Re: Table bloat in 8.3

Поиск
Список
Период
Сортировка
От Sam Mason
Тема Re: Table bloat in 8.3
Дата
Msg-id 20081113192625.GW2459@frubble.xen.chris-lamb.co.uk
обсуждение исходный текст
Ответ на Table bloat in 8.3  (pgsql-general@ian.org)
Список pgsql-general
On Thu, Nov 13, 2008 at 02:03:22PM -0500, pgsql-general@ian.org wrote:
> I have several tables that when I run VACUUM FULL on, they are under 200k,
> but after a day of records getting added they grow to 10 to 20 megabytes.
> They get new inserts and a small number of deletes and updates.
>
> A normal VACUUM does not shrink the table size, but FULL does, or dumping
> and restoring the database to a test server.

I'd not expect to use a FULL vacuum as part of routine maintaince.
Normally, tables like this will grow until they reach some steady state
and then stay there.  14MB seems a bit big for something that you'd
expect to fit in 200KB though.  Autovacuum is enabled by default in 8.3,
but has it been disabled for some reason here?

A useful thing to post would be the output of a VACUUM VERBOSE on this
table when it's grown for a day.  It may give some clue as to what's
going on.


  Sam

В списке pgsql-general по дате отправления:

Предыдущее
От: pgsql-general@ian.org
Дата:
Сообщение: Table bloat in 8.3
Следующее
От: "Nikolas Everett"
Дата:
Сообщение: Re: Table bloat in 8.3