Re: Can I safely kill a VACUUM ANALYZE with pg_cancel_backend 8.3

Jason Culverhouse <Jason@Mischievous.org> writes:
> I have a vacuum process that has been running on a table for the past 20 days.
> The server is postgres 8.3 on ubuntu linux.

> Can I safely kill the vacuum with:
>     select pg_cancel_backend(26433)

Sure.

20 days is a long time.  Is it actually running, or blocked on a lock?
If not blocked, I have to guess that you've chosen very poor vacuum
delay settings.

            regards, tom lane