Package org.apache.helix

Examples of org.apache.helix.ConfigAccessor

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  }

  void checkResourceConfig(String resourceName, HelixManager manager) {
    if (!_resourceThreadpoolSizeMap.containsKey(resourceName)) {
      int threadpoolSize = -1;
      ConfigAccessor configAccessor = manager.getConfigAccessor();
      if (configAccessor != null) {
        ConfigScope scope =
            new ConfigScopeBuilder().forCluster(manager.getClusterName()).forResource(resourceName)
                .build();

        String threadpoolSizeStr = configAccessor.get(scope, MAX_THREADS);
        try {
          if (threadpoolSizeStr != null) {
            threadpoolSize = Integer.parseInt(threadpoolSizeStr);
          }
        } catch (Exception e) {
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    ExternalView externalView =
        manager.getHelixDataAccessor().getProperty(kb.externalView("TestDB"));
    // Test the DISABLE_INSTANCE alerts
    String participant1 = "localhost_" + (START_PORT + 3);
    String participant2 = "localhost_" + (START_PORT + 2);
    ConfigAccessor configAccessor = manager.getConfigAccessor();
    // scope = new
    // ConfigScopeBuilder().forCluster(manager.getClusterName()).forParticipant(participant1).build();
    scope =
        new HelixConfigScopeBuilder(ConfigScopeProperty.PARTICIPANT)
            .forCluster(manager.getClusterName()).forParticipant(participant1).build();
    String isEnabled = configAccessor.get(scope, "HELIX_ENABLED");
    Assert.assertFalse(Boolean.parseBoolean(isEnabled));

    // scope = new
    // ConfigScopeBuilder().forCluster(manager.getClusterName()).forParticipant(participant2).build();
    scope =
        new HelixConfigScopeBuilder(ConfigScopeProperty.PARTICIPANT)
            .forCluster(manager.getClusterName()).forParticipant(participant2).build();
    isEnabled = configAccessor.get(scope, "HELIX_ENABLED");
    Assert.assertFalse(Boolean.parseBoolean(isEnabled));

    for (String partitionName : externalView.getRecord().getMapFields().keySet()) {
      for (String hostName : externalView.getRecord().getMapField(partitionName).keySet()) {
        if (hostName.equals(participant1) || hostName.equals(participant2)) {
          Assert.assertEquals(externalView.getRecord().getMapField(partitionName).get(hostName),
              "OFFLINE");
        }
      }
    }

    // enable the disabled instances
    setHealthData(metrics3, metrics3);
    task.aggregate();
    Thread.sleep(1000);

    manager.getClusterManagmentTool().enableInstance(manager.getClusterName(), participant2, true);
    manager.getClusterManagmentTool().enableInstance(manager.getClusterName(), participant1, true);

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

    // Test the DISABLE_PARTITION case
    int[] metrics4 = {
        22, 115, 22, 16, 163
    };
    setHealthData2(metrics4);
    task.aggregate();

    // scope = new
    // ConfigScopeBuilder().forCluster(manager.getClusterName()).forParticipant(participant1).build();
    scope =
        new HelixConfigScopeBuilder(ConfigScopeProperty.PARTICIPANT)
            .forCluster(manager.getClusterName()).forParticipant(participant1).build();
    isEnabled = configAccessor.get(scope, "HELIX_ENABLED");
    Assert.assertTrue(Boolean.parseBoolean(isEnabled));

    // scope = new
    // ConfigScopeBuilder().forCluster(manager.getClusterName()).forParticipant(participant2).build();
    scope =
        new HelixConfigScopeBuilder(ConfigScopeProperty.PARTICIPANT)
            .forCluster(manager.getClusterName()).forParticipant(participant2).build();
    isEnabled = configAccessor.get(scope, "HELIX_ENABLED");
    Assert.assertTrue(Boolean.parseBoolean(isEnabled));

    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            CLUSTER_NAME));
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  private static Logger logger = Logger.getLogger(ZKHelixAdmin.class);

  public ZKHelixAdmin(ZkClient zkClient) {
    _zkClient = zkClient;
    _configAccessor = new ConfigAccessor(zkClient);
  }
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  public ZKHelixAdmin(String zkAddress) {
    int timeOutInSec = Integer.parseInt(System.getProperty(CONNECTION_TIMEOUT, "30"));
    _zkClient = new ZkClient(zkAddress, timeOutInSec * 1000);
    _zkClient.setZkSerializer(new ZNRecordSerializer());
    _zkClient.waitUntilConnected(timeOutInSec, TimeUnit.SECONDS);
    _configAccessor = new ConfigAccessor(_zkClient);
  }
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  private static Logger logger = Logger.getLogger(ZKHelixAdmin.class);

  public ZKHelixAdmin(ZkClient zkClient) {
    _zkClient = zkClient;
    _configAccessor = new ConfigAccessor(zkClient);
  }
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  public ZKHelixAdmin(String zkAddress) {
    int timeOutInSec = Integer.parseInt(System.getProperty(CONNECTION_TIMEOUT, "30"));
    _zkClient = new ZkClient(zkAddress, timeOutInSec * 1000);
    _zkClient.setZkSerializer(new ZNRecordSerializer());
    _zkClient.waitUntilConnected(timeOutInSec, TimeUnit.SECONDS);
    _configAccessor = new ConfigAccessor(_zkClient);
  }
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  }

  void checkResourceConfig(String resourceName, HelixManager manager) {
    if (!_resourceThreadpoolSizeMap.containsKey(resourceName)) {
      int threadpoolSize = -1;
      ConfigAccessor configAccessor = manager.getConfigAccessor();
      if (configAccessor != null) {
        HelixConfigScope scope =
            new HelixConfigScopeBuilder(ConfigScopeProperty.RESOURCE)
                .forCluster(manager.getClusterName()).forResource(resourceName).build();

        String threadpoolSizeStr = configAccessor.get(scope, MAX_THREADS);
        try {
          if (threadpoolSizeStr != null) {
            threadpoolSize = Integer.parseInt(threadpoolSizeStr);
          }
        } catch (Exception e) {
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public class TestResourceThreadpoolSize extends ZkStandAloneCMTestBase {
  @Test
  public void TestThreadPoolSizeConfig() {
    HelixManager manager = _participants[0];
    ConfigAccessor accessor = manager.getConfigAccessor();
    HelixConfigScope scope =
        new HelixConfigScopeBuilder(ConfigScopeProperty.RESOURCE)
            .forCluster(manager.getClusterName()).forResource("NextDB").build();
    accessor.set(scope, HelixTaskExecutor.MAX_THREADS, "" + 12);

    _setupTool.addResourceToCluster(CLUSTER_NAME, "NextDB", 64, STATE_MODEL);
    _setupTool.rebalanceStorageCluster(CLUSTER_NAME, "NextDB", 3);

    boolean result =
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    _logger.info("registering msg factory for type " + type);
    int threadpoolSize = HelixTaskExecutor.DEFAULT_PARALLEL_TASKS;
    String threadpoolSizeStr = null;
    String key = type + "." + HelixTaskExecutor.MAX_THREADS;

    ConfigAccessor configAccessor = _manager.getConfigAccessor();
    if (configAccessor != null) {
      HelixConfigScope scope = null;

      // Read the participant config and cluster config for the per-message type thread pool size.
      // participant config will override the cluster config.

      if (_manager.getInstanceType() == InstanceType.PARTICIPANT
          || _manager.getInstanceType() == InstanceType.CONTROLLER_PARTICIPANT) {
        scope =
            new HelixConfigScopeBuilder(ConfigScopeProperty.PARTICIPANT)
                .forCluster(_manager.getClusterName()).forParticipant(_manager.getInstanceName())
                .build();
        threadpoolSizeStr = configAccessor.get(scope, key);
      }

      if (threadpoolSizeStr == null) {
        scope =
            new HelixConfigScopeBuilder(ConfigScopeProperty.CLUSTER).forCluster(
                _manager.getClusterName()).build();
        threadpoolSizeStr = configAccessor.get(scope, key);
      }
    }

    if (threadpoolSizeStr != null) {
      try {
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  @Transition(to = "ONLINE", from = "OFFLINE")
  public void onBecomeOnlineFromOffline(Message message, NotificationContext context)
      throws Exception {
    LOG.debug(_workerId + " becomes ONLINE from OFFLINE for " + _partition);
    ConfigAccessor clusterConfig = context.getManager().getConfigAccessor();
    HelixManager manager = context.getManager();
    HelixConfigScope clusterScope =
        new HelixConfigScopeBuilder(ConfigScopeProperty.CLUSTER).forCluster(
            manager.getClusterName()).build();
    String json = clusterConfig.get(clusterScope, message.getResourceId().stringify());
    Dag.Node node = Dag.Node.fromJson(json);
    Set<String> parentIds = node.getParentIds();
    ResourceId resourceId = message.getResourceId();
    int numPartitions = node.getNumPartitions();
    Task task =
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Related Classes of org.apache.helix.ConfigAccessor

  • org.apache.helix.agent.TestHelixAgent
  • org.apache.helix.healthcheck.HealthStatsAggregationTask
  • org.apache.helix.healthcheck.HealthStatsAggregator
  • org.apache.helix.healthcheck.TestAlertActionTriggering
  • org.apache.helix.integration.ZkIntegrationTestBase
  • org.apache.helix.manager.zk.ZKHelixAdmin
  • org.apache.helix.manager.zk.ZkHelixConnection
  • org.apache.helix.manager.zk.ZKHelixManager
  • org.apache.helix.messaging.DefaultMessagingService
  • org.apache.helix.messaging.handling.HelixTaskExecutor
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