Re: canceling autovacuum task woes

Robert Haas <robertmhaas@gmail.com>

From: Robert Haas <robertmhaas@gmail.com>
To: Steve Singer <ssinger@ca.afilias.info>
Cc: pgsql-hackers@postgresql.org
Date: 2012-07-24T18:21:40Z
Lists: pgsql-hackers
On Tue, Jul 24, 2012 at 2:11 PM, Steve Singer <ssinger@ca.afilias.info> wrote:
> On 12-07-24 01:48 PM, Robert Haas wrote:
>> I am running into a lot of customer situations where the customer
>> reports that "canceling autovacuum task" shows up in the logs, and
>> it's unclear whether this is happening often enough to matter, and
>> even more unclear what's causing it.
>
> Could autovacuum be compacting a lot of space at the end of the table.  This
> is described
> in the thread
> http://archives.postgresql.org/message-id/4D8DF88E.7080205@Yahoo.com

You (and Andres) may well be right, but I think the way we find out is
to add some better logging.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company