David Barton <dave@xxxxxxxxxxxx> writes: > I am running postgres 9.1.4 on Ubuntu 12.04 and the stats collector is > generating very high IO usage even when nothing appears to be happening > on the system. > I have roughly 150 different databases, each of which is running in 1 of > roughly 30 tablespaces. The databases are small (the dump of most is > are under 100M, and all but 3 are under 1G, nothing larger than 2G). That's a lot of databases. I think your problem probably stems from autovacuum madly trying to cover all of them. Backing off (increasing) autovacuum_naptime to slow its cycle might help. regards, tom lane -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
