NodeManager Component Health

Ambari.SCOM.Rollup.NodeManagerComponentToYarnServiceAvailability (DependencyMonitor)

Rolls up NodeManager Component availability monitors to the Hadoop Yarn Service.

Knowledge Base article:

Summary

This monitor is the rollup of availability monitoring for NodeManager Host Component. If the state is unknown - monitoring has not been initialized yet.

Causes

An unhealthy state for this monitor indicates some problem with availability of NodeManager Host Component. View all current alerts for Yarn Cluster Service using this link:

View Alerts

Resolutions

Use the health explorer to drill down and find the cause of the unhealthy state. Use the knowledge on the specific monitor causing the issue to troubleshoot and fix the problem.

Element properties:

TargetAmbari.SCOM.ClusterService.Yarn
Parent MonitorSystem.Health.AvailabilityState
AlgorithmWorstOf
Source MonitorSystem.Health.AvailabilityState
RelationshipAmbari.SCOM.YarnServiceContainsNodeManagerComponent
CategoryAvailabilityHealth
EnabledTrue
Alert GenerateFalse
Alert Auto ResolveFalse
RemotableTrue
AccessibilityPublic

Source Code:

<DependencyMonitor ID="Ambari.SCOM.Rollup.NodeManagerComponentToYarnServiceAvailability" Target="Ambari.SCOM.ClusterService.Yarn" ParentMonitorID="Health!System.Health.AvailabilityState" RelationshipType="Ambari.SCOM.YarnServiceContainsNodeManagerComponent" MemberMonitor="Health!System.Health.AvailabilityState" Accessibility="Public" Enabled="true" Remotable="true" Priority="Normal">
<Category>AvailabilityHealth</Category>
<Algorithm>WorstOf</Algorithm>
</DependencyMonitor>