Services.The health of all services in the system are monitored.
If a service is found to be unhealthy, the system will automatically attempt to self-heal, generally by restarting the process.
Service interruptions may occur depending on the type of failure.
Events regarding failures detected can be viewed in the Cluster Management dashboard.
Nodes. When a cluster node becomes unavailable for any reason, whether planned or unplanned:
The cluster will generally move the services that had been running on that node onto other nodes.
It may take five minutes or more for a node to be recognized as unavailable. This delay is designed to prevent unwarranted service disruptions that could be triggered by temporary conditions, such as intermittent network issues.
NOTE:Instructions are provided for gracefully shutting down or rebooting a node and should be used any time a node is shut down or rebooted. (See the Cluster Management - Nodes help.)