Re: Issue executing query from container

From: "Peter J(dot) Holzer" <hjp-pgsql(at)hjp(dot)at>
To: pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: Issue executing query from container
Date: 2020-10-30 10:45:18
Message-ID: 20201030104518.GA29818@hjp.at
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On 2020-10-27 17:46:59 +0100, Eudald Valcàrcel Lacasa wrote:
> I've run the automated script several times, and the duration of the
> query is widely variable.
>

[0.005 s vs. 1500 s for the same plan]

> As you can see, they don't seem to differ between each other, but the
> duration is abismaly different.
> I have the database logging everything, what should I look for so that
> it can help me understand this strange behavior?

You might want to turn auto_explain.log_analyze and
auto_explain.log_buffers on. You probably should do this only on a test
system, not the production system as the manual states that
auto_explain.log_analyze "can have an extremely negative impact on
performance".

hp

--
_ | Peter J. Holzer | Story must make more sense than reality.
|_|_) | |
| | | hjp(at)hjp(dot)at | -- Charles Stross, "Creative writing
__/ | http://www.hjp.at/ | challenge!"

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