On Tue, Mar 14, 2017 at 5:09 AM, Антон Тарабрин <tarabanton@xxxxxxxxx> wrote:
Good day. It seems that we have some strange case of VACUUM malfunction and table bloating.
PostgreSQL 9.5.3
Are you using replication slots?
See this, fixed in 9.5.5:
commit de396a1cb34626619ddc6fb9dec6d12abee8b589
Author: Andres Freund <andres@xxxxxxxxxxx>
Date: Wed Aug 17 13:15:03 2016 -0700
Properly re-initialize replication slot shared memory upon creation.
Slot creation did not clear all fields upon creation. After start the
memory is zeroed, but when a physical replication slot was created in
the shared memory of a previously existing logical slot, catalog_xmin
would not be cleared. That in turn would prevent vacuum from doing its
duties.
Cheers,
Jeff
