| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Svensson Peter <peter(dot)svensson(at)smhi(dot)se> |
| Cc: | Joe Conway <mail(at)joeconway(dot)com>, "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: SV: pgaudit and create postgis extension logs a lot inserts |
| Date: | 2018-01-30 15:26:29 |
| Message-ID: | 20180130152629.GE31052@momjian.us |
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| Thread: | |
| Lists: | pgsql-performance |
On Fri, Jan 19, 2018 at 11:03:42AM +0000, Svensson Peter wrote:
>
> A test to create postgis extension made 4 rsyslog processes run for several minutes with high cpu util,
> and when you have only 8 cpu:s this take lot of resources.
> The create command also have to wait until all the log are written so there are great impact.
> Log file got 16 GB big only for this.
Uh, that seems odd. Is rsyslog fsync'ing each write? You should check
the docs on that. Here is an example report:
http://kb.monitorware.com/simple-question-what-does-the-dash-t10237.html
I don't see the dash behavior mentioned in my Debian Jessie rsyslogd
manual page though.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ As you are, so once was I. As I am, so you will be. +
+ Ancient Roman grave inscription +
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