Re: Bloat issue on 8.3; autovac ignores HOT page splits?

Поиск
Список
Период
Сортировка
От Josh Berkus
Тема Re: Bloat issue on 8.3; autovac ignores HOT page splits?
Дата
Msg-id 4D3F163E.100@agliodbs.com
обсуждение исходный текст
Ответ на Re: Bloat issue on 8.3; autovac ignores HOT page splits?  (Robert Haas <robertmhaas@gmail.com>)
Ответы Re: Bloat issue on 8.3; autovac ignores HOT page splits?  (Mark Kirkwood <mark.kirkwood@catalyst.net.nz>)
Список pgsql-performance
> Can we see those stats again with n_tup_ins/upd/del?

Sure:

-[ RECORD 2 ]----------+------------------------------
schemaname             | public
relname                | general_info
n_dead_tup             | 12
n_live_tup             | 1
n_tup_upd              | 8817
n_tup_del              | 0
n_tup_ins              | 0
n_tup_hot_upd          | 8817
pg_relation_size       | 155648
pg_total_relation_size | 172032
-[ RECORD 4 ]----------+------------------------------
schemaname             | public
relname                | current_info
n_dead_tup             | 27
n_live_tup             | 1
n_tup_upd              | 3296
n_tup_del              | 0
n_tup_ins              | 0
n_tup_hot_upd          | 3296
pg_relation_size       | 385024
pg_total_relation_size | 409600

One question: in 8.3 and earlier, is the FSM used to track dead_rows for
pg_stat_user_tables?

--
                                  -- Josh Berkus
                                     PostgreSQL Experts Inc.
                                     http://www.pgexperts.com

В списке pgsql-performance по дате отправления:

Предыдущее
От: Robert Haas
Дата:
Сообщение: Re: Bloat issue on 8.3; autovac ignores HOT page splits?
Следующее
От: Mark Kirkwood
Дата:
Сообщение: Re: Bloat issue on 8.3; autovac ignores HOT page splits?