| Package | Description | 
|---|---|
| org.apache.hadoop.service.launcher | This package contains classes, interfaces and exceptions to launch
 YARN services from the command line. | 
| Class and Description | 
|---|
| LaunchableService An interface which services can implement to have their
 execution managed by the ServiceLauncher. | 
| LauncherExitCodes Common Exit codes. | 
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