Package org.apache.helix.controller.stages

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

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  @Test
  public void testNull()
  {
    ClusterEvent event = new ClusterEvent("sampleEvent");
    ResourceComputationStage stage = new ResourceComputationStage();
    StageContext context = new StageContext();
    stage.init(context);
    stage.preProcess();
    boolean exceptionCaught = false;
    try
    {
      stage.process(event);
    } catch (Exception e)
    {
      exceptionCaught = true;
    }
    AssertJUnit.assertTrue(exceptionCaught);
    stage.postProcess();
  }
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      Pipeline dataRefresh = new Pipeline();
      dataRefresh.addStage(new ReadClusterDataStage());

      // rebalance pipeline
      Pipeline rebalancePipeline = new Pipeline();
      rebalancePipeline.addStage(new ResourceComputationStage());
      rebalancePipeline.addStage(new CurrentStateComputationStage());
      rebalancePipeline.addStage(new RebalanceIdealStateStage());
      rebalancePipeline.addStage(new BestPossibleStateCalcStage());
      rebalancePipeline.addStage(new MessageGenerationPhase());
      rebalancePipeline.addStage(new MessageSelectionStage());
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  static BestPossibleStateOutput calcBestPossState(ClusterDataCache cache) throws Exception {
    ClusterEvent event = new ClusterEvent("sampleEvent");
    event.addAttribute("ClusterDataCache", cache);

    ResourceComputationStage rcState = new ResourceComputationStage();
    CurrentStateComputationStage csStage = new CurrentStateComputationStage();
    BestPossibleStateCalcStage bpStage = new BestPossibleStateCalcStage();

    runStage(event, rcState);
    runStage(event, csStage);
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    Pipeline dataRefresh = new Pipeline();
    dataRefresh.addStage(new ReadClusterDataStage());

    // rebalance pipeline
    Pipeline rebalancePipeline = new Pipeline();
    rebalancePipeline.addStage(new ResourceComputationStage());
    rebalancePipeline.addStage(new CurrentStateComputationStage());
    rebalancePipeline.addStage(new BestPossibleStateCalcStage());
    rebalancePipeline.addStage(new MessageGenerationPhase());
    rebalancePipeline.addStage(new MessageSelectionStage());
    rebalancePipeline.addStage(new MessageThrottleStage());
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    Pipeline dataRefresh = new Pipeline();
    dataRefresh.addStage(new ReadClusterDataStage());

    // rebalance pipeline
    Pipeline rebalancePipeline = new Pipeline();
    rebalancePipeline.addStage(new ResourceComputationStage());
    rebalancePipeline.addStage(new CurrentStateComputationStage());
    rebalancePipeline.addStage(new BestPossibleStateCalcStage());
    rebalancePipeline.addStage(new MessageGenerationPhase());
    rebalancePipeline.addStage(new MessageSelectionStage());
    rebalancePipeline.addStage(new MessageThrottleStage());
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    Pipeline dataRefresh = new Pipeline();
    dataRefresh.addStage(new ReadClusterDataStage());

    // rebalance pipeline
    Pipeline rebalancePipeline = new Pipeline();
    rebalancePipeline.addStage(new ResourceComputationStage());
    rebalancePipeline.addStage(new CurrentStateComputationStage());
    rebalancePipeline.addStage(new BestPossibleStateCalcStage());
    rebalancePipeline.addStage(new MessageGenerationPhase());
    rebalancePipeline.addStage(new MessageSelectionStage());
    rebalancePipeline.addStage(new MessageThrottleStage());
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    idealState.setStateModelDefRef("MasterSlave");

    HelixDataAccessor accessor = manager.getHelixDataAccessor();
    Builder keyBuilder = accessor.keyBuilder();
    accessor.setProperty(keyBuilder.idealStates(resourceName), idealState);
    ResourceComputationStage stage = new ResourceComputationStage();
    runStage(event, new ReadClusterDataStage());
    runStage(event, stage);

    Map<String, Resource> resource = event.getAttribute(AttributeName.RESOURCES.toString());
    AssertJUnit.assertEquals(1, resource.size());
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    // List<IdealState> idealStates = new ArrayList<IdealState>();
    String[] resources = new String[] {
        "testResource1", "testResource2"
    };
    List<IdealState> idealStates = setupIdealState(5, resources, 10, 1, RebalanceMode.SEMI_AUTO);
    ResourceComputationStage stage = new ResourceComputationStage();
    runStage(event, new ReadClusterDataStage());
    runStage(event, stage);

    Map<String, Resource> resourceMap = event.getAttribute(AttributeName.RESOURCES.toString());
    AssertJUnit.assertEquals(resources.length, resourceMap.size());
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    currentState.setState("testResourceOld_2", "MASTER");
    currentState.setStateModelDefRef("MasterSlave");
    accessor.setProperty(keyBuilder.currentState(instanceName, sessionId, oldResource),
        currentState);

    ResourceComputationStage stage = new ResourceComputationStage();
    runStage(event, new ReadClusterDataStage());
    runStage(event, stage);

    Map<String, Resource> resourceMap = event.getAttribute(AttributeName.RESOURCES.toString());
    // +1 because it will have one for current state
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  }

  @Test
  public void testNull() {
    ClusterEvent event = new ClusterEvent("sampleEvent");
    ResourceComputationStage stage = new ResourceComputationStage();
    StageContext context = new StageContext();
    stage.init(context);
    stage.preProcess();
    boolean exceptionCaught = false;
    try {
      stage.process(event);
    } catch (Exception e) {
      exceptionCaught = true;
    }
    AssertJUnit.assertTrue(exceptionCaught);
    stage.postProcess();
  }
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Related Classes of org.apache.helix.controller.stages.ResourceComputationStage

  • org.apache.helix.api.Cluster
  • org.apache.helix.api.Partition
  • org.apache.helix.api.Resource
  • org.apache.helix.controller.GenericHelixController
  • org.apache.helix.controller.rebalancer.config.RebalancerConfig
  • org.apache.helix.controller.rebalancer.context.RebalancerConfig
  • org.apache.helix.controller.stages.TestMessageThrottleStage
  • org.apache.helix.controller.stages.TestRebalancePipeline
  • org.apache.helix.controller.stages.TestResourceComputationStage
  • org.apache.helix.model.CurrentState
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