

will help answer the above.

> 
> Thanks
> 
> Danny
> 
> 

-- 
Adrian Klaver
adrian.klaver@aklaver.com