Secondary NameNode Component Health

Microsoft.HDInsight.Rollup.SecondaryNameNodeComponentToHdfsServiceAvailability (DependencyMonitor)

Rolls up Secondary NameNode Component availability monitors to the HDInsight HDFS Service.

Knowledge Base article:

Summary

This monitor is the rollup of availability monitoring for Secondary NameNode 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 Secondary NameNode Host Component. View all current alerts for HDFS 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:

Target	Microsoft.HDInsight.ClusterService.Hdfs
Parent Monitor	System.Health.AvailabilityState
Algorithm	WorstOf
Source Monitor	System.Health.AvailabilityState
Relationship	Microsoft.HDInsight.HdfsServiceContainsSecondaryNameNodeComponent
Category	AvailabilityHealth
Enabled	True
Alert Generate	False
Alert Auto Resolve	False
Remotable	True
Accessibility	Public

Source Code:

<DependencyMonitor ID="Microsoft.HDInsight.Rollup.SecondaryNameNodeComponentToHdfsServiceAvailability" Target="Microsoft.HDInsight.ClusterService.Hdfs" ParentMonitorID="Health!System.Health.AvailabilityState" RelationshipType="Microsoft.HDInsight.HdfsServiceContainsSecondaryNameNodeComponent" MemberMonitor="Health!System.Health.AvailabilityState" Accessibility="Public" Enabled="true" Remotable="true" Priority="Normal">

  <Category>AvailabilityHealth</Category>

  <Algorithm>WorstOf</Algorithm>

</DependencyMonitor>