Health policy attach/detach from cluster still successful when send
notification to health manager service with messaging.MessagingTimeout.
This is very bad for the cluster health manager，the following things may happen:
1. When do attach from cluster when messaging.MessagingTimeout occurred，
Register cluster to health registry will be failed,
and then the cluster will not do health check, even though
the policy has attached.
2. When do detach from cluster when messaging.MessagingTimeout occurred,
Unregister cluster to health registry will be failed,
and then the cluster will still do health check, even though the policy