Package org.apache.helix.model

Examples of org.apache.helix.model.LiveInstance

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      String newSessionId = ZkTestHelper.getSessionId(client);
      Assert.assertEquals(newSessionId, oldSessionId);
    }
    client.unsubscribeStateChanges(listener);
    // make sure participant is NOT disconnected
    LiveInstance liveInstance = accessor.getProperty(keyBuilder.liveInstance(instanceName));
    Assert.assertNotNull(liveInstance, "Live-instance should exist after " + n + " disconnects");

    // trigger flapping
    ZkTestHelper.simulateZkStateDisconnected(client);
    // wait until we get invoked by zk state change to disconnected
    boolean success = TestHelper.verify(new Verifier() {

      @Override
      public boolean verify() throws Exception {
        return client.getShutdownTrigger();
      }
    }, 30 * 1000);

    Assert.assertTrue(success, "The " + (n + 1)
        + "th disconnect event should trigger ZkHelixManager#disonnect");

    // make sure participant is disconnected
    success = TestHelper.verify(new TestHelper.Verifier() {

      @Override
      public boolean verify() throws Exception {
        LiveInstance liveInstance = accessor.getProperty(keyBuilder.liveInstance(instanceName));
        return liveInstance == null;
      }
    }, 3 * 1000);
    Assert.assertTrue(success, "Live-instance should be gone after " + (n + 1) + " disconnects");

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      String newSessionId = ZkTestHelper.getSessionId(client);
      Assert.assertEquals(newSessionId, oldSessionId);
    }

    // make sure controller is NOT disconnected
    LiveInstance leader = accessor.getProperty(keyBuilder.controllerLeader());
    Assert.assertNotNull(leader, "Leader should exist after " + n + " disconnects");

    // trigger flapping
    ZkTestHelper.simulateZkStateDisconnected(client);
    // wait until we get invoked by zk state change to disconnected
    boolean success = TestHelper.verify(new Verifier() {

      @Override
      public boolean verify() throws Exception {
        return client.getShutdownTrigger();
      }
    }, 30 * 1000);

    Assert.assertTrue(success, "The " + (n + 1)
        + "th disconnect event should trigger ZkHelixManager#disonnect");

    // make sure controller is disconnected
    success = TestHelper.verify(new TestHelper.Verifier() {

      @Override
      public boolean verify() throws Exception {
        LiveInstance leader = accessor.getProperty(keyBuilder.controllerLeader());
        return leader == null;
      }
    }, 5 * 1000);
    Assert.assertTrue(success, "Leader should be gone after " + (n + 1) + " disconnects");

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    List<String> instances =
        setupTool.getClusterManagementTool().getInstancesInCluster(clusterName);

    HelixDataAccessor accessor =
        ClusterRepresentationUtil.getClusterDataAccessor(zkClient, clusterName);
    LiveInstance liveInstance =
        accessor.getProperty(accessor.keyBuilder().liveInstance(instanceName));
    String sessionId = liveInstance.getSessionId();

    StringRepresentation representation = new StringRepresentation("");// (ClusterRepresentationUtil.ObjectToJson(instanceConfigs),
                                                                       // MediaType.APPLICATION_JSON);

    return representation;
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      if (criteriaString == null) {
        throw new HelixException("SchedulerTasksResource need to have Criteria specified.");
      }
      HelixDataAccessor accessor =
          ClusterRepresentationUtil.getClusterDataAccessor(zkClient, clusterName);
      LiveInstance leader = accessor.getProperty(accessor.keyBuilder().controllerLeader());
      if (leader == null) {
        throw new HelixException("There is no leader for the cluster " + clusterName);
      }

      Message schedulerMessage =
          new Message(MessageType.SCHEDULER_MSG, UUID.randomUUID().toString());
      schedulerMessage.getRecord().getSimpleFields().put(CRITERIA, criteriaString);

      schedulerMessage.getRecord().getMapFields().put(MESSAGETEMPLATE, messageTemplate);

      schedulerMessage.setTgtSessionId(leader.getSessionId());
      schedulerMessage.setTgtName("CONTROLLER");
      schedulerMessage.setSrcInstanceType(InstanceType.CONTROLLER);
      String taskQueueName =
          ClusterRepresentationUtil.getFormJsonParameterString(form, TASKQUEUENAME);
      if (taskQueueName != null && taskQueueName.length() > 0) {
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    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    PropertyKey.Builder keyBuilder = accessor.keyBuilder();

    // System.out.println("remove current-state");
    LiveInstance liveInstance = accessor.getProperty(keyBuilder.liveInstance("localhost_12918"));
    accessor.removeProperty(keyBuilder.currentState("localhost_12918", liveInstance.getSessionId(),
        "TestDB0"));
    liveInstance = accessor.getProperty(keyBuilder.liveInstance("localhost_12919"));
    accessor.removeProperty(keyBuilder.currentState("localhost_12919", liveInstance.getSessionId(),
        "TestDB0"));

    // re-enable controller shall remove orphan external-view
    // System.out.println("re-enabling controller");
    admin.enableCluster(clusterName, true);
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    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(zkClient));

    ZNRecord record = null;
    LiveInstance leader = accessor.getProperty(keyBuilder.controllerLeader());
    if (leader != null) {
      record = leader.getRecord();
    } else {
      record = new ZNRecord("");
      DateFormat formatter = new SimpleDateFormat("yyyyMMdd-HHmmss.SSSSSS");
      String time = formatter.format(new Date());
      Map<String, String> contentMap = new TreeMap<String, String>();
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    }
    HelixDataAccessor accessor = changeContext.getManager().getHelixDataAccessor();

    // double check if this controller is the leader
    Builder keyBuilder = accessor.keyBuilder();
    LiveInstance leader = accessor.getProperty(keyBuilder.controllerLeader());
    if (leader == null) {
      logger
          .warn("No controller exists for cluster:" + changeContext.getManager().getClusterName());
      return;
    } else {
      String leaderName = leader.getInstanceName();

      String instanceName = changeContext.getManager().getInstanceName();
      if (leaderName == null || !leaderName.equals(instanceName)) {
        logger.warn("leader name does NOT match, my name: " + instanceName + ", leader: " + leader);
        return;
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    HelixDataAccessor accessor =
        ClusterRepresentationUtil.getClusterDataAccessor(zkClient, clusterName);
    Builder keyBuilder = accessor.keyBuilder();

    LiveInstance leader = accessor.getProperty(keyBuilder.controllerLeader());
    if (leader != null) {
      clusterSummayRecord.setSimpleField("LEADER", leader.getInstanceName());
    } else {
      clusterSummayRecord.setSimpleField("LEADER", "");
    }
    StringRepresentation representation =
        new StringRepresentation(ClusterRepresentationUtil.ZNRecordToJson(clusterSummayRecord),
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    List<PropertyKey> currentStateKeys = Lists.newLinkedList();
    Map<String, Map<String, Map<String, CurrentState>>> allCurStateMap =
        new HashMap<String, Map<String, Map<String, CurrentState>>>();
    for (String instanceName : _liveInstanceMap.keySet()) {
      LiveInstance liveInstance = _liveInstanceMap.get(instanceName);
      String sessionId = liveInstance.getSessionId();
      List<String> currentStateNames =
          accessor.getChildNames(keyBuilder.currentStates(instanceName, sessionId));
      for (String currentStateName : currentStateNames) {
        currentStateKeys.add(keyBuilder.currentState(instanceName, sessionId, currentStateName));
      }
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      Message message = iter.next();
      String resourceName = message.getResourceName();
      Resource resource = resourceMap.get(resourceName);

      String instanceName = message.getTgtName();
      LiveInstance liveInstance = liveInstanceMap.get(instanceName);
      String participantVersion = null;
      if (liveInstance != null) {
        participantVersion = liveInstance.getHelixVersion();
      }

      if (resource == null || !resource.getBatchMessageMode() || participantVersion == null
          || !properties.isFeatureSupported("batch_message", participantVersion)) {
        outputMessages.add(message);
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Related Classes of org.apache.helix.model.LiveInstance

  • org.apache.helix.api.accessor.ClusterAccessor
  • org.apache.helix.api.accessor.ControllerAccessor
  • org.apache.helix.api.accessor.ParticipantAccessor
  • org.apache.helix.controller.GenericHelixController
  • org.apache.helix.controller.stages.BaseStageTest
  • org.apache.helix.controller.stages.ClusterDataCache
  • org.apache.helix.controller.stages.TaskAssignmentStage
  • org.apache.helix.controller.stages.TestCompatibilityCheckStage
  • org.apache.helix.controller.stages.TestMsgSelectionStage
  • org.apache.helix.controller.stages.TestResourceComputationStage
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