Re: 42.0.0.jre7, driver logging takes 30-40% of my server's time

From: Dave Cramer <pg(at)fastcrypt(dot)com>
To: Konstantinos Kougios <kostas(dot)kougios(at)googlemail(dot)com>
Cc: Jorge Solórzano <jorsol(at)gmail(dot)com>, List <pgsql-jdbc(at)postgresql(dot)org>
Subject: Re: 42.0.0.jre7, driver logging takes 30-40% of my server's time
Date: 2017-03-22 17:32:23
Message-ID: CADK3HHLNnOoPWhdeQa_DYctdK=2rL25d5BFc8PH8pGLSv-Ja8w@mail.gmail.com
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I'm confused when you say it passes this, does it return or continue after
this if statement ?

Dave Cramer

davec(at)postgresintl(dot)com
www.postgresintl.com

On 22 March 2017 at 13:24, Konstantinos Kougios <
kostas(dot)kougios(at)googlemail(dot)com> wrote:

> I am using logback and I don't see any postgres-driver related logging, so
> I assume it should be off
>
> Looking at the stacktrace of the profile though, it seems it passes this
> code:
>
> if (!isLoggable(level)) {
> return;}
>
>
> So it seems as if it is ON though it doesn't log anything.
>
>
> On 22/03/17 17:21, Jorge Solórzano wrote:
>
> Have you enabled the Logger with a FINEST (TRACE) level?
>
>
>
> On Wed, Mar 22, 2017 at 11:13 AM, Konstantinos Kougios <
> kostas(dot)kougios(at)googlemail(dot)com> wrote:
>
>> I tried to paste an image with a profile, but my email was rejected.
>>
>> It seems logging is called in places like row.getInt(), row.getString()
>> etc without a check for the logging level. Then it takes a lot of time for
>> those to be processed, especially for queries that get a lot of data. It
>> goes down to parsing strings and locale and it just is slow. I see postgres
>> processing a query for 1 sec but on the java side it takes 5 secs to get
>> the data back to my code. Part of this slowdown is due to the logging. Can
>> it be optimized, i.e. having a boolean to true/false if logging is enabled
>> and then do the calls?
>>
>> Thanks
>>
>>
>>
>>
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>
>
>

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