Re: [PERFORM] Odd sudden performance degradation related to temp object churn

Поиск
Список
Период
Сортировка
От Jerry Sievers
Тема Re: [PERFORM] Odd sudden performance degradation related to temp object churn
Дата
Msg-id 87mv71eoep.fsf@jsievers.enova.com
обсуждение исходный текст
Ответ на Re: [PERFORM] Odd sudden performance degradation related to tempobject churn  (Peter Geoghegan <pg@bowt.ie>)
Ответы Re: [PERFORM] Odd sudden performance degradation related to tempobject churn  (Scott Marlowe <scott.marlowe@gmail.com>)
Список pgsql-performance
Peter Geoghegan <pg@bowt.ie> writes:

> On Mon, Aug 14, 2017 at 12:53 PM, Jeremy Finzel <finzelj@gmail.com> wrote:
>
>> This particular db is on 9.3.15.  Recently we had a serious performance
>> degradation related to a batch job that creates 4-5 temp tables and 5
>> indexes.  It is a really badly written job but what really confuses us is
>> that this job has been running for years with no issue remotely approaching
>> this one.  We are also using pgpool.
>
> Did you happen to notice that this occurred when you upgrading point
> release? If so, what version did you move from/to?

The system was last started back in November.  Running 9.3.15.

Not aware of any host system libs or whatever change recently but will investigate.

>
> --
> Peter Geoghegan

--
Jerry Sievers
Postgres DBA/Development Consulting
e: postgres.consulting@comcast.net
p: 312.241.7800


В списке pgsql-performance по дате отправления:

Предыдущее
От: Peter Geoghegan
Дата:
Сообщение: Re: [PERFORM] Odd sudden performance degradation related to tempobject churn
Следующее
От: Mariel Cherkassky
Дата:
Сообщение: Re: [PERFORM] performance problem on big tables