When the MDS liveness probe times out, it should not fail the probe. If
the cluster has a network partition or other issue that causes the Ceph
mon cluster to become unstable, `ceph ...` commands can hang and cause
a timeout. In this case, the MDS should not be restarted so as to not
cause cascading cluster disruption.
Signed-off-by: Blaine Gardner <blaine.gardner@ibm.com>
(cherry picked from commit ad1bae9e1b)