After upgrade of the secondary PM node, i now have errors in the journalctl:
Mar 13 11:46:01 mxfilter2 pmgmirror[956]: starting cluster synchronization
Mar 13 11:46:01 mxfilter2 pmgmirror[956]: unable to load rulecache : DBD::Pg::st execute failed: ERROR: relation "rule_attributes" does not...