Re: Prepared statement does not exist

Поиск
Список
Период
Сортировка
От Nimesh Satam
Тема Re: Prepared statement does not exist
Дата
Msg-id 965aa3ed0903200203w75bd3b96ofdf5b080dbbdd4c2@mail.gmail.com
обсуждение исходный текст
Ответ на Re: Prepared statement does not exist  (Glyn Astill <glynastill@yahoo.co.uk>)
Ответы Re: Prepared statement does not exist  (Glyn Astill <glynastill@yahoo.co.uk>)
Список pgsql-performance

Glyn Astill,

Thank for your reply. But can you confirm on this? As what I see from
the logs, its pgpool which is trying to deallocate the prepared
statement and not the application. The application just disconnects
and not tyring to use the same connection.

Regards,
Nimesh.

On Thu, Mar 19, 2009 at 5:07 PM, Glyn Astill <glynastill@yahoo.co.uk> wrote:




--- On Thu, 19/3/09, Nimesh Satam <nimesh.zedo@gmail.com> wrote:
>
> We are receving the following error in the postgres
> database logs:
>
> 2009-03-19 02:14:20 PDT [2547]: [79-1] LOG:  duration:
> 0.039 ms  statement:
> RESET ALL
> 2009-03-19 02:14:20 PDT [2547]: [80-1] LOG:  duration:
> 0.027 ms  statement:
> SET SESSION AUTHORIZATION DEFAULT
> 2009-03-19 02:14:20 PDT [2547]: [81-1] ERROR:  prepared
> statement "S_1" does
> not exist
> 2009-03-19 02:14:20 PDT [2547]: [82-1] STATEMENT:
> DEALLOCATE "S_1"
> 2009-03-19 02:14:20 PDT [2547]: [83-1] ERROR:  prepared
> statement "S_4" does
> not exist
> 2009-03-19 02:14:20 PDT [2547]: [84-1] STATEMENT:
> DEALLOCATE "S_4"
>
> We receive this errors when we start connecting the java
> application
> thorugh pgpool. What causes this problem and how can it be
> avoided?

Looks like your app is dissconnecting from pgpool which is causing pgpool to send the RESET ALL, this will deallocate the prepared statement. Then the app is reconnecting to pgpool again and expecting the prepared statement to still be available, which it will not be.




В списке pgsql-performance по дате отправления:

Предыдущее
От: Scott Carey
Дата:
Сообщение: Re: Proposal of tunable fix for scalability of 8.4
Следующее
От: Richard Huxton
Дата:
Сообщение: Re: Need help with one query