Package com.linkedin.helix.model

Examples of com.linkedin.helix.model.ExternalView

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      {
        Map<String, String> retMap = getResourceAndPartitionKey(resGroupPartitionKey);
        String resGroup = retMap.get("RESOURCE");
        String partitionKey = retMap.get("PARTITION");

        ExternalView extView = accessor.getProperty(keyBuilder.externalView(resGroup));
        for (String instance : stateMap.get(resGroupPartitionKey))
        {
          String actualState = extView.getStateMap(partitionKey).get(instance);
          Assert.assertNotNull(actualState, "externalView doesn't contain state for "
              + resGroup + "/" + partitionKey + " on " + instance + " (expect " + state
              + ")");

          Assert.assertEquals(actualState, state, "externalView for " + resGroup + "/"
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    List<ExternalView> newExtViews = new ArrayList<ExternalView>();
    List<PropertyKey> keys = new ArrayList<PropertyKey>();
   
    for (String resourceName : resourceMap.keySet())
    {
      ExternalView view = new ExternalView(resourceName);
      view.setBucketSize(currentStateOutput.getBucketSize(resourceName));
     
      Resource resource = resourceMap.get(resourceName);
      for (Partition partition : resource.getPartitions())
      {
        Map<String, String> currentStateMap =
            currentStateOutput.getCurrentStateMap(resourceName, partition);
        if (currentStateMap != null && currentStateMap.size() > 0)
        {
          // Set<String> disabledInstances
          // = cache.getDisabledInstancesForResource(resource.toString());
          for (String instance : currentStateMap.keySet())
          {
            // if (!disabledInstances.contains(instance))
            // {
            view.setState(partition.getPartitionName(),
                          instance,
                          currentStateMap.get(instance));
            // }
          }
        }
      }
      // Update cluster status monitor mbean
      ClusterStatusMonitor clusterStatusMonitor =
          (ClusterStatusMonitor) event.getAttribute("clusterStatusMonitor");
      if (clusterStatusMonitor != null)
      {
        clusterStatusMonitor.onExternalViewChange(view,
                                                  cache._idealStateMap.get(view.getResourceName()));
      }
     
      // compare the new external view with current one, set only on different
      Map<String, ExternalView> curExtViews =
          dataAccessor.getChildValuesMap(manager.getHelixDataAccessor()
                                             .keyBuilder()
                                             .externalViews());

      ExternalView curExtView = curExtViews.get(resourceName);
      if (curExtView == null || !curExtView.getRecord().equals(view.getRecord()))
      {
        keys.add(manager.getHelixDataAccessor().keyBuilder().externalView(resourceName));
        newExtViews.add(view);
        // dataAccessor.setProperty(PropertyType.EXTERNALVIEW, view,
        // resourceName);
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    ZNRecord record = new ZNRecord("TESTDB");

    // one master
    add(record, "TESTDB_0", "localhost_8900", "MASTER");
    List<ExternalView> externalViewList = new ArrayList<ExternalView>();
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);

    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 1);

    // additions
    add(record, "TESTDB_0", "localhost_8901", "MASTER");
    add(record, "TESTDB_1", "localhost_8900", "SLAVE");

    externalViewList = new ArrayList<ExternalView>();
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 2);

    instances = routingTable.getInstances("TESTDB", "TESTDB_1", "SLAVE");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 1);

    // updates
    add(record, "TESTDB_0", "localhost_8901", "SLAVE");
    externalViewList = new ArrayList<ExternalView>();
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "SLAVE");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 1);
  }
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    List<ExternalView> externalViewList = new ArrayList<ExternalView>();
    ZNRecord record = new ZNRecord("TESTDB");

    // one master
    add(record, "TESTDB_0", "localhost_8900", "MASTER");
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instances = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instances);
    AssertJUnit.assertEquals(instances.size(), 1);
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    add(record, "TESTDB_2", "localhost_8901", "SLAVE");
    add(record, "TESTDB_3", "localhost_8901", "MASTER");
    add(record, "TESTDB_4", "localhost_8901", "MASTER");
    add(record, "TESTDB_5", "localhost_8901", "MASTER");

    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    instancesList = routingTable.getInstances("TESTDB", "TESTDB_0", "MASTER");
    AssertJUnit.assertNotNull(instancesList);
    AssertJUnit.assertEquals(instancesList.size(), 1);
    instancesSet = routingTable.getInstances("TESTDB", "MASTER");
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    ZNRecord record = new ZNRecord("TESTDB");
    for (int i = 0; i < 1000; i++)
    {
      add(record, "TESTDB_" + i, "localhost_8900", "MASTER");
    }
    externalViewList.add(new ExternalView(record));
    routingTable.onExternalViewChange(externalViewList, changeContext);
    Callable<Boolean> runnable = new Callable<Boolean>() {
      @Override
      public Boolean call() throws Exception
      {
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    MockHelixManager manager = new MockHelixManager();
    ResourceMonitor monitor = new ResourceMonitor(_clusterName, _dbName);

    HelixDataAccessor helixDataAccessor = manager.getHelixDataAccessor();
    Builder keyBuilder = helixDataAccessor.keyBuilder();
    ExternalView externalView =
        helixDataAccessor.getProperty(keyBuilder.externalView(_dbName));
    IdealState idealState = helixDataAccessor.getProperty(keyBuilder.idealStates(_dbName));

    monitor.updateExternalView(externalView, idealState);

    AssertJUnit.assertEquals(monitor.getDifferenceWithIdealStateGauge(), 0);
    AssertJUnit.assertEquals(monitor.getErrorPartitionGauge(), 0);
    AssertJUnit.assertEquals(monitor.getExternalViewPartitionGauge(), _partitions);
    AssertJUnit.assertEquals(monitor.getPartitionGauge(), _partitions);
    monitor.getBeanName();

    int n = 4;
    for (int i = 0; i < n; i++)
    {
      Map<String, String> map = externalView.getStateMap(_dbName + "_" + 3 * i);
      String key = map.keySet().toArray()[0].toString();
      map.put(key, "ERROR");
      externalView.setStateMap(_dbName + "_" + 3 * i, map);
    }

    monitor.updateExternalView(externalView, idealState);
    AssertJUnit.assertEquals(monitor.getDifferenceWithIdealStateGauge(), 0);
    AssertJUnit.assertEquals(monitor.getErrorPartitionGauge(), n);
    AssertJUnit.assertEquals(monitor.getExternalViewPartitionGauge(), _partitions);
    AssertJUnit.assertEquals(monitor.getPartitionGauge(), _partitions);

    n = 5;
    for (int i = 0; i < n; i++)
    {
      externalView.getRecord().getMapFields().remove(_dbName + "_" + 4 * i);
    }

    monitor.updateExternalView(externalView, idealState);
    AssertJUnit.assertEquals(monitor.getDifferenceWithIdealStateGauge(), n
        * (_replicas + 1));
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Related Classes of com.linkedin.helix.model.ExternalView

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  • com.linkedin.helix.controller.TestControllerRebalancingTimer
  • com.linkedin.helix.healthcheck.TestAlertActionTriggering
  • com.linkedin.helix.integration.TestAddStateModelFactoryAfterConnect
  • com.linkedin.helix.integration.TestAutoRebalance
  • com.linkedin.helix.integration.TestDrop
  • com.linkedin.helix.integration.TestMessagePartitionStateMismatch
  • com.linkedin.helix.integration.TestParticipantErrorMessage
  • com.linkedin.helix.integration.TestStateTransitionTimeout
  • com.linkedin.helix.manager.zk.TestZkHelixAdmin
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