YARN_RM

YARN_RM Client ClientMRService RMAppManager ApplicationAttemptEventDispatcher RMAppAttempt -> RMAppAttemptEvent ApplicationMasterService AMLivenessMonitor SchedulerEventDispatcher ResourceScheduler -> SchedulerEventType 】ApplicationEventDispatcher RMApp...

Client ClientMRService RMAppManager ApplicationAttemptEventDispatcher RMAppAttempt -> RMAppAttemptEvent ApplicationMasterService AMLivenessMonitor SchedulerEventDispatcher ResourceScheduler -> SchedulerEventType 】ApplicationEventDispatcher RMApp -> RMAppEvent 】ApplicationMasterLauncher NodeEventDispatcher RMNode -> RMNodeEvent 1 submitApplication 2 RMAppManagerSubmitEvent 3 RMAppEvent.START 11 ScheduleEvent . NodeUpdate NodeStatusUpdater 10 heartbeat NodeManager 18 registerApplicationMaster ContainerAllocator 4 RMAppAttemptEvent-START AsyncDispatcher 5 registerAppAttempt 6 SchedulerEvent.APPADDED 7 RMAppAttemptEvent.APP_ACCEPTED 8 RMAppEvent.APP_ACCEPTED 9 Allocate-container-for-AM 14 AMLauncherEvent.LAUNCH RMContainer 12 assignContainers 13 RMAppAttemptEvent CONTAINER_ALLOCATED 15 startContainer for AM 16 RMAppAttemptEvent.LAUNCHED 17 register 19 RMAppAttemptEvent-REGISTERED 20 RMAppEvent.ATTEMPT_REG NMLinenessMonitor ApplicationMaster RMAppAttemptEvent RMAppEvent RMNodeEventSchedulerEventType AMLauncherEvent 本图来自：董的博客，博客网址：dongxicheng.org 本图来自：董的博客，博客网址：dongxicheng.org本图来自：董的博客，博客网址：dongxicheng.org NEW SUBMITTED START ACCEPTED APP_ACCEPTED RUNNING ATTEMPT_REGISTERED FINISHED ATTEMPT_FINISHED YARN Application State Machine [location] org.apache.hadoop.yarn.server.resourcemanager.rmapp/ RMAppImpl.java YARN Application Attempt State Machine CONTAINER_ACQUIRED Fifo scheduler APP_ADDED <> client NEW ALLOCATED START ACQUIRED ACQUIRED RUNNING LAUNCHED COMPLETED FINISHED YARN Container State Machine [location] org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt/ RMAppAttemptImpl.java allocate NEW SUBMITTED START SCHEDULED APP_ACCEPTED ALLOCATED CONTAINER_ALLOCATED LAUNCHED LAUNCHED RUNNING REGISTERED FINISHED UNREGISTERED [location] org.apache.hadoop.yarn.server.resourcemanager.rmcontainer/ RMContainerImpl.java Application Master Launcher AMLauncher NodeManager startC ontainer n o d eH eartB eat# n o d eU p d ate reg isterA p p licatio n M aster AM container container <> ResourceManager <> <> NodeManager NodeManager NodeManager <> Four protocals in YARN: (1) MRClientProtocal: Client <---> ResourceManager/ApplicationMaster (2) AMRMProtocol: ApplicationMaster <---> ResourceManager (3) ContainerManager :ApplicationMaster <---> NodeManager (4) LocalizationProtocol:NodeManager <----> Containers 本图来自：董的博客，博客网址：dongxicheng.org 本图来自：董的博客，博客网址：dongxicheng.org

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