Package org.apache.helix.controller.pipeline

Examples of org.apache.helix.controller.pipeline.StageException

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    HelixManager manager = event.getAttribute("helixmanager");
    HealthDataCache cache = event.getAttribute("HealthDataCache");

    if (manager == null || cache == null) {
      throw new StageException("helixmanager|HealthDataCache attribute value is null");
    }
    if (_alertsHolder == null) {
      _statsHolder = new StatsHolder(manager, cache);
      _alertsHolder = new AlertsHolder(manager, cache, _statsHolder);
    } else {
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    BestPossibleStateOutput bestPossibleStateOutput =
        event.getAttribute(AttributeName.BEST_POSSIBLE_STATE.toString());

    if (cluster == null || resourceMap == null || msgSelectionOutput == null
        || bestPossibleStateOutput == null) {
      throw new StageException("Missing attributes in event: " + event
          + ". Requires ClusterDataCache|RESOURCES|BEST_POSSIBLE_STATE|MESSAGES_SELECTED");
    }

    MessageOutput output = new MessageOutput();
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        event.getAttribute(AttributeName.CURRENT_STATE.toString());
    Map<String, Resource> resourceMap = event.getAttribute(AttributeName.RESOURCES.toString());
    ClusterDataCache cache = event.getAttribute("ClusterDataCache");

    if (currentStateOutput == null || resourceMap == null || cache == null) {
      throw new StageException("Missing attributes in event:" + event
          + ". Requires CURRENT_STATE|RESOURCES|DataCache");
    }

    BestPossibleStateOutput bestPossibleStateOutput =
        compute(event, resourceMap, currentStateOutput);
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  @Override
  public void process(ClusterEvent event) throws Exception {
    ClusterDataCache cache = event.getAttribute("ClusterDataCache");
    if (cache == null) {
      throw new StageException("Missing attributes in event:" + event + ". Requires DataCache");
    }

    Map<String, IdealState> idealStates = cache.getIdealStates();

    Map<String, Resource> resourceMap = new LinkedHashMap<String, Resource>();

    if (idealStates != null && idealStates.size() > 0) {
      for (IdealState idealState : idealStates.values()) {
        Set<String> partitionSet = idealState.getPartitionSet();
        String resourceName = idealState.getResourceName();
        if (!resourceMap.containsKey(resourceName)) {
          Resource resource = new Resource(resourceName);
          resourceMap.put(resourceName, resource);
          resource.setStateModelDefRef(idealState.getStateModelDefRef());
          resource.setStateModelFactoryName(idealState.getStateModelFactoryName());
          resource.setBucketSize(idealState.getBucketSize());
          resource.setBatchMessageMode(idealState.getBatchMessageMode());
        }

        for (String partition : partitionSet) {
          addPartition(partition, resourceName, resourceMap);
        }
      }
    }

    // It's important to get partitions from CurrentState as well since the
    // idealState might be removed.
    Map<String, LiveInstance> availableInstances = cache.getLiveInstances();

    if (availableInstances != null && availableInstances.size() > 0) {
      for (LiveInstance instance : availableInstances.values()) {
        String instanceName = instance.getInstanceName();
        String clientSessionId = instance.getSessionId();

        Map<String, CurrentState> currentStateMap =
            cache.getCurrentState(instanceName, clientSessionId);
        if (currentStateMap == null || currentStateMap.size() == 0) {
          continue;
        }
        for (CurrentState currentState : currentStateMap.values()) {

          String resourceName = currentState.getResourceName();
          Map<String, String> resourceStateMap = currentState.getPartitionStateMap();

          if (resourceStateMap.keySet().isEmpty()) {
            // don't include empty current state for dropped resource
            continue;
          }

          // don't overwrite ideal state settings
          if (!resourceMap.containsKey(resourceName)) {
            addResource(resourceName, resourceMap);
            Resource resource = resourceMap.get(resourceName);
            resource.setStateModelDefRef(currentState.getStateModelDefRef());
            resource.setStateModelFactoryName(currentState.getStateModelFactoryName());
            resource.setBucketSize(currentState.getBucketSize());
            resource.setBatchMessageMode(currentState.getBatchMessageMode());
          }

          if (currentState.getStateModelDefRef() == null) {
            LOG.error("state model def is null." + "resource:" + currentState.getResourceName()
                + ", partitions: " + currentState.getPartitionStateMap().keySet() + ", states: "
                + currentState.getPartitionStateMap().values());
            throw new StageException("State model def is null for resource:"
                + currentState.getResourceName());
          }

          for (String partition : resourceStateMap.keySet()) {
            addPartition(partition, resourceName, resourceMap);
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    HelixManager manager = event.getAttribute("helixmanager");
    Map<String, Resource> resourceMap = event.getAttribute(AttributeName.RESOURCES.toString());
    ClusterDataCache cache = event.getAttribute("ClusterDataCache");

    if (manager == null || resourceMap == null || cache == null) {
      throw new StageException("Missing attributes in event:" + event
          + ". Requires ClusterManager|RESOURCES|DataCache");
    }

    HelixDataAccessor dataAccessor = manager.getHelixDataAccessor();
    PropertyKey.Builder keyBuilder = dataAccessor.keyBuilder();
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  public void process(ClusterEvent event) throws Exception {
    ClusterDataCache cache = event.getAttribute("ClusterDataCache");
    Map<String, Resource> resourceMap = event.getAttribute(AttributeName.RESOURCES.toString());

    if (cache == null || resourceMap == null) {
      throw new StageException("Missing attributes in event:" + event
          + ". Requires DataCache|RESOURCE");
    }

    Map<String, LiveInstance> liveInstances = cache.getLiveInstances();
    CurrentStateOutput currentStateOutput = new CurrentStateOutput();
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  {
    HelixManager manager = event.getAttribute("helixmanager");
    ClusterDataCache cache = event.getAttribute("ClusterDataCache");
    if (manager == null || cache == null)
    {
      throw new StageException("Missing attributes in event:" + event
          + ". Requires HelixManager | DataCache");
    }

    HelixManagerProperties properties = manager.getProperties();
    Map<String, LiveInstance> liveInstanceMap = cache.getLiveInstances();
    for (LiveInstance liveInstance : liveInstanceMap.values())
    {
      String participantVersion = liveInstance.getHelixVersion();
      if (!properties.isParticipantCompatible(participantVersion))
      {
        String errorMsg = "incompatible participant. pipeline will not continue. "
                        + "controller: " + manager.getInstanceName()
                        + ", controllerVersion: " + properties.getVersion()
                        + ", minimumSupportedParticipantVersion: "
                        + properties.getProperty("miminum_supported_version.participant")
                        + ", participant: " + liveInstance.getInstanceName()
                        + ", participantVersion: " + participantVersion;
        LOG.error(errorMsg);
        throw new StageException(errorMsg);
      }
    }
  }
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    HelixManager manager = event.getAttribute("helixmanager");
    if (manager == null)
    {
      throw new StageException("HelixManager attribute value is null");
    }
    HelixDataAccessor dataAccessor = manager.getHelixDataAccessor();
    _cache.refresh(dataAccessor);
   
    ClusterStatusMonitor clusterStatusMonitor = (ClusterStatusMonitor) event.getAttribute("clusterStatusMonitor");
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    Map<String, Resource> resourceMap =
        event.getAttribute(AttributeName.RESOURCES.toString());

    if (cache == null || resourceMap == null)
    {
      throw new StageException("Missing attributes in event:" + event
          + ". Requires DataCache|RESOURCE");
    }

    Map<String, LiveInstance> liveInstances = cache.getLiveInstances();
    CurrentStateOutput currentStateOutput = new CurrentStateOutput();
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    Map<String, Resource> resourceMap =
        event.getAttribute(AttributeName.RESOURCES.toString());

    if (cache == null || resourceMap == null || msgSelectionOutput == null)
    {
      throw new StageException("Missing attributes in event: " + event
          + ". Requires ClusterDataCache|RESOURCES|MESSAGES_SELECTED");
    }

    MessageThrottleStageOutput output = new MessageThrottleStageOutput();
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Related Classes of org.apache.helix.controller.pipeline.StageException

  • org.apache.helix.controller.stages.BestPossibleStateCalcStage
  • org.apache.helix.controller.stages.CompatibilityCheckStage
  • org.apache.helix.controller.stages.CurrentStateComputationStage
  • org.apache.helix.controller.stages.ExternalViewComputeStage
  • org.apache.helix.controller.stages.MessageGenerationPhase
  • org.apache.helix.controller.stages.MessageGenerationStage
  • org.apache.helix.controller.stages.MessageSelectionStage
  • org.apache.helix.controller.stages.MessageThrottleStage
  • org.apache.helix.controller.stages.ReadClusterDataStage
  • org.apache.helix.controller.stages.ReadHealthDataStage
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