On Mon, Mar 26, 2018 at 06:32:25PM +0300, Artem Tomyuk wrote: > Thanks, > > as we understand there is a lack of autovacuum max workers in > postgresql.conf. that is a contributing factor. but the sheer size of this table means that something is doing something very bad in your application. > > One question more, what impact would be on streaming replication? Will full > vacuum create extra wal files during full vacuum? Yes it will - in the size of new table. Best regards, depesz