From: Justin Pryzby <pryzby@telsasoft.com>
To: Luiz Felipph <luizfelipph@gmail.com>
Cc: pgsql-performance@lists.postgresql.org
Subject: Re: Optimal configuration for server
Date: Tue, 8 Mar 2022 00:44:55 -0600
Message-ID: <20220308064455.GT27651@telsasoft.com> (raw)
In-Reply-To: <CABCV0czrGy1XfyZ-tXKH=Xts+xo6vvvYnxN4Eb7Q136zYAk9sA@mail.gmail.com>
References: <CABCV0czrGy1XfyZ-tXKH=Xts+xo6vvvYnxN4Eb7Q136zYAk9sA@mail.gmail.com>
On Mon, Mar 07, 2022 at 08:51:24AM -0300, Luiz Felipph wrote:
> My current problem:
>
> under heavyload, i'm getting "connection closed" on the application
> level(java-jdbc, jboss ds)
Could you check whether the server is crashing ?
If you run "ps -fu postgres", you can compare the start time ("STIME") of the
postmaster parent process with that of the persistent, auxilliary, child
processes like the checkpointer. If there was a crash, the checkpointer will
have restarted more recently than the parent process.
The SQL version of that is like:
SELECT date_trunc('second', pg_postmaster_start_time() - backend_start) FROM pg_stat_activity ORDER BY 1 DESC LIMIT 1;
--
Justin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: pryzby@telsasoft.com, luizfelipph@gmail.com, pgsql-performance@lists.postgresql.org
Subject: Re: Optimal configuration for server
In-Reply-To: <20220308064455.GT27651@telsasoft.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox