| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Gourish Singbal <gourish(at)gmail(dot)com> |
| Cc: | "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org> |
| Subject: | Re: Autovacuuming |
| Date: | 2006-04-24 12:41:55 |
| Message-ID: | 20060424124155.GA13361@surnet.cl |
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| Lists: | pgsql-admin |
Gourish Singbal wrote:
> The Age of the database is 1144759836 . We have enabled autovacuuming .
> The details are:-
> autovacuum = on
Are you sure autovacuum is enabled? Do a "SHOW autovacuum" just to be
sure.
The test for database-wide vacuum is:
database age > big_constant
where:
big_constant = (MaxTransactionId >> 3) * 3 - 100000) = 1610512733
MaxTransactionId = 0xFFFFFFFF
database age = Max(frozen age, vacuum age)
frozen age = next Transaction id - pg_database.datfrozenxid
vacuum age = next Transaction id - pg_database.datvacuumxid
Your database is still 465752897 transactions away from that apparently.
--
Alvaro Herrera http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.
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