Examples of com.linkedin.helix.model.LiveInstance

com.linkedin.helix.model.LiveInstance
Instance that connects to zookeeper

  {
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(zkClient));
    Builder keyBuilder = accessor.keyBuilder();


    LiveInstance leader = accessor.getProperty(keyBuilder.controllerLeader());
    if (leader == null)
    {
      return null;
    }
    return leader.getInstanceName();
  }

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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");

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    {
      throw new HelixException("Instance is not configured for instance:" + _instanceName
          + " instanceType:" + _instanceType);
    }


    LiveInstance liveInstance = new LiveInstance(_instanceName);
    liveInstance.setSessionId(_sessionId);
//    _fileDataAccessor.setProperty(PropertyType.LIVEINSTANCES, liveInstance.getRecord(),
//        _instanceName);
    
    Builder keyBuilder = _accessor.keyBuilder();
    _accessor.setProperty(keyBuilder.liveInstance(_instanceName), liveInstance);

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    Builder keyBuilder = accessor.keyBuilder();


    for (int i = 0; i < liveInstances.length; i++)
    {
      String instance = "localhost_" + liveInstances[i];
      LiveInstance liveInstance = new LiveInstance(instance);
      liveInstance.setSessionId("session_" + liveInstances[i]);
      liveInstance.setHelixVersion("0.0.0");
      accessor.setProperty(keyBuilder.liveInstance(instance), liveInstance);
    }
  }

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  void refreshZkPropertyTransferUrl()
  {
    try
    {
      LiveInstance leader = getProperty(keyBuilder().controllerLeader());
      if (leader != null)
      {
        _zkPropertyTransferSvcUrl = leader.getWebserviceUrl();
        LOG.info("_zkPropertyTransferSvcUrl : " + _zkPropertyTransferSvcUrl
            + " Controller " + leader.getInstanceName());
      }
      else
      {
        _zkPropertyTransferSvcUrl = null;
      }

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    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_zkClient));
    Builder keyBuilder = accessor.keyBuilder();


    // ensure node is stopped
    LiveInstance liveInstance = accessor.getProperty(keyBuilder.liveInstance(instanceId));
    if (liveInstance != null)
    {
      throw new HelixException("Can't drop " + instanceId + ", please stop " + instanceId
          + " before drop it");
    }

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  protected void setupLiveInstances(int numLiveInstances)
  {
    // setup liveInstances
    for (int i = 0; i < numLiveInstances; i++)
    {
      LiveInstance liveInstance = new LiveInstance("localhost_" + i);
      liveInstance.setSessionId("session_" + i);
      
      Builder keyBuilder = accessor.keyBuilder();
      accessor.setProperty(keyBuilder.liveInstance("localhost_" + i), liveInstance);
    }
  }

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    record = new ZNRecord("localhost_0");
    if (participantVersion != null)
    {
      record.setSimpleField(LiveInstanceProperty.HELIX_VERSION.toString(), participantVersion);
    }
    LiveInstance liveInstance = new LiveInstance(record);
    liveInstance.setSessionId("session_0");
    accessor.setProperty(keyBuilder.liveInstance("localhost_0"), liveInstance);


    if (controllerVersion != null)
    {
      ((Mocks.MockManager)manager).setVersion(controllerVersion);

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        new EventType[] { EventType.NodeChildrenChanged, EventType.NodeDeleted, EventType.NodeCreated });
  }


  private void addLiveInstance()
  {
    LiveInstance liveInstance = new LiveInstance(_instanceName);
    liveInstance.setSessionId(_sessionId);
    liveInstance.setHelixVersion(_version);
    liveInstance.setLiveInstance(ManagementFactory.getRuntimeMXBean().getName());


    logger.info("Add live instance: InstanceName: " + _instanceName + " Session id:"
        + _sessionId);
    Builder keyBuilder = _helixAccessor.keyBuilder();
    if (!_helixAccessor.createProperty(keyBuilder.liveInstance(_instanceName),

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    {
      return false;
    }


    Builder keyBuilder = _helixAccessor.keyBuilder();
    LiveInstance leader = _helixAccessor.getProperty(keyBuilder.controllerLeader());
    if (leader == null)
    {
      return false;
    }
    else
    {
      String leaderName = leader.getInstanceName();
      // TODO need check sessionId also, but in distributed mode, leader's
      // sessionId is
      // not equal to
      // the leader znode's sessionId field which is the sessionId of the
      // controller_participant that

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Related Classes of com.linkedin.helix.model.LiveInstance

com.linkedin.helix.controller.GenericHelixController

com.linkedin.helix.controller.stages.BaseStageTest

com.linkedin.helix.controller.stages.ClusterDataCache

com.linkedin.helix.controller.stages.TestCompatibilityCheckStage

com.linkedin.helix.controller.stages.TestMsgSelectionStage

com.linkedin.helix.controller.stages.TestResourceComputationStage

com.linkedin.helix.integration.TestDistributedClusterController

com.linkedin.helix.integration.TestDistributedCMMain

com.linkedin.helix.integration.TestHelixCustomCodeRunner

com.linkedin.helix.integration.TestResetPartitionState

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