How to use

addService

method

in

org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices

 protected void createPolicyMonitors() {
  if (scheduler instanceof PreemptableResourceScheduler
    && conf.getBoolean(YarnConfiguration.RM_SCHEDULER_ENABLE_MONITORS,
    YarnConfiguration.DEFAULT_RM_SCHEDULER_ENABLE_MONITORS)) {
   LOG.info("Loading policy monitors");
   List<SchedulingEditPolicy> policies = conf.getInstances(
     YarnConfiguration.RM_SCHEDULER_MONITOR_POLICIES,
     SchedulingEditPolicy.class);
   if (policies.size() > 0) {
    for (SchedulingEditPolicy policy : policies) {
     LOG.info("LOADING SchedulingEditPolicy:" + policy.getPolicyName());
     // periodically check whether we need to take action to guarantee
     // constraints
     SchedulingMonitor mon = new SchedulingMonitor(rmContext, policy);
     addService(mon);
    }
   } else {
    LOG.warn("Policy monitors configured (" +
      YarnConfiguration.RM_SCHEDULER_ENABLE_MONITORS +
      ") but none specified (" +
      YarnConfiguration.RM_SCHEDULER_MONITOR_POLICIES + ")");
   }
  }
 }
}

 protected void createPolicyMonitors() {
  if (scheduler instanceof PreemptableResourceScheduler
    && conf.getBoolean(YarnConfiguration.RM_SCHEDULER_ENABLE_MONITORS,
    YarnConfiguration.DEFAULT_RM_SCHEDULER_ENABLE_MONITORS)) {
   LOG.info("Loading policy monitors");
   List<SchedulingEditPolicy> policies = conf.getInstances(
     YarnConfiguration.RM_SCHEDULER_MONITOR_POLICIES,
     SchedulingEditPolicy.class);
   if (policies.size() > 0) {
    for (SchedulingEditPolicy policy : policies) {
     LOG.info("LOADING SchedulingEditPolicy:" + policy.getPolicyName());
     // periodically check whether we need to take action to guarantee
     // constraints
     SchedulingMonitor mon = new SchedulingMonitor(rmContext, policy);
     addService(mon);
    }
   } else {
    LOG.warn("Policy monitors configured (" +
      YarnConfiguration.RM_SCHEDULER_ENABLE_MONITORS +
      ") but none specified (" +
      YarnConfiguration.RM_SCHEDULER_MONITOR_POLICIES + ")");
   }
  }
 }
}

private void createAndRegisterOpportunisticDispatcher(
  ApplicationMasterService service) {
 if (!isOpportunisticSchedulingEnabled(conf)) {
  return;
 }
 EventDispatcher oppContainerAllocEventDispatcher = new EventDispatcher(
   (OpportunisticContainerAllocatorAMService) service,
   OpportunisticContainerAllocatorAMService.class.getName());
 // Add an event dispatcher for the
 // OpportunisticContainerAllocatorAMService to handle node
 // additions, updates and removals. Since the SchedulerEvent is currently
 // a super set of theses, we register interest for it.
 addService(oppContainerAllocEventDispatcher);
 rmDispatcher
   .register(SchedulerEventType.class, oppContainerAllocEventDispatcher);
}

addService(rmSecretManagerService);
addService(containerAllocationExpirer);
rmContext.setContainerAllocationExpirer(containerAllocationExpirer);
addService(amLivelinessMonitor);
rmContext.setAMLivelinessMonitor(amLivelinessMonitor);
addService(amFinishingMonitor);
rmContext.setAMFinishingMonitor(amFinishingMonitor);
addService(rmAppLifetimeMonitor);
rmContext.setRMAppLifetimeMonitor(rmAppLifetimeMonitor);
addService(nlm);
rmContext.setNodeLabelManager(nlm);
addService(nam);
rmContext.setNodeAttributesManager(nam);
addService(placementConstraintManager);
rmContext.setPlacementConstraintManager(placementConstraintManager);
  createMultiNodeSortingManager();
multiNodeSortingManager.setRMContext(rmContext);
addService(multiNodeSortingManager);
rmContext.setMultiNodeSortingManager(multiNodeSortingManager);
  createRMDelegatedNodeLabelsUpdater();

addService(rmSecretManagerService);
addService(containerAllocationExpirer);
rmContext.setContainerAllocationExpirer(containerAllocationExpirer);
addService(amLivelinessMonitor);
rmContext.setAMLivelinessMonitor(amLivelinessMonitor);
addService(amFinishingMonitor);
rmContext.setAMFinishingMonitor(amFinishingMonitor);
addService(nlm);
rmContext.setNodeLabelManager(nlm);
addService(nodesListManager);
rmContext.setNodesListManager(nodesListManager);
addService(nmLivelinessMonitor);
addService(resourceTracker);
rmContext.setResourceTrackerService(resourceTracker);
addService(masterService) ;
rmContext.setApplicationMasterService(masterService);
addService(clientRM);
rmContext.setClientRMService(clientRM);
addService(applicationMasterLauncher);

addService(rmSecretManagerService);
addService(containerAllocationExpirer);
rmContext.setContainerAllocationExpirer(containerAllocationExpirer);
addService(amLivelinessMonitor);
rmContext.setAMLivelinessMonitor(amLivelinessMonitor);
addService(amFinishingMonitor);
rmContext.setAMFinishingMonitor(amFinishingMonitor);
addService(nlm);
rmContext.setNodeLabelManager(nlm);
addService(nodesListManager);
rmContext.setNodesListManager(nodesListManager);
addService(nmLivelinessMonitor);
addService(resourceTracker);
rmContext.setResourceTrackerService(resourceTracker);
addService(masterService) ;
rmContext.setApplicationMasterService(masterService);
addService(clientRM);
rmContext.setClientRMService(clientRM);
addService(applicationMasterLauncher);