Package org.apache.helix.controller.stages

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

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      rebalancePipeline.addStage(new ResourceComputationStage());
      rebalancePipeline.addStage(new CurrentStateComputationStage());
      rebalancePipeline.addStage(new BestPossibleStateCalcStage());
      rebalancePipeline.addStage(new MessageGenerationPhase());
      rebalancePipeline.addStage(new MessageSelectionStage());
      rebalancePipeline.addStage(new MessageThrottleStage());
      rebalancePipeline.addStage(new TaskAssignmentStage());

      // external view generation
      Pipeline externalViewPipeline = new Pipeline();
      externalViewPipeline.addStage(new ExternalViewComputeStage());
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    setupStateModel(clusterName);

    ClusterEvent event = new ClusterEvent("testEvent");
    event.addAttribute("helixmanager", manager);

    MessageThrottleStage throttleStage = new MessageThrottleStage();
    try
    {
      runStage(event, throttleStage);
      Assert.fail("Should throw exception since DATA_CACHE is null");
    }
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    // ConfigScopeProperty.CONSTRAINT.toString(),
    // ConstraintType.MESSAGE_CONSTRAINT.toString());
    ClusterConstraints constraint =
        accessor.getProperty(keyBuilder.constraint(ConstraintType.MESSAGE_CONSTRAINT.toString()));

    MessageThrottleStage throttleStage = new MessageThrottleStage();

    // test constraintSelection
    // message1: hit contraintSelection rule1 and rule2
    Message msg1 =
        createMessage(MessageType.STATE_TRANSITION,
                      "msgId-001",
                      "OFFLINE",
                      "SLAVE",
                      "TestDB",
                      "localhost_0");

    Map<ConstraintAttribute, String> msgAttr =
        ClusterConstraints.toConstraintAttributes(msg1);
    Set<ConstraintItem> matches = constraint.match(msgAttr);
    System.out.println(msg1 + " matches(" + matches.size() + "): " + matches);
    Assert.assertEquals(matches.size(), 5);
    Assert.assertTrue(containsConstraint(matches, constraint0));
    Assert.assertTrue(containsConstraint(matches, constraint1));
    Assert.assertTrue(containsConstraint(matches, constraint2));
    Assert.assertTrue(containsConstraint(matches, constraint4));
    Assert.assertTrue(containsConstraint(matches, constraint5));

    matches = throttleStage.selectConstraints(matches, msgAttr);
    System.out.println(msg1 + " matches(" + matches.size() + "): " + matches);
    Assert.assertEquals(matches.size(), 2);
    Assert.assertTrue(containsConstraint(matches, constraint1));
    Assert.assertTrue(containsConstraint(matches, constraint5));

    // message2: hit contraintSelection rule1, rule2, and rule3
    Message msg2 =
        createMessage(MessageType.STATE_TRANSITION,
                      "msgId-002",
                      "OFFLINE",
                      "SLAVE",
                      "TestDB",
                      "localhost_1");

    msgAttr = ClusterConstraints.toConstraintAttributes(msg2);
    matches = constraint.match(msgAttr);
    System.out.println(msg2 + " matches(" + matches.size() + "): " + matches);
    Assert.assertEquals(matches.size(), 5);
    Assert.assertTrue(containsConstraint(matches, constraint0));
    Assert.assertTrue(containsConstraint(matches, constraint1));
    Assert.assertTrue(containsConstraint(matches, constraint2));
    Assert.assertTrue(containsConstraint(matches, constraint3));
    Assert.assertTrue(containsConstraint(matches, constraint4));

    matches = throttleStage.selectConstraints(matches, msgAttr);
    System.out.println(msg2 + " matches(" + matches.size() + "): " + matches);
    Assert.assertEquals(matches.size(), 2);
    Assert.assertTrue(containsConstraint(matches, constraint1));
    Assert.assertTrue(containsConstraint(matches, constraint3));
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    rebalancePipeline.addStage(new ResourceComputationStage());
    rebalancePipeline.addStage(new CurrentStateComputationStage());
    rebalancePipeline.addStage(new BestPossibleStateCalcStage());
    rebalancePipeline.addStage(new MessageGenerationPhase());
    rebalancePipeline.addStage(new MessageSelectionStage());
    rebalancePipeline.addStage(new MessageThrottleStage());
    rebalancePipeline.addStage(new TaskAssignmentStage());

    // round1: set node0 currentState to OFFLINE and node1 currentState to OFFLINE
    setCurrentState(clusterName,
                    "localhost_0",
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    rebalancePipeline.addStage(new ResourceComputationStage());
    rebalancePipeline.addStage(new CurrentStateComputationStage());
    rebalancePipeline.addStage(new BestPossibleStateCalcStage());
    rebalancePipeline.addStage(new MessageGenerationPhase());
    rebalancePipeline.addStage(new MessageSelectionStage());
    rebalancePipeline.addStage(new MessageThrottleStage());
    rebalancePipeline.addStage(new TaskAssignmentStage());

    // round1: set node0 currentState to OFFLINE and node1 currentState to SLAVE
    setCurrentState(clusterName,
                    "localhost_0",
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    rebalancePipeline.addStage(new ResourceComputationStage());
    rebalancePipeline.addStage(new CurrentStateComputationStage());
    rebalancePipeline.addStage(new BestPossibleStateCalcStage());
    rebalancePipeline.addStage(new MessageGenerationPhase());
    rebalancePipeline.addStage(new MessageSelectionStage());
    rebalancePipeline.addStage(new MessageThrottleStage());
    rebalancePipeline.addStage(new TaskAssignmentStage());

    // round1: set node1 currentState to SLAVE
    setCurrentState(clusterName,
                    "localhost_1",
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      rebalancePipeline.addStage(new CurrentStateComputationStage());
      rebalancePipeline.addStage(new RebalanceIdealStateStage());
      rebalancePipeline.addStage(new BestPossibleStateCalcStage());
      rebalancePipeline.addStage(new MessageGenerationPhase());
      rebalancePipeline.addStage(new MessageSelectionStage());
      rebalancePipeline.addStage(new MessageThrottleStage());
      rebalancePipeline.addStage(new TaskAssignmentStage());

      // external view generation
      Pipeline externalViewPipeline = new Pipeline();
      externalViewPipeline.addStage(new ExternalViewComputeStage());
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    rebalancePipeline.addStage(new ResourceComputationStage());
    rebalancePipeline.addStage(new CurrentStateComputationStage());
    rebalancePipeline.addStage(new BestPossibleStateCalcStage());
    rebalancePipeline.addStage(new MessageGenerationPhase());
    rebalancePipeline.addStage(new MessageSelectionStage());
    rebalancePipeline.addStage(new MessageThrottleStage());
    rebalancePipeline.addStage(new TaskAssignmentStage());

    // round1: set node0 currentState to OFFLINE and node1 currentState to OFFLINE
    setCurrentState(clusterName, "localhost_0", resourceName, resourceName + "_0", "session_0",
        "OFFLINE");
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    rebalancePipeline.addStage(new ResourceComputationStage());
    rebalancePipeline.addStage(new CurrentStateComputationStage());
    rebalancePipeline.addStage(new BestPossibleStateCalcStage());
    rebalancePipeline.addStage(new MessageGenerationPhase());
    rebalancePipeline.addStage(new MessageSelectionStage());
    rebalancePipeline.addStage(new MessageThrottleStage());
    rebalancePipeline.addStage(new TaskAssignmentStage());

    // round1: set node0 currentState to OFFLINE and node1 currentState to SLAVE
    setCurrentState(clusterName, "localhost_0", resourceName, resourceName + "_0", "session_0",
        "OFFLINE");
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    rebalancePipeline.addStage(new ResourceComputationStage());
    rebalancePipeline.addStage(new CurrentStateComputationStage());
    rebalancePipeline.addStage(new BestPossibleStateCalcStage());
    rebalancePipeline.addStage(new MessageGenerationPhase());
    rebalancePipeline.addStage(new MessageSelectionStage());
    rebalancePipeline.addStage(new MessageThrottleStage());
    rebalancePipeline.addStage(new TaskAssignmentStage());

    // round1: set node1 currentState to SLAVE
    setCurrentState(clusterName, "localhost_1", resourceName, resourceName + "_0", "session_1",
        "SLAVE");
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Related Classes of org.apache.helix.controller.stages.MessageThrottleStage

  • org.apache.helix.api.Cluster
  • org.apache.helix.api.Participant
  • org.apache.helix.controller.GenericHelixController
  • org.apache.helix.controller.stages.TestMessageThrottleStage
  • org.apache.helix.controller.stages.TestRebalancePipeline
  • org.apache.helix.model.ClusterConstraints
  • org.apache.helix.model.ClusterConstraints.ConstraintItem
  • org.apache.helix.model.ClusterConstraints.ConstraintValue
  • org.apache.helix.model.ConstraintItem
  • org.apache.helix.model.Resource
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