Comment 9 for bug 1768241

Hitting the same issue here upgrading from rev. 9 to 24. Just keeps looping.

$ juju status ceph-mon
Model Controller Cloud/Region Version
openstack prodcont1 prodmaas 2.3.4

App Version Status Scale Charm Store Rev OS Notes
ceph-mon 10.2.6 maintenance 3 ceph-mon jujucharms 24 ubuntu
ceph-mon-nrpe active 3 nrpe jujucharms 41 ubuntu

Unit Workload Agent Machine Public address Ports Message
ceph-mon/0 maintenance executing 3 10.aa.b.213 (leader-settings-changed) Bootstrapping MON cluster
  ceph-mon-nrpe/0 active idle 10.aa.b.213 ready
ceph-mon/1* active idle 4 10.aa.b.109 Unit is ready and clustered
  ceph-mon-nrpe/1* active idle 10.aa.b.109 ready
ceph-mon/2 maintenance executing 5 10.aa.b.89 (leader-settings-changed) Bootstrapping MON cluster
  ceph-mon-nrpe/2 active idle 10.aa.b.89 ready