Re: vacuum won't even start

Alvaro Herrera a écrit :
> Jean-Christophe Praud wrote:
>
>> Hi all,
>>
>> I've a problem on a heavy loaded database: vacuums don't work since
>> about a week. All I got is:
>>
>> mybase=# vacuum verbose analyze public.mytable;
>> INFO: vacuuming "public.mytable"
>> (I stop it after hours)
>>
>> Looking with top and iotop, I see the process takes some cpu and
>> disk io time during several minutes, then it seems to fall asleep.
>> The process isn't locked according to pg_stat_activity.
>>
>
> What are your vacuum_cost_% parameters?
>
>
I've let the default values (not even uncommented in the conf file ;) ):

#vacuum_cost_delay = 0 # 0-1000 milliseconds
#vacuum_cost_page_hit = 1 # 0-10000 credits
#vacuum_cost_page_miss = 10 # 0-10000 credits
#vacuum_cost_page_dirty = 20 # 0-10000 credits
#vacuum_cost_limit = 200 # 1-10000 credits

--
JC
Ph'nglui mglw'nafh Cthulhu n'gah Bill R'lyeh Wgah'nagl fhtagn!