Package org.apache.hadoop.yarn.service.client

Class SystemServiceManagerImpl

java.lang.Object
org.apache.hadoop.service.AbstractService
org.apache.hadoop.yarn.service.client.SystemServiceManagerImpl
All Implemented Interfaces:
Closeable, AutoCloseable, org.apache.hadoop.service.Service, org.apache.hadoop.yarn.server.service.SystemServiceManager
public class SystemServiceManagerImpl extends org.apache.hadoop.service.AbstractService implements org.apache.hadoop.yarn.server.service.SystemServiceManager
SystemServiceManager implementation. Scan for configure system service path. The service path structure is as follows: SYSTEM_SERVICE_DIR_PATH |---- sync | |--- user1 | | |---- service1.yarnfile | | |---- service2.yarnfile | |--- user2 | | |---- service1.yarnfile | | .... | | |---- async | |--- user3 | | |---- service1.yarnfile | | |---- service2.yarnfile | |--- user4 | | |---- service1.yarnfile | | .... | | sync: These services are launched at the time of service start synchronously. It is a blocking service start. async: These services are launched in separate thread without any delay after service start. Non-blocking service start.

  • Nested Class Summary

    Nested classes/interfaces inherited from interface org.apache.hadoop.service.Service

    org.apache.hadoop.service.Service.STATE

  • Constructor Summary

    Constructors
    Constructor
    Description
    SystemServiceManagerImpl()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    protected void
    serviceInit(org.apache.hadoop.conf.Configuration conf)
     
    protected void
    serviceStart()
     
    protected void
    serviceStop()
     

    Methods inherited from class org.apache.hadoop.service.AbstractService

    close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Constructor Details

    • SystemServiceManagerImpl

      public SystemServiceManagerImpl()

  • Method Details

    • serviceInit

      protected void serviceInit(org.apache.hadoop.conf.Configuration conf) throws Exception
      Overrides:
      serviceInit in class org.apache.hadoop.service.AbstractService
      Throws:
      Exception

    • serviceStart

      protected void serviceStart() throws Exception
      Overrides:
      serviceStart in class org.apache.hadoop.service.AbstractService
      Throws:
      Exception

    • serviceStop

      protected void serviceStop() throws Exception
      Overrides:
      serviceStop in class org.apache.hadoop.service.AbstractService
      Throws:
      Exception