On 2018-Jun-13, Daniel Lagerman wrote:
> Hello!
>
> I have a question where I'm trying to determine the seriousness of the
> problem.
What's your server version?
The way to reclaim members space is to move forwards the
pg_database.datminmxid value from the database where it is oldest; and
the way to move *that* forward is to advance the pg_class.relminmxid
value from the tables in which it is oldest. So you need to set a low
value vacuum_multixact_freeze_min_age and _table_age and vacuum those
tables.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services