Package org.apache.hadoop.yarn.server.sharedcachemanager

Class SharedCacheManager

java.lang.Object
org.apache.hadoop.service.AbstractService
org.apache.hadoop.service.CompositeService
org.apache.hadoop.yarn.server.sharedcachemanager.SharedCacheManager
All Implemented Interfaces:
Closeable, AutoCloseable, org.apache.hadoop.service.Service
@Private @Unstable public class SharedCacheManager extends org.apache.hadoop.service.CompositeService
This service maintains the shared cache meta data. It handles claiming and releasing of resources, all rpc calls from the client to the shared cache manager, and administrative commands. It also persists the shared cache meta data to a backend store, and cleans up stale entries on a regular basis.

  • Nested Class Summary

    Nested classes/interfaces inherited from class org.apache.hadoop.service.CompositeService

    org.apache.hadoop.service.CompositeService.CompositeServiceShutdownHook

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

    org.apache.hadoop.service.Service.STATE

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final int
    SHUTDOWN_HOOK_PRIORITY
    Priority of the SharedCacheManager shutdown hook.

    Fields inherited from class org.apache.hadoop.service.CompositeService

    STOP_ONLY_STARTED_SERVICES

  • Constructor Summary

    Constructors
    Constructor
    Description
    SharedCacheManager()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static void
    main(String[] args)
     
    protected void
    serviceInit(org.apache.hadoop.conf.Configuration conf)
     
    protected void
    serviceStop()
     

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

    addIfService, addService, getServices, removeService, serviceStart

    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

  • Field Details

    • SHUTDOWN_HOOK_PRIORITY

      public static final int SHUTDOWN_HOOK_PRIORITY
      Priority of the SharedCacheManager shutdown hook.
      See Also:

  • Constructor Details

    • SharedCacheManager

      public SharedCacheManager()

  • Method Details

    • serviceInit

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

    • serviceStop

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

    • main

      public static void main(String[] args)