Andrus wrote: > I discovered vacuum_cost_delay=2000 option. Will this remove blocking > issue and allow vacuum full to work ? No. Are you really using vacuum_cost_delay=2000? If so, therein lies your problem. That's a silly value to use for that variable. Useful values are in the 20-40 range probably, or maybe 10-100 being extremely generous. -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance