memcached shows unknown status after deployment

[Jeff Hillman]

There is no application feedback from memcached when the charm is fully deployed. It can be verified as functional, but juju status shows unknown instead of active.

Also, there is no "message" coming from memcached, it is blank.

$ juju status memcached
Model Controller Cloud/Region Version SLA
openstack foundations-maas foundations-maas 2.3.1 unsupported

App Version Status Scale Charm Store Rev OS Notes
memcached unknown 3 memcached jujucharms 18 ubuntu

Unit Workload Agent Machine Public address Ports Message
memcached/0 unknown idle 0/lxd/6 10.243.9.102 11211/tcp
memcached/1* unknown idle 1/lxd/7 10.243.9.136 11211/tcp
memcached/2 unknown idle 12/lxd/7 10.243.9.99 11211/tcp

Machine State DNS Inst id Series AZ Message
0 started 10.243.16.48 eaahdk xenial zone2 Deployed
0/lxd/6 started 10.243.9.102 juju-03618f-0-lxd-6 xenial zone2 Container started
1 started 10.243.16.47 xsmyde xenial default Deployed
1/lxd/7 started 10.243.9.136 juju-03618f-1-lxd-7 xenial default Container started
12 started 10.243.16.49 xe7pyw xenial zone2 Deployed
12/lxd/7 started 10.243.9.99 juju-03618f-12-lxd-7 xenial zone2 Container started

Relation provider Requirer Interface Type Message
memcached:cache designate:coordinator-memcached memcache regular
memcached:cluster memcached:cluster memcached-replication peer