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Message-ID: <86a7a676-a6c0-4b66-a729-adfb80030331@aklaver.com>
Date: Fri, 23 Jan 2026 15:11:19 -0800
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Subject: Re: Resource Usage same In spite of fronting my DB server with
 Pgbouncer ?
To: KK CHN <kkchn.in@gmail.com>
Cc: pgsql-general <pgsql-general@postgresql.org>
References: <CAKgGyB9z_dN_5vOGS34CNMrT74F4OQWBToCHoSjsWShVDOGZyQ@mail.gmail.com>
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 <CAKgGyB8JRMO3uKGYpmHXSuWE-xgt8OQiztSJP7tNwzd4u8L2Eg@mail.gmail.com>
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From: Adrian Klaver <adrian.klaver@aklaver.com>
In-Reply-To: <CAKgGyB8JRMO3uKGYpmHXSuWE-xgt8OQiztSJP7tNwzd4u8L2Eg@mail.gmail.com>
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On 1/23/26 11:47 AM, KK CHN wrote:

> You mean to say the SQL statements are making this issue ?  I also 
> suspected wrongly formed query statements making this much load on the 
> DB server.
>   I also suspect this,  as the developers who write queries are not so 
> expertised for writing optimized queries, needs to be addressed separately.
> 
> How can I find out which query statements are making the DB server on 
> its knees ?  Any method to find the bad queries? what parameters/ 
> behaviours to be checked for finding those query statements which really 
> makes the db server to its knees  by the heavy lifting ?   any hints 
> most welcome, I can explore and fix those ones.

For log settings that deal with statements, take a look at:

https://www.postgresql.org/docs/16/runtime-config-logging.html#RUNTIME-CONFIG-LOGGING-WHEN

and

https://www.postgresql.org/docs/16/runtime-config-logging.html#RUNTIME-CONFIG-LOGGING-WHAT

There is also, for viewing statistics on current activity:

https://www.postgresql.org/docs/16/monitoring-stats.html#MONITORING-STATS-VIEWS

For another view of statistics see the extension:

https://www.postgresql.org/docs/16/pgstatstatements.html

In particular:

https://www.postgresql.org/docs/16/monitoring-stats.html#MONITORING-PG-STAT-ACTIVITY-VIEW

Also for lock activity:

https://www.postgresql.org/docs/16/view-pg-locks.html

> Sorry I missed to mention it, this is an EDB 16 server.   Eventhoug I 
> prefer to use any piece of S/W that is FOSS community editions, 
> sometimes it is demanded to manage these products  too.
> 

EDB has variations of what they offer, a more specific definition would 
be helpful.