Package org.apache.helix.manager.zk

Examples of org.apache.helix.manager.zk.ZKHelixManager$StatusDumpTask

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      this.instanceName = instanceName;
    }

    public void start() throws Exception {
      helixManager =
          new ZKHelixManager(clusterName, instanceName, InstanceType.PARTICIPANT, ZK_ADDR);
      {
        // hack to set sessionTimeout
        Field sessionTimeout = ZKHelixManager.class.getDeclaredField("_sessionTimeout");
        sessionTimeout.setAccessible(true);
        sessionTimeout.setInt(helixManager, 1000);
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    HelixManager[] distributedControllers = new HelixManager[n];
    for (int i = 0; i < n; i++) {
      int port = 12918 + i;
      distributedControllers[i] =
          new ZKHelixManager(clusterName, "localhost_" + port, InstanceType.CONTROLLER_PARTICIPANT,
              ZK_ADDR);
      distributedControllers[i].getStateMachineEngine().registerStateModelFactory("MasterSlave",
          new MockMSModelFactory());
      distributedControllers[i].connect();
    }
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    }
  }

  private HelixManager createParticipant(String clusterName, String instanceName) {
    HelixManager participant =
        new ZKHelixManager(clusterName, instanceName, InstanceType.PARTICIPANT, ZK_ADDR);
    participant.getStateMachineEngine().registerStateModelFactory("OnlineOffline",
        new MockStateModelFactory());
    return participant;
  }
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        n, // number of nodes
        1, // replicas
        "MasterSlave", true); // do rebalance

    HelixManager participant =
        new ZKHelixManager(clusterName, "localhost_12918", InstanceType.PARTICIPANT, ZK_ADDR);
    participant.getStateMachineEngine().registerStateModelFactory("MasterSlave",
        new MockMSModelFactory());
    participant.connect();

    HelixManager controller =
        new ZKHelixManager(clusterName, "controller_0", InstanceType.CONTROLLER, ZK_ADDR);
    controller.connect();

    boolean result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);

    // cleanup
    controller.disconnect();
    participant.disconnect();

    // verify all live-instances and leader nodes are gone
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
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    }
  }

  private HelixManager createParticipant(String clusterName, String instanceName) {
    HelixManager participant =
        new ZKHelixManager(clusterName, instanceName, InstanceType.PARTICIPANT, _zkaddr);
    participant.getStateMachineEngine().registerStateModelFactory(
        StateModelDefId.from("OnlineOffline"), new TestHelixConnection.MockStateModelFactory());
    return participant;
  }
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        n, // number of nodes
        1, // replicas
        "MasterSlave", true); // do rebalance

    HelixManager participant =
        new ZKHelixManager(clusterName, "localhost_12918", InstanceType.PARTICIPANT, _zkaddr);
    participant.getStateMachineEngine().registerStateModelFactory(StateModelDefId.MasterSlave,
        new MockMSModelFactory());
    participant.connect();

    HelixManager controller =
        new ZKHelixManager(clusterName, "controller_0", InstanceType.CONTROLLER, _zkaddr);
    controller.connect();

    boolean result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(_zkaddr,
            clusterName));
    Assert.assertTrue(result);

    // cleanup
    controller.disconnect();
    participant.disconnect();

    // verify all live-instances and leader nodes are gone
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, _baseAccessor);
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    HelixManager[] multiClusterControllers = new HelixManager[n];
    for (int i = 0; i < n; i++) {
      int port = 12918 + i;
      multiClusterControllers[i] =
          new ZKHelixManager(clusterName, "localhost_" + port, InstanceType.CONTROLLER_PARTICIPANT,
              _zkaddr);
      multiClusterControllers[i].getStateMachineEngine().registerStateModelFactory(StateModelDefId.MasterSlave,
          new MockMSModelFactory());
      multiClusterControllers[i].connect();
    }
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    Thread.sleep(1000);

    // Now verify that exactly one is leader
    int leaderCount = 0;
    for (HelixController controller : controllers) {
      HelixManager adaptor = new ZKHelixManager(controller);
      boolean result = ZkHelixLeaderElection.tryUpdateController(adaptor);
      if (result) {
        leaderCount++;
      }
    }
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    // Repeatedly print status
    final HelixConnection connection = launcher.pollForConnection();
    final ClusterId clusterId = ClusterId.from(appSpec.getAppName());
    // TODO: this is a hack -- TaskDriver should accept a connection instead of a manager
    HelixManager manager = new ZKHelixManager(new HelixRole() {
      @Override
      public HelixConnection getConnection() {
        return connection;
      }
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  @Override
  protected void init(ServiceConfig serviceConfig) {
    LOG.info("Initialized service with config " + serviceConfig);

    // Register for callbacks for tasks
    HelixManager manager = new ZKHelixManager(getParticipant());
    Map<String, TaskFactory> taskFactoryReg = new HashMap<String, TaskFactory>();
    taskFactoryReg.put("RunTask", new TaskFactory() {
      @Override
      public Task createNewTask(TaskCallbackContext context) {
        return new MyTask(context);
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Related Classes of org.apache.helix.manager.zk.ZKHelixManager$StatusDumpTask

  • org.apache.helix.agent.HelixAgentMain
  • org.apache.helix.api.id.ClusterId
  • org.apache.helix.ConfigAccessor
  • org.apache.helix.healthcheck.HealthStatsAggregationTask
  • org.apache.helix.healthcheck.HealthStatsAggregator
  • org.apache.helix.healthcheck.ParticipantHealthReportCollectorImpl
  • org.apache.helix.healthcheck.ParticipantHealthReportTask
  • org.apache.helix.HelixConnection
  • org.apache.helix.HelixController
  • org.apache.helix.HelixManagerFactory
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