Package org.apache.helix.manager.zk

Examples of org.apache.helix.manager.zk.DistributedLeaderElection

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    HelixManager manager =
        new MockZKHelixManager(clusterName, controllerName, InstanceType.CONTROLLER, _gZkClient);
    GenericHelixController controller0 = new GenericHelixController();

    List<HelixTimerTask> timerTasks = Collections.emptyList();
    DistributedLeaderElection election =
        new DistributedLeaderElection(manager, controller0, timerTasks);
    NotificationContext context = new NotificationContext(manager);
    context.setType(NotificationContext.Type.INIT);
    election.onControllerChange(context);

    // path = PropertyPathConfig.getPath(PropertyType.LEADER, clusterName);
    // ZNRecord leaderRecord = _gZkClient.<ZNRecord> readData(path);
    LiveInstance liveInstance = accessor.getProperty(keyBuilder.controllerLeader());
    AssertJUnit.assertEquals(controllerName, liveInstance.getInstanceName());
    // AssertJUnit.assertNotNull(election.getController());
    // AssertJUnit.assertNull(election.getLeader());

    manager =
        new MockZKHelixManager(clusterName, "controller_1", InstanceType.CONTROLLER, _gZkClient);
    GenericHelixController controller1 = new GenericHelixController();
    election = new DistributedLeaderElection(manager, controller1, timerTasks);
    context = new NotificationContext(manager);
    context.setType(NotificationContext.Type.INIT);
    election.onControllerChange(context);
    // leaderRecord = _gZkClient.<ZNRecord> readData(path);
    liveInstance = accessor.getProperty(keyBuilder.controllerLeader());
    AssertJUnit.assertEquals(controllerName, liveInstance.getInstanceName());
    // AssertJUnit.assertNull(election.getController());
    // AssertJUnit.assertNull(election.getLeader());
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        new MockZKHelixManager(clusterName, controllerName, InstanceType.CONTROLLER_PARTICIPANT,
            _gZkClient);
    GenericHelixController controller0 = new GenericHelixController();
    List<HelixTimerTask> timerTasks = Collections.emptyList();

    DistributedLeaderElection election =
        new DistributedLeaderElection(manager, controller0, timerTasks);
    NotificationContext context = new NotificationContext(manager);
    context.setType(NotificationContext.Type.CALLBACK);
    election.onControllerChange(context);

    LiveInstance liveInstance = accessor.getProperty(keyBuilder.controllerLeader());
    AssertJUnit.assertEquals(controllerName, liveInstance.getInstanceName());

    // path = PropertyPathConfig.getPath(PropertyType.LEADER, clusterName);
    // ZNRecord leaderRecord = _gZkClient.<ZNRecord> readData(path);
    // AssertJUnit.assertEquals(controllerName, leaderRecord.getSimpleField("LEADER"));
    // AssertJUnit.assertNotNull(election.getController());
    // AssertJUnit.assertNotNull(election.getLeader());

    manager =
        new MockZKHelixManager(clusterName, "controller_1", InstanceType.CONTROLLER_PARTICIPANT,
            _gZkClient);
    GenericHelixController controller1 = new GenericHelixController();
    election = new DistributedLeaderElection(manager, controller1, timerTasks);
    context = new NotificationContext(manager);
    context.setType(NotificationContext.Type.CALLBACK);
    election.onControllerChange(context);

    liveInstance = accessor.getProperty(keyBuilder.controllerLeader());
    AssertJUnit.assertEquals(controllerName, liveInstance.getInstanceName());

    // leaderRecord = _gZkClient.<ZNRecord> readData(path);
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    HelixManager manager =
        new MockZKHelixManager(clusterName, controllerName, InstanceType.PARTICIPANT, _gZkClient);
    GenericHelixController participant0 = new GenericHelixController();
    List<HelixTimerTask> timerTasks = Collections.emptyList();

    DistributedLeaderElection election =
        new DistributedLeaderElection(manager, participant0, timerTasks);
    NotificationContext context = new NotificationContext(manager);
    context.setType(NotificationContext.Type.INIT);
    election.onControllerChange(context);

    path = PropertyPathConfig.getPath(PropertyType.LEADER, clusterName);
    ZNRecord leaderRecord = _gZkClient.<ZNRecord> readData(path, true);
    AssertJUnit.assertNull(leaderRecord);
    // AssertJUnit.assertNull(election.getController());
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Related Classes of org.apache.helix.manager.zk.DistributedLeaderElection

  • org.apache.helix.HelixDataAccessor
  • org.apache.helix.HelixManager
  • org.apache.helix.InstanceType
  • org.apache.helix.model.LeaderHistory
  • org.apache.helix.model.LiveInstance
  • org.apache.helix.participant.TestDistControllerElection
  • org.apache.helix.PropertyKey.Builder
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