Package org.apache.helix.manager.zk

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

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    // kill controller, participant should not know about the svc url
    for (int i = 0; i < NODE_NR; i++) {
      HelixDataAccessor accessor =
          _participants[i].getHelixDataAccessor();
      ZKHelixDataAccessor zkAccessor = (ZKHelixDataAccessor) accessor;
      Assert.assertTrue(zkAccessor._zkPropertyTransferSvcUrl == null
          || zkAccessor._zkPropertyTransferSvcUrl.equals(""));
    }

    _controller = new ClusterControllerManager(ZK_ADDR, CLUSTER_NAME, controllerName);
    _controller.syncStart();

    Thread.sleep(1000);

    // create controller again, the svc url is notified to the participants
    for (int i = 0; i < NODE_NR; i++) {
      HelixDataAccessor accessor =
          _participants[i].getHelixDataAccessor();
      ZKHelixDataAccessor zkAccessor = (ZKHelixDataAccessor) accessor;
      Assert.assertTrue(zkAccessor._zkPropertyTransferSvcUrl.equals(ZKPropertyTransferServer
          .getInstance().getWebserviceUrl()));
    }
  }
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    admin.addCluster(className, true);
    InstanceConfig instanceConfig = new InstanceConfig("localhost_12918");
    admin.addInstance(className, instanceConfig);

    // oversized data should not create any new data on zk
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(className, new ZkBaseDataAccessor(zkClient));
    Builder keyBuilder = accessor.keyBuilder();

    IdealState idealState = new IdealState("currentState");
    idealState.setStateModelDefRef("MasterSlave");
    idealState.setRebalanceMode(RebalanceMode.SEMI_AUTO);
    idealState.setNumPartitions(10);

    for (int i = 0; i < 1024; i++) {
      idealState.getRecord().setSimpleField(i + "", bufStr);
    }
    boolean succeed = accessor.setProperty(keyBuilder.idealStates("TestDB0"), idealState);
    Assert.assertFalse(succeed);
    HelixProperty property =
        accessor.getProperty(keyBuilder.stateTransitionStatus("localhost_12918", "session_1",
            "partition_1"));
    Assert.assertNull(property);

    // legal sized data gets written to zk
    idealState.getRecord().getSimpleFields().clear();
    idealState.setStateModelDefRef("MasterSlave");
    idealState.setRebalanceMode(RebalanceMode.SEMI_AUTO);
    idealState.setNumPartitions(10);

    for (int i = 0; i < 900; i++) {
      idealState.getRecord().setSimpleField(i + "", bufStr);
    }
    succeed = accessor.setProperty(keyBuilder.idealStates("TestDB1"), idealState);
    Assert.assertTrue(succeed);
    record = accessor.getProperty(keyBuilder.idealStates("TestDB1")).getRecord();
    Assert.assertTrue(serializer.serialize(record).length > 900 * 1024);

    // oversized data should not update existing data on zk
    idealState.getRecord().getSimpleFields().clear();
    idealState.setStateModelDefRef("MasterSlave");
    idealState.setRebalanceMode(RebalanceMode.SEMI_AUTO);
    idealState.setNumPartitions(10);
    for (int i = 900; i < 1024; i++) {
      idealState.getRecord().setSimpleField(i + "", bufStr);
    }
    // System.out.println("record: " + idealState.getRecord());
    succeed = accessor.updateProperty(keyBuilder.idealStates("TestDB1"), idealState);
    Assert.assertFalse(succeed);
    recordNew = accessor.getProperty(keyBuilder.idealStates("TestDB1")).getRecord();
    arr = serializer.serialize(record);
    arrNew = serializer.serialize(recordNew);
    Assert.assertTrue(Arrays.equals(arr, arrNew));

    System.out.println("END testZNRecordSizeLimitUseZNRecordSerializer at "
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    admin.addCluster(className, true);
    InstanceConfig instanceConfig = new InstanceConfig("localhost_12918");
    admin.addInstance(className, instanceConfig);

    // oversized data should not create any new data on zk
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(className, new ZkBaseDataAccessor(zkClient));
    Builder keyBuilder = accessor.keyBuilder();

    // ZNRecord statusUpdates = new ZNRecord("statusUpdates");
    IdealState idealState = new IdealState("currentState");
    idealState.setStateModelDefRef("MasterSlave");
    idealState.setRebalanceMode(RebalanceMode.SEMI_AUTO);
    idealState.setNumPartitions(10);

    for (int i = 0; i < 1024; i++) {
      idealState.getRecord().setSimpleField(i + "", bufStr);
    }
    boolean succeed = accessor.setProperty(keyBuilder.idealStates("TestDB_1"), idealState);
    Assert.assertFalse(succeed);
    HelixProperty property = accessor.getProperty(keyBuilder.idealStates("TestDB_1"));
    Assert.assertNull(property);

    // legal sized data gets written to zk
    idealState.getRecord().getSimpleFields().clear();
    idealState.setStateModelDefRef("MasterSlave");
    idealState.setRebalanceMode(RebalanceMode.SEMI_AUTO);
    idealState.setNumPartitions(10);

    for (int i = 0; i < 900; i++) {
      idealState.getRecord().setSimpleField(i + "", bufStr);
    }
    succeed = accessor.setProperty(keyBuilder.idealStates("TestDB_2"), idealState);
    Assert.assertTrue(succeed);
    record = accessor.getProperty(keyBuilder.idealStates("TestDB_2")).getRecord();
    Assert.assertTrue(serializer.serialize(record).length > 900 * 1024);

    // oversized data should not update existing data on zk
    idealState.getRecord().getSimpleFields().clear();
    idealState.setStateModelDefRef("MasterSlave");
    idealState.setRebalanceMode(RebalanceMode.SEMI_AUTO);
    idealState.setNumPartitions(10);

    for (int i = 900; i < 1024; i++) {
      idealState.getRecord().setSimpleField(i + "", bufStr);
    }
    // System.out.println("record: " + idealState.getRecord());
    succeed = accessor.updateProperty(keyBuilder.idealStates("TestDB_2"), idealState);
    Assert.assertFalse(succeed);
    recordNew = accessor.getProperty(keyBuilder.idealStates("TestDB_2")).getRecord();
    arr = serializer.serialize(record);
    arrNew = serializer.serialize(recordNew);
    Assert.assertTrue(Arrays.equals(arr, arrNew));

    System.out.println("END testZNRecordSizeLimitUseZNRecordStreamingSerializer at "
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  public static String getClusterPropertyAsString(ZkClient zkClient, String clusterName,
      MediaType mediaType, 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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  }

  public static String getInstancePropertyAsString(ZkClient zkClient, String clusterName,
      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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  public static String getInstancePropertiesAsString(ZkClient zkClient, String clusterName,
      PropertyKey propertyKey, 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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  }

  public static String getPropertyAsString(ZkClient zkClient, String clusterName,
      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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    return sw.toString();
  }

  public static HelixDataAccessor getClusterDataAccessor(ZkClient zkClient, String clusterName) {
    return new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(zkClient));
  }
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    }
  }

  public static String getInstanceSessionId(ZkClient zkClient, String clusterName,
      String instanceName) {
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(zkClient));
    Builder keyBuilder = accessor.keyBuilder();

    ZNRecord liveInstance = accessor.getProperty(keyBuilder.liveInstance(instanceName)).getRecord();

    return liveInstance.getSimpleField(LiveInstanceProperty.SESSION_ID.toString());
  }
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        n, // number of nodes
        0, // replicas
        "STORAGE_DEFAULT_SM_SCHEMATA", false); // don't rebalance

    // rebalance ideal-state to use ANY_LIVEINSTANCE for preference list
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    PropertyKey.Builder keyBuilder = accessor.keyBuilder();
    PropertyKey key = keyBuilder.idealStates("TestSchemata0");
    IdealState idealState = accessor.getProperty(key);
    idealState.setReplicas(HelixConstants.StateModelToken.ANY_LIVEINSTANCE.toString());
    idealState.getRecord().setListField("TestSchemata0_0",
        Arrays.asList(HelixConstants.StateModelToken.ANY_LIVEINSTANCE.toString()));
    accessor.setProperty(key, idealState);

    ClusterControllerManager controller =
        new ClusterControllerManager(ZK_ADDR, clusterName, "controller");
    controller.syncStart();

    // start n-1 participants
    for (int i = 1; i < n; i++) {
      String instanceName = "localhost_" + (12918 + i);

      participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
      participants[i].syncStart();
    }

    boolean result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);

    // start the remaining 1 participant
    participants[0] = new MockParticipantManager(ZK_ADDR, clusterName, "localhost_12918");
    participants[0].syncStart();

    // make sure we have all participants in MASTER state
    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);
    key = keyBuilder.externalView("TestSchemata0");
    ExternalView externalView = accessor.getProperty(key);
    Map<String, String> stateMap = externalView.getStateMap("TestSchemata0_0");
    Assert.assertNotNull(stateMap);
    Assert.assertEquals(stateMap.size(), n, "all " + n + " participants should be in Master state");
    for (int i = 0; i < n; i++) {
      String instanceName = "localhost_" + (12918 + i);
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Related Classes of org.apache.helix.manager.zk.ZKHelixDataAccessor

  • org.apache.helix.api.accessor.TestAccessorRecreate
  • org.apache.helix.api.accessor.TestAtomicAccessors
  • org.apache.helix.api.TestNewStages
  • org.apache.helix.controller.restlet.ZkPropertyTransferClient
  • org.apache.helix.controller.restlet.ZNRecordUpdate
  • org.apache.helix.controller.stages.TestMessageThrottleStage
  • org.apache.helix.controller.stages.TestRebalancePipeline
  • org.apache.helix.controller.stages.TestStagesWithLogicalAccessors
  • org.apache.helix.healthcheck.TestAddDropAlert
  • org.apache.helix.healthcheck.TestDummyAlerts
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