Do you mean the scripting language? Originally we use C++ code with tntdb
(from http://www.tntnet.org/) with the same symptons/issues.
I dont think that counts.
Thanks,
Kojedzinszky Richárd
Euronet Magyarorszag Informatika Zrt.
On Thu, 26 Nov 2015, Karsten Hilbert wrote:
> Date: Thu, 26 Nov 2015 15:41:06 +0100
> From: Karsten Hilbert <Karsten.Hilbert@gmx.net>
> To: pgsql-general@postgresql.org
> Subject: Re: [GENERAL] long transactions / backend memory usage
>
> On Thu, Nov 26, 2015 at 03:35:49PM +0100, krichy@tvnetwork.hu wrote:
>
>> We have run into a case where we run a long transaction, and during the
>> transaction the backend process's memory usage is growing constantly.
>>
>> I've written a script to simulate this, please someone confirm if it is
>> normal or not.
>>
>> The script just inserts and removes rows in a table in a single transaction.
>> If given a parameter, the same row is being inserted and removed.
>>
>> The latter case also produces constantly increasing backend process memory
>> usage.
>>
>> Create the table as in the script, and after run:
>>
>> $ perl pqtest.pl 5
>>
>> I've been running the script for nearly 40 minutes right now, it has done
>> 120k iterations, and the RSS of the postgresql process is still growing.
>>
>> This can be reproduced on 9.3 and 9.4 also.
>
> Can it be reproduced when implemented in another language, too ?
>
> Karsten
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