| Package | Description | 
|---|---|
| org.apache.hadoop.yarn.server.nodemanager | |
| org.apache.hadoop.yarn.server.nodemanager.health | 
| Class and Description | 
|---|
| HealthReporter Interface providing information about the health of a service. | 
| NodeHealthCheckerService This class provides functionality of checking the health of a node and
 reporting back to the service for which the health checker has been asked to
 report. | 
| Class and Description | 
|---|
| HealthReporter Interface providing information about the health of a service. | 
| NodeHealthScriptRunner The class which provides functionality of checking the health of the node
 using the configured node health script and reporting back to the service
 for which the health checker has been asked to report. | 
| TimedHealthReporterService A  HealthReporterskeleton for regularly checking a specificTimerTaskand obtaining information about it. | 
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