Package com.linkedin.helix.manager.zk

Examples of com.linkedin.helix.manager.zk.ZKHelixDataAccessor

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                            2, // replicas
                            "MasterSlave",
                            true); // do rebalance
   
    // enable group message
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();
    IdealState idealState = accessor.getProperty(keyBuilder.idealStates("TestDB0"));
    idealState.setGroupMessageMode(true);
    accessor.setProperty(keyBuilder.idealStates("TestDB0"), idealState);

    // registry a message listener so we know how many message generated
    TestZkChildListener listener = new TestZkChildListener();
    _gZkClient.subscribeChildChanges(keyBuilder.messages("localhost_12918").getPath(), listener);
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    {
      participants[i].syncStop();
    }
   
    // enable group message
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();
    IdealState idealState = accessor.getProperty(keyBuilder.idealStates("TestDB0"));
    idealState.setGroupMessageMode(true);
    accessor.setProperty(keyBuilder.idealStates("TestDB0"), idealState);

    // registry a message listener so we know how many message generated
    TestZkChildListener listener = new TestZkChildListener();
    _gZkClient.subscribeChildChanges(keyBuilder.messages("localhost_12918").getPath(), listener);
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                                    String op)
  {
    boolean result = true;
    ZkBaseDataAccessor<ZNRecord> baseAccessor =
        new ZkBaseDataAccessor<ZNRecord>(zkclient);
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, baseAccessor);
    Builder keyBuilder = accessor.keyBuilder();

    ExternalView extView = accessor.getProperty(keyBuilder.externalView(resourceName));
    Map<String, Map<String, String>> actualStateMap = extView.getRecord().getMapFields();
    for (String partition : actualStateMap.keySet())
    {
      for (String expectPartiton : expectStateMap.keySet())
      {
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  private void clearStatusUpdate(String clusterName, String instance, String resource,
      String partition)
  {
    // clear status update for error partition so verify() will not fail on old
    // errors
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();

    LiveInstance liveInstance = accessor.getProperty(keyBuilder.liveInstance(instance));
    accessor.removeProperty(keyBuilder.stateTransitionStatus(instance, liveInstance.getSessionId(), resource, partition));

   }
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  {
    ZkClient zkClient = new ZkClient("localhost:2181");
    zkClient.waitUntilConnected(10, TimeUnit.SECONDS);
    BaseDataAccessor baseDataAccessor = new ZkBaseDataAccessor(zkClient);
    HelixDataAccessor accessor =
        new ZKHelixDataAccessor("test-cluster", baseDataAccessor);
    Builder builder = new PropertyKey.Builder("test-cluster");
    HelixProperty value = new IdealState("test-resource");
    accessor.createProperty(builder.idealStates("test-resource"), value);
  }
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                                                  PropertyKey propertyKey) throws JsonGenerationException,
      JsonMappingException,
      IOException
  {

    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(zkClient));

    HelixProperty property = accessor.getProperty(propertyKey);
    ZNRecord record = property == null ? null : property.getRecord();
    return ZNRecordToJson(record);
  }
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                                                   PropertyKey propertyKey,
                                                   MediaType mediaType) throws JsonGenerationException,
      JsonMappingException,
      IOException
  {
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(zkClient));

    ZNRecord records = accessor.getProperty(propertyKey).getRecord();
    return ZNRecordToJson(records);
  }
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    ZkClient zkClient = new ZkClient(zkAddr);
    zkClient.setZkSerializer(new ZNRecordSerializer());

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

      for (String instanceName : instanceNames)
      {
        List<String> sessionIds =
            accessor.getChildNames(keyBuilder.sessions(instanceName));

        for (String sessionId : sessionIds)
        {
          CurrentState curState =
              accessor.getProperty(keyBuilder.currentState(instanceName,
                                                           sessionId,
                                                           resourceName));

          if (curState != null && curState.getRecord().getMapFields().size() != 0)
          {
            return false;
          }
        }

        ExternalView extView =
            accessor.getProperty(keyBuilder.externalView(resourceName));

        if (extView != null && extView.getRecord().getMapFields().size() != 0)
        {
          return false;
        }
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                                                     MediaType mediaType) throws JsonGenerationException,
      JsonMappingException,
      IOException
  {
    zkClient.setZkSerializer(new ZNRecordSerializer());
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(zkClient));

    List<ZNRecord> records =
        HelixProperty.convertToList(accessor.getChildValues(propertyKey));
    return ObjectToJson(records);
  }
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                                           PropertyKey propertyKey,
                                           MediaType mediaType) throws JsonGenerationException,
      JsonMappingException,
      IOException
  {
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(zkClient));

    ZNRecord record = EMPTY_ZNRECORD;
    HelixProperty property = accessor.getProperty(propertyKey);
    if (property != null)
    {
      record = property.getRecord();
    }
    return ObjectToJson(record);
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Related Classes of com.linkedin.helix.manager.zk.ZKHelixDataAccessor

  • com.linkedin.helix.controller.restlet.ZkPropertyTransferClient
  • com.linkedin.helix.controller.restlet.ZNRecordUpdate
  • com.linkedin.helix.controller.stages.TestMessageThrottleStage
  • com.linkedin.helix.controller.stages.TestRebalancePipeline
  • com.linkedin.helix.healthcheck.TestAddDropAlert
  • com.linkedin.helix.healthcheck.TestDummyAlerts
  • com.linkedin.helix.healthcheck.TestExpandAlert
  • com.linkedin.helix.healthcheck.TestSimpleAlert
  • com.linkedin.helix.healthcheck.TestSimpleWildcardAlert
  • com.linkedin.helix.healthcheck.TestStalenessAlert
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