Comment 3 for bug 1713688

The charm correctly noticed the IP address change and made a restart request to the leader. However, later in the hook the reset_auth_keyspace_replication handler failed, and it dies with a traceback (see the end of the attached charm.log). This is the real failure, which stopped the restart request being sent to the leader and should have put the unit into an error state. The reason it failed is most likely that the charm is attempting to contact the local cassandra server on the new interface, but because the restart hasn't happened yet the server is still listening on the old interface.

Are you able to confirm that the 100.70.0.134 IP address was the new interface?