Re: Can postgres run autovacuum tasks when autovacuum is disabled?

Andrey Zhidenkov wrote
> I'm confused about this:
> 
> [postgres@srv log]$ grep autovacuum ~/data/postgresql.conf
> autovacuum = off # Enable autovacuum subprocess?  'on'
> log_autovacuum_min_duration = 0 # -1 disables, 0 logs all actions and
> autovacuum_naptime = 10min # time between autovacuum runs
> 
> So, as you can see, autovacuum is disabled now and I could not seen any
> autovacuum tasks about few hours. But now
> I can see this:
> 
> srv=# select backend_start, query from pg_stat_activity where query ilike
> '%vacuum%';
>          backend_start         |                                     
> query
> 
> -------------------------------+---------------------------------------------------------------------------------
>  2014-07-29 21:38:42.882383+04 | select backend_start, query from
> pg_stat_activity where query ilike '%vacuum%';
>  2014-07-30 10:21:51.5511+04   | autovacuum: VACUUM ANALYZE customer_email
>  2014-07-30 10:43:19.49936+04  | autovacuum: VACUUM ANALYZE cdr_tech
> (3 rows)
> 
> The problem is that table cdr_tech is very large (70Gb) and I couldn't
> wait
> while autovacuum is finished, I would like to run vacuum manually at night
> time.
> 
> Whan I do wrong?
> 
> Best regards, Andrey Zhidenkov
> 
>                        _
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The obvious question is whether you sighup/rebooted the server after making
the change?

It helps to show what your session sees as the current guc value.

David J.




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