Examples of ClusterDataCache

com.linkedin.helix.controller.stages.ClusterDataCache
Reads the data from the cluster using data accessor. This output ClusterData which provides useful methods to search/lookup properties @author kgopalak
org.apache.helix.controller.stages.ClusterDataCache
Reads the data from the cluster using data accessor. This output ClusterData which provides useful methods to search/lookup properties

Examples of org.apache.helix.controller.stages.ClusterDataCache

  static boolean verifyBestPossAndExtView(HelixDataAccessor accessor,
      Map<String, Map<String, String>> errStates, String clusterName, Set<String> resources) {
    try {
      Builder keyBuilder = accessor.keyBuilder();
      // read cluster once and do verification
      ClusterDataCache cache = new ClusterDataCache();
      cache.refresh(accessor);


      Map<String, IdealState> idealStates = cache.getIdealStates();
      if (idealStates == null) // || idealStates.isEmpty())
      {
        // ideal state is null because ideal state is dropped
        idealStates = Collections.emptyMap();
      }

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Examples of org.apache.helix.controller.stages.ClusterDataCache

            new ZKHelixDataAccessor(_clusterName, new ZkBaseDataAccessor<ZNRecord>(_client));
        Builder keyBuilder = accessor.keyBuilder();
        int numberOfPartitions =
            accessor.getProperty(keyBuilder.idealStates(_resourceName)).getRecord().getListFields()
                .size();
        ClusterDataCache cache = new ClusterDataCache();
        cache.refresh(accessor);
        String masterValue =
            cache.getStateModelDef(cache.getIdealState(_resourceName).getStateModelDefRef())
                .getStatesPriorityList().get(0);
        int replicas = Integer.parseInt(cache.getIdealState(_resourceName).getReplicas());
        String instanceGroupTag = cache.getIdealState(_resourceName).getInstanceGroupTag();
        int instances = 0;
        for (String liveInstanceName : cache.getLiveInstances().keySet()) {
          if (cache.getInstanceConfigMap().get(liveInstanceName).containsTag(instanceGroupTag)) {
            instances++;
          }
        }
        if (instances == 0) {
          instances = cache.getLiveInstances().size();
        }
        return verifyBalanceExternalView(
            accessor.getProperty(keyBuilder.externalView(_resourceName)).getRecord(),
            numberOfPartitions, masterValue, replicas, instances);
      } catch (Exception e) {

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Examples of org.apache.helix.controller.stages.ClusterDataCache

    _lastSeenSessions = new AtomicReference<Map<String, LiveInstance>>();
    _eventQueue = new ClusterEventBlockingQueue();
    _eventThread = new ClusterEventProcessor();
    _eventThread.setDaemon(true);
    _eventThread.start();
    _cache = new ClusterDataCache();
  }

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Examples of org.apache.helix.controller.stages.ClusterDataCache

    public boolean verify()
    {
      HelixDataAccessor accessor = new ZKHelixDataAccessor( _clusterName, new ZkBaseDataAccessor(_client));
      Builder keyBuilder = accessor.keyBuilder();
      int numberOfPartitions = accessor.getProperty(keyBuilder.idealStates(_resourceName)).getRecord().getListFields().size();
      ClusterDataCache cache = new ClusterDataCache();
      cache.refresh(accessor);
      String masterValue = cache.getStateModelDef(cache.getIdealState(_resourceName).getStateModelDefRef()).getStatesPriorityList().get(0);
      int replicas = Integer.parseInt(cache.getIdealState(_resourceName).getReplicas());
      return verifyBalanceExternalView(accessor.getProperty(keyBuilder.externalView(_resourceName)).getRecord(), numberOfPartitions, masterValue, replicas, cache.getLiveInstances().size(),cache.getIdealState(_resourceName).getMaxPartitionsPerInstance());
    }

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Examples of org.apache.helix.controller.stages.ClusterDataCache

      try
      {
        HelixDataAccessor accessor = new ZKHelixDataAccessor( _clusterName, new ZkBaseDataAccessor(_client));
        Builder keyBuilder = accessor.keyBuilder();
        int numberOfPartitions = accessor.getProperty(keyBuilder.idealStates(_resourceName)).getRecord().getListFields().size();
        ClusterDataCache cache = new ClusterDataCache();
        cache.refresh(accessor);
        String masterValue = cache.getStateModelDef(cache.getIdealState(_resourceName).getStateModelDefRef()).getStatesPriorityList().get(0);
        int replicas = Integer.parseInt(cache.getIdealState(_resourceName).getReplicas());
        String instanceGroupTag = cache.getIdealState(_resourceName).getInstanceGroupTag();
        int instances = 0;
        for(String  liveInstanceName : cache.getLiveInstances().keySet())
        {
          if(cache.getInstanceConfigMap().get(liveInstanceName).containsTag(instanceGroupTag))
          {
            instances ++;
          }
        }
        if(instances == 0)
        {
          instances = cache.getLiveInstances().size();
        }
        return verifyBalanceExternalView(accessor.getProperty(keyBuilder.externalView(_resourceName)).getRecord(), numberOfPartitions, masterValue, replicas, instances);
      }
      catch(Exception e)
      {

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Examples of org.apache.helix.controller.stages.ClusterDataCache

    public boolean verify()
    {
      HelixDataAccessor accessor = new ZKHelixDataAccessor( _clusterName, new ZkBaseDataAccessor(_client));
      Builder keyBuilder = accessor.keyBuilder();
      int numberOfPartitions = accessor.getProperty(keyBuilder.idealStates(_resourceName)).getRecord().getListFields().size();
      ClusterDataCache cache = new ClusterDataCache();
      cache.refresh(accessor);
      String masterValue = cache.getStateModelDef(cache.getIdealState(_resourceName).getStateModelDefRef()).getStatesPriorityList().get(0);
      int replicas = Integer.parseInt(cache.getIdealState(_resourceName).getReplicas());
      String instanceGroupTag = cache.getIdealState(_resourceName).getInstanceGroupTag();
      int instances = 0;
      for(String  liveInstanceName : cache.getLiveInstances().keySet())
      {
        if(cache.getInstanceConfigMap().get(liveInstanceName).containsTag(instanceGroupTag))
        {
          instances ++;
        }
      }
      if(instances == 0)
      {
        instances = cache.getLiveInstances().size();
      }
      return verifyBalanceExternalView(accessor.getProperty(keyBuilder.externalView(_resourceName)).getRecord(), numberOfPartitions, masterValue, replicas, instances);
    }

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Examples of org.apache.helix.controller.stages.ClusterDataCache

  {
    try
    {
      Builder keyBuilder = accessor.keyBuilder();
      // read cluster once and do verification
      ClusterDataCache cache = new ClusterDataCache();
      cache.refresh(accessor);


      Map<String, IdealState> idealStates = cache.getIdealStates();
      if (idealStates == null)  // || idealStates.isEmpty())
      {
        // ideal state is null because ideal state is dropped
        idealStates = Collections.emptyMap();
      }

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