Package org.apache.helix.controller.stages

Examples of org.apache.helix.controller.stages.ClusterEvent

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    setupLiveInstances(clusterName, new int[] {
        0, 1
    });
    setupStateModel(clusterName);

    ClusterEvent event = new ClusterEvent("testEvent");
    event.addAttribute("helixmanager", manager);

    MessageThrottleStage throttleStage = new MessageThrottleStage();
    try {
      runStage(event, throttleStage);
      Assert.fail("Should throw exception since DATA_CACHE is null");
    } catch (Exception e) {
      // OK
    }

    Pipeline dataRefresh = new Pipeline();
    dataRefresh.addStage(new ReadClusterDataStage());
    runPipeline(event, dataRefresh);

    try {
      runStage(event, throttleStage);
      Assert.fail("Should throw exception since RESOURCE is null");
    } catch (Exception e) {
      // OK
    }
    runStage(event, new ResourceComputationStage());

    try {
      runStage(event, throttleStage);
      Assert.fail("Should throw exception since MESSAGE_SELECT is null");
    } catch (Exception e) {
      // OK
    }
    MessageSelectionStageOutput msgSelectOutput = new MessageSelectionStageOutput();
    List<Message> selectMessages = new ArrayList<Message>();
    Message msg =
        createMessage(MessageType.STATE_TRANSITION, "msgId-001", "OFFLINE", "SLAVE", "TestDB",
            "localhost_0");
    selectMessages.add(msg);

    msgSelectOutput.addMessages("TestDB", new Partition("TestDB_0"), selectMessages);
    event.addAttribute(AttributeName.MESSAGES_SELECTED.toString(), msgSelectOutput);

    runStage(event, throttleStage);

    MessageThrottleStageOutput msgThrottleOutput =
        event.getAttribute(AttributeName.MESSAGES_THROTTLE.toString());
    Assert.assertEquals(msgThrottleOutput.getMessages("TestDB", new Partition("TestDB_0")).size(),
        1);

    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
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    Assert.assertEquals(matches.size(), 2);
    Assert.assertTrue(containsConstraint(matches, constraint1));
    Assert.assertTrue(containsConstraint(matches, constraint3));

    // test messageThrottleStage
    ClusterEvent event = new ClusterEvent("testEvent");
    event.addAttribute("helixmanager", manager);

    Pipeline dataRefresh = new Pipeline();
    dataRefresh.addStage(new ReadClusterDataStage());
    runPipeline(event, dataRefresh);
    runStage(event, new ResourceComputationStage());
    MessageSelectionStageOutput msgSelectOutput = new MessageSelectionStageOutput();

    Message msg3 =
        createMessage(MessageType.STATE_TRANSITION, "msgId-003", "OFFLINE", "SLAVE", "TestDB",
            "localhost_0");

    Message msg4 =
        createMessage(MessageType.STATE_TRANSITION, "msgId-004", "OFFLINE", "SLAVE", "TestDB",
            "localhost_0");

    Message msg5 =
        createMessage(MessageType.STATE_TRANSITION, "msgId-005", "OFFLINE", "SLAVE", "TestDB",
            "localhost_0");

    Message msg6 =
        createMessage(MessageType.STATE_TRANSITION, "msgId-006", "OFFLINE", "SLAVE", "TestDB",
            "localhost_1");

    List<Message> selectMessages = new ArrayList<Message>();
    selectMessages.add(msg1);
    selectMessages.add(msg2);
    selectMessages.add(msg3);
    selectMessages.add(msg4);
    selectMessages.add(msg5); // should be throttled
    selectMessages.add(msg6); // should be throttled

    msgSelectOutput.addMessages("TestDB", new Partition("TestDB_0"), selectMessages);
    event.addAttribute(AttributeName.MESSAGES_SELECTED.toString(), msgSelectOutput);

    runStage(event, throttleStage);

    MessageThrottleStageOutput msgThrottleOutput =
        event.getAttribute(AttributeName.MESSAGES_THROTTLE.toString());
    List<Message> throttleMessages =
        msgThrottleOutput.getMessages("TestDB", new Partition("TestDB_0"));
    Assert.assertEquals(throttleMessages.size(), 4);
    Assert.assertTrue(throttleMessages.contains(msg1));
    Assert.assertTrue(throttleMessages.contains(msg2));
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  @BeforeMethod()
  public void setup() {
    String clusterName = "testCluster-" + UUID.randomUUID().toString();
    manager = new Mocks.MockManager(clusterName);
    accessor = manager.getHelixDataAccessor();
    event = new ClusterEvent("sampleEvent");
  }
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      NotificationContext changeContext) {
    logger.info("START: GenericClusterController.onStateChange()");
    if (changeContext == null || changeContext.getType() != Type.CALLBACK) {
      _cache.requireFullRefresh();
    }
    ClusterEvent event = new ClusterEvent("currentStateChange");
    event.addAttribute("helixmanager", changeContext.getManager());
    event.addAttribute("instanceName", instanceName);
    event.addAttribute("changeContext", changeContext);
    event.addAttribute("eventData", statesInfo);
    _eventQueue.put(event);
    logger.info("END: GenericClusterController.onStateChange()");
  }
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    logger.info("START: GenericClusterController.onMessage()");
    if (changeContext == null || changeContext.getType() != Type.CALLBACK) {
      _cache.requireFullRefresh();
    }

    ClusterEvent event = new ClusterEvent("messageChange");
    event.addAttribute("helixmanager", changeContext.getManager());
    event.addAttribute("instanceName", instanceName);
    event.addAttribute("changeContext", changeContext);
    event.addAttribute("eventData", messages);
    _eventQueue.put(event);

    if (_clusterStatusMonitor != null && messages != null) {
      _clusterStatusMonitor.addMessageQueueSize(instanceName, messages.size());
    }
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          + _lastSeenInstances + ", lastSeenSessions: " + _lastSeenSessions);
      liveInstances = Collections.emptyList();
      checkLiveInstancesObservation(liveInstances, changeContext);
    }

    ClusterEvent event = new ClusterEvent("liveInstanceChange");
    event.addAttribute("helixmanager", changeContext.getManager());
    event.addAttribute("changeContext", changeContext);
    event.addAttribute("eventData", liveInstances);
    _eventQueue.put(event);
    logger.info("END: Generic GenericClusterController.onLiveInstanceChange()");
  }
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    if (idealStates == null) {
      idealStates = Collections.emptyList();
    }
    _cache.setIdealStates(idealStates);
    ClusterEvent event = new ClusterEvent("idealStateChange");
    event.addAttribute("helixmanager", changeContext.getManager());
    event.addAttribute("changeContext", changeContext);
    event.addAttribute("eventData", idealStates);
    _eventQueue.put(event);

    if (changeContext.getType() != Type.FINALIZE) {
      checkRebalancingTimer(changeContext.getManager(), idealStates);
    }
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    if (configs == null) {
      configs = Collections.emptyList();
    }
    _cache.setInstanceConfigs(configs);

    ClusterEvent event = new ClusterEvent("configChange");
    event.addAttribute("changeContext", changeContext);
    event.addAttribute("helixmanager", changeContext.getManager());
    event.addAttribute("eventData", configs);
    _eventQueue.put(event);
    logger.info("END: GenericClusterController.onConfigChange()");
  }
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    } else {
      if (_paused) {
        // it currently paused
        logger.info("controller is now resumed");
        _paused = false;
        ClusterEvent event = new ClusterEvent("resume");
        event.addAttribute("changeContext", changeContext);
        event.addAttribute("helixmanager", changeContext.getManager());
        event.addAttribute("eventData", pauseSignal);
        _eventQueue.put(event);
      } else {
        _paused = false;
      }
    }
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    @Override
    public void run() {
      _cache.requireFullRefresh();
      NotificationContext changeContext = new NotificationContext(_manager);
      changeContext.setType(NotificationContext.Type.CALLBACK);
      ClusterEvent event = new ClusterEvent("periodicalRebalance");
      event.addAttribute("helixmanager", changeContext.getManager());
      event.addAttribute("changeContext", changeContext);
      List<ZNRecord> dummy = new ArrayList<ZNRecord>();
      event.addAttribute("eventData", dummy);
      // Should be able to process
      _eventQueue.put(event);
    }
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Related Classes of org.apache.helix.controller.stages.ClusterEvent

  • org.apache.helix.api.TestNewStages
  • org.apache.helix.controller.GenericHelixController
  • org.apache.helix.controller.GenericHelixController$ClusterEventProcessor
  • org.apache.helix.controller.GenericHelixController$RebalanceTask
  • org.apache.helix.controller.stages.BaseStageTest
  • org.apache.helix.controller.stages.TestMessageThrottleStage
  • org.apache.helix.controller.stages.TestRebalancePipeline
  • org.apache.helix.controller.stages.TestResourceComputationStage
  • org.apache.helix.controller.stages.TestStagesWithLogicalAccessors
  • org.apache.helix.healthcheck.HealthStatsAggregationTask
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