Package com.linkedin.helix.PropertyKey

Examples of com.linkedin.helix.PropertyKey.Builder.controllerLeader()

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    // stop current leader in controller cluster
    ZkBaseDataAccessor<ZNRecord> baseAccessor =
        new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(controllerClusterName, baseAccessor);
    Builder keyBuilder = accessor.keyBuilder();
    LiveInstance leader = accessor.getProperty(keyBuilder.controllerLeader());
    String leaderName = leader.getId();
    int j = Integer.parseInt(leaderName.substring(leaderName.lastIndexOf('_') + 1));
    controllers[j].syncStop();
   
   
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    if (accessor.getChildNames(keyBuilder.liveInstances()).size() > 0)
    {
      throw new HelixException("There are still live instances in the cluster, shut them down first.");
    }

    if (accessor.getProperty(keyBuilder.controllerLeader()) != null)
    {
      throw new HelixException("There are still LEADER in the cluster, shut them down first.");
    }

    _zkClient.deleteRecursive(root);
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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)
    {
      LOG.warn("No controller exists for cluster:"
          + changeContext.getManager().getClusterName());
      return;
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    if (accessor.getChildNames(keyBuilder.liveInstances()).size() > 0)
    {
      throw new HelixException("There are still live instances in the cluster, shut them down first.");
    }

    if (accessor.getProperty(keyBuilder.controllerLeader()) != null)
    {
      throw new HelixException("There are still LEADER in the cluster, shut them down first.");
    }

    _zkClient.deleteRecursive(root);
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      {
        // DataAccessor dataAccessor = manager.getDataAccessor();
        HelixDataAccessor accessor = manager.getHelixDataAccessor();
        Builder keyBuilder = accessor.keyBuilder();

        while (accessor.getProperty(keyBuilder.controllerLeader()) == null)
        {
          boolean success = tryUpdateController(manager);
          if (success)
          {
            updateHistory(manager);
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      }
      else
      {
        LOG.warn("ZKPropertyTransferServer instnace is null");
      }
      boolean success = accessor.createProperty(keyBuilder.controllerLeader(), leader);
      if (success)
      {
        return true;
      }
      else
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                    + manager.getClusterName()
                    + ". Need to check again whether leader node has been created or not",
                e);
    }

    leader = accessor.getProperty(keyBuilder.controllerLeader());
    if (leader != null)
    {
      String leaderName = leader.getInstanceName(); // leader.getLeader();
      LOG.info("Leader exists for cluster:" + manager.getClusterName()
          + ", currentLeader:" + leaderName);
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  {
    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
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    {
      return false;
    }

    Builder keyBuilder = _helixAccessor.keyBuilder();
    LiveInstance leader = _helixAccessor.getProperty(keyBuilder.controllerLeader());
    if (leader == null)
    {
      return false;
    }
    else
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