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!
