Examples of org.apache.helix.model.InstanceConfig

org.apache.helix.model.InstanceConfig
Instance configurations

    }


    // read all the participants
    Map<ParticipantId, Participant> participantMap = Maps.newHashMap();
    for (String participantName : instanceConfigMap.keySet()) {
      InstanceConfig instanceConfig = instanceConfigMap.get(participantName);
      UserConfig userConfig = instanceConfig.getUserConfig();
      LiveInstance liveInstance = liveInstanceMap.get(participantName);
      Map<String, Message> instanceMsgMap = messageMap.get(participantName);


      ParticipantId participantId = ParticipantId.from(participantName);

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      LOG.error("Cluster: " + _clusterId + " structure is not valid");
      return false;
    }


    ParticipantId participantId = participant.getId();
    InstanceConfig existConfig =
        _accessor.getProperty(_keyBuilder.instanceConfig(participantId.stringify()));
    if (existConfig != null && isParticipantStructureValid(participantId)) {
      LOG.error("Config for participant: " + participantId + " already exists in cluster: "
          + _clusterId);
      return false;

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   * @return participant, or null if participant not available
   */
  public Participant readParticipant(ParticipantId participantId) {
    // read physical model
    String participantName = participantId.stringify();
    InstanceConfig instanceConfig =
        _accessor.getProperty(_keyBuilder.instanceConfig(participantName));


    if (instanceConfig == null) {
      LOG.error("Participant " + participantId + " is not present on the cluster");
      return null;
    }


    UserConfig userConfig = instanceConfig.getUserConfig();
    LiveInstance liveInstance = _accessor.getProperty(_keyBuilder.liveInstance(participantName));


    Map<String, Message> instanceMsgMap = Collections.emptyMap();
    Map<String, CurrentState> instanceCurStateMap = Collections.emptyMap();
    if (liveInstance != null) {

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    IdealState dbIs = accessor.getProperty(accessor.keyBuilder().idealStates("db_11"));
    Set<ParticipantId> hosts = new HashSet<ParticipantId>();
    for (PartitionId p : dbIs.getPartitionIdSet()) {
      for (ParticipantId participantId : dbIs.getParticipantStateMap(p).keySet()) {
        InstanceConfig config =
            accessor.getProperty(accessor.keyBuilder().instanceConfig(participantId.stringify()));
        Assert.assertTrue(config.containsTag("tag1"));
        hosts.add(participantId);
      }
    }
    Assert.assertEquals(hosts.size(), 2);


    command = "-zkSvr " + _zkaddr + " -dropResource " + clusterName + " db_11 ";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));


    // re-add and rebalance
    command = "-zkSvr " + _zkaddr + " -addResource " + clusterName + " db_11 48 MasterSlave";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));


    command =
        "-zkSvr " + _zkaddr + " -rebalance " + clusterName + " db_11 3 -instanceGroupTag tag2";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));


    dbIs = accessor.getProperty(accessor.keyBuilder().idealStates("db_11"));
    hosts = new HashSet<ParticipantId>();
    for (PartitionId p : dbIs.getPartitionIdSet()) {
      for (ParticipantId participantId : dbIs.getParticipantStateMap(p).keySet()) {
        InstanceConfig config =
            accessor.getProperty(accessor.keyBuilder().instanceConfig(participantId.stringify()));
        Assert.assertTrue(config.containsTag("tag2"));
        hosts.add(participantId);
      }
    }
    Assert.assertEquals(hosts.size(), 4);


    command = "-zkSvr " + _zkaddr + " -dropResource " + clusterName + " db_11 ";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));


    for (int i = 3; i <= 3; i++) {
      command =
          "-zkSvr " + _zkaddr + " -removeInstanceTag " + clusterName + " localhost_123" + i
              + " tag2";
      ClusterSetup.processCommandLineArgs(command.split("\\s+"));
    }


    // re-add and rebalance
    command = "-zkSvr " + _zkaddr + " -addResource " + clusterName + " db_11 48 MasterSlave";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));


    command =
        "-zkSvr " + _zkaddr + " -rebalance " + clusterName + " db_11 3 -instanceGroupTag tag2";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));
    dbIs = accessor.getProperty(accessor.keyBuilder().idealStates("db_11"));
    hosts = new HashSet<ParticipantId>();
    for (PartitionId p : dbIs.getPartitionIdSet()) {
      for (ParticipantId participantId : dbIs.getParticipantStateMap(p).keySet()) {
        InstanceConfig config =
            accessor.getProperty(accessor.keyBuilder().instanceConfig(participantId.stringify()));
        Assert.assertTrue(config.containsTag("tag2"));
        hosts.add(participantId);
      }
    }
    Assert.assertEquals(hosts.size(), 3);

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            clusterName, errStateMap));
    Assert.assertTrue(result);


    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, _baseAccessor);
    PropertyKey.Builder keyBuilder = accessor.keyBuilder();
    InstanceConfig config = accessor.getProperty(keyBuilder.instanceConfig("localhost_12918"));
    List<String> disabledPartitions = config.getDisabledPartitions();
    // System.out.println("disabledPartitions: " + disabledPartitions);
    Assert.assertEquals(disabledPartitions.size(), 1, "TestDB0_4 should be disabled");
    Assert.assertEquals(disabledPartitions.get(0), "TestDB0_4");


    // ExteranlView should have TestDB0_4->localhost_12918_>ERROR

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      }
    }
    if (host != null && port > 0) {
      instanceId = host + "_" + port;
    }
    InstanceConfig config = new InstanceConfig(instanceId);
    if (host != null && port > 0) {
      config.setHostName(host);
      config.setPort(String.valueOf(port));


    }


    config.setInstanceEnabled(true);
    if (config.getHostName() == null) {
      config.setHostName(instanceId);
    }
    return config;
  }

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    }
    return config;
  }


  public void addInstanceToCluster(String clusterName, String instanceId) {
    InstanceConfig config = toInstanceConfig(instanceId);
    _admin.addInstance(clusterName, config);
  }

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  public void dropInstanceFromCluster(String clusterName, String instanceId) {
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_zkClient));
    Builder keyBuilder = accessor.keyBuilder();


    InstanceConfig instanceConfig = toInstanceConfig(instanceId);
    instanceId = instanceConfig.getInstanceName();


    // 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");
    }


    InstanceConfig config = accessor.getProperty(keyBuilder.instanceConfig(instanceId));
    if (config == null) {
      String error = "Node " + instanceId + " does not exist, cannot drop";
      _logger.warn(error);
      throw new HelixException(error);
    }


    // ensure node is disabled, otherwise fail
    if (config.getInstanceEnabled()) {
      String error = "Node " + instanceId + " is enabled, cannot drop";
      _logger.warn(error);
      throw new HelixException(error);
    }
    _admin.dropInstance(clusterName, config);

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  public void swapInstance(String clusterName, String oldInstanceName, String newInstanceName) {
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_zkClient));
    Builder keyBuilder = accessor.keyBuilder();


    InstanceConfig oldConfig = accessor.getProperty(keyBuilder.instanceConfig(oldInstanceName));
    if (oldConfig == null) {
      String error = "Old instance " + oldInstanceName + " does not exist, cannot swap";
      _logger.warn(error);
      throw new HelixException(error);
    }


    InstanceConfig newConfig = accessor.getProperty(keyBuilder.instanceConfig(newInstanceName));
    if (newConfig == null) {
      String error = "New instance " + newInstanceName + " does not exist, cannot swap";
      _logger.warn(error);
      throw new HelixException(error);
    }

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      }
      return 0;
    } else if (cmd.hasOption(listInstanceInfo)) {
      String clusterName = cmd.getOptionValues(listInstanceInfo)[0];
      String instanceName = cmd.getOptionValues(listInstanceInfo)[1];
      InstanceConfig config =
          setupTool.getClusterManagementTool().getInstanceConfig(clusterName, instanceName);


      String result = new String(new ZNRecordSerializer().serialize(config.getRecord()));
      System.out.println("InstanceConfig: " + result);
      return 0;
    } else if (cmd.hasOption(listResourceInfo)) {
      // print out partition number, resource name and replication number
      // Also the ideal states and current states

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Related Classes of org.apache.helix.model.InstanceConfig

com.linkedin.databus.cluster.DatabusCluster

org.apache.helix.api.accessor.ClusterAccessor

org.apache.helix.api.accessor.ParticipantAccessor

org.apache.helix.api.config.ParticipantConfig$Builder

org.apache.helix.api.config.ParticipantConfig$Delta

org.apache.helix.api.config.UserConfig

org.apache.helix.api.TestNamespacedConfig

org.apache.helix.controller.stages.BaseStageTest

org.apache.helix.controller.stages.ClusterDataCache

org.apache.helix.controller.stages.ContainerProvisioningStage

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