Re: Allowing VACUUM to time out when waiting for locks?

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Philip Warner <pjw@rhyme.com.au>
Cc: pgsql-hackers@postgresql.org
Date: 2005-01-29T15:53:53Z
Lists: pgsql-hackers
Philip Warner <pjw@rhyme.com.au> writes:
> We have a frequently updated (peak > 5/sec) table with about 1000 rows.
> We run VACCUM FULL on this table every 5 minutes.

I agree with Bruno's comment that you shouldn't be doing that in the
first place.  Plain vacuum (perhaps executed even more often, like
once a minute) will cause fewer locking headaches.

> Is it possible to set up a vacuum to fail if a lock is not granted in
> a limited period of time (eg. 1 minute)?

I think you could do that by setting a statement timeout.

			regards, tom lane