Dmitry O Litvintsev wrote: > Hi > > Since I have posted this nothing really changed. I am starting to panic (mildly). ... > vacuum_cost_delay = 50ms Most likely, this value is far too high. You're causing autovacuum to sleep for a very long time with this setting. Hard to say for certain without seeing the cost_limit value and the other related parameters, but it's most certainly what's causing you pain. The default of 20ms is already too high for most users. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general