Package org.apache.helix.controller.stages

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

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  public void testEmptyCS()
  {
    Map<String, Resource> resourceMap = getResourceMap();
    event.addAttribute(AttributeName.RESOURCES.toString(), resourceMap);
    CurrentStateComputationStage stage = new CurrentStateComputationStage();
    runStage(event, new ReadClusterDataStage());
    runStage(event, stage);
    CurrentStateOutput output =
        event.getAttribute(AttributeName.CURRENT_STATE.toString());
    AssertJUnit.assertEquals(output.getCurrentStateMap("testResourceName",
                                                       new Partition("testResourceName_0"))
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    setupLiveInstances(5);

    event.addAttribute(AttributeName.RESOURCES.toString(), resourceMap);
    CurrentStateComputationStage stage = new CurrentStateComputationStage();
    runStage(event, new ReadClusterDataStage());
    runStage(event, stage);
    CurrentStateOutput output1 =
        event.getAttribute(AttributeName.CURRENT_STATE.toString());
    AssertJUnit.assertEquals(output1.getCurrentStateMap("testResourceName",
                                                        new Partition("testResourceName_0"))
                                    .size(),
                             0);

    // Add a state transition messages
    Message message = new Message(Message.MessageType.STATE_TRANSITION, "msg1");
    message.setFromState("OFFLINE");
    message.setToState("SLAVE");
    message.setResourceName("testResourceName");
    message.setPartitionName("testResourceName_1");
    message.setTgtName("localhost_3");
    message.setTgtSessionId("session_3");

    Builder keyBuilder = accessor.keyBuilder();
    accessor.setProperty(keyBuilder.message("localhost_" + 3, message.getId()), message);

    runStage(event, new ReadClusterDataStage());
    runStage(event, stage);
    CurrentStateOutput output2 =
        event.getAttribute(AttributeName.CURRENT_STATE.toString());
    String pendingState =
        output2.getPendingState("testResourceName",
                                new Partition("testResourceName_1"),
                                "localhost_3");
    AssertJUnit.assertEquals(pendingState, "SLAVE");

    ZNRecord record1 = new ZNRecord("testResourceName");
    // Add a current state that matches sessionId and one that does not match
    CurrentState stateWithLiveSession = new CurrentState(record1);
    stateWithLiveSession.setSessionId("session_3");
    stateWithLiveSession.setStateModelDefRef("MasterSlave");
    stateWithLiveSession.setState("testResourceName_1", "OFFLINE");
    ZNRecord record2 = new ZNRecord("testResourceName");
    CurrentState stateWithDeadSession = new CurrentState(record2);
    stateWithDeadSession.setSessionId("session_dead");
    stateWithDeadSession.setStateModelDefRef("MasterSlave");
    stateWithDeadSession.setState("testResourceName_1", "MASTER");

    accessor.setProperty(keyBuilder.currentState("localhost_3",
                                                 "session_3",
                                                 "testResourceName"),
                         stateWithLiveSession);
    accessor.setProperty(keyBuilder.currentState("localhost_3",
                                                 "session_dead",
                                                 "testResourceName"),
                         stateWithDeadSession);
    runStage(event, new ReadClusterDataStage());
    runStage(event, stage);
    CurrentStateOutput output3 =
        event.getAttribute(AttributeName.CURRENT_STATE.toString());
    String currentState =
        output3.getCurrentState("testResourceName",
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    if (controllerVersion != null)
    {
      ((Mocks.MockManager)manager).setVersion(controllerVersion);
    }
    event.addAttribute("helixmanager", manager);
    runStage(event, new ReadClusterDataStage());
  }
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    synchronized (GenericHelixController.class) {
      PipelineRegistry registry = new PipelineRegistry();

      // cluster data cache refresh
      Pipeline dataRefresh = new Pipeline();
      dataRefresh.addStage(new ReadClusterDataStage());

      // rebalance pipeline
      Pipeline rebalancePipeline = new Pipeline();
      rebalancePipeline.addStage(new ResourceComputationStage());
      rebalancePipeline.addStage(new CurrentStateComputationStage());
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    });
    setupStateModel(clusterName);

    // cluster data cache refresh pipeline
    Pipeline dataRefresh = new Pipeline();
    dataRefresh.addStage(new ReadClusterDataStage());

    // rebalance pipeline
    Pipeline rebalancePipeline = new Pipeline();
    rebalancePipeline.addStage(new ResourceComputationStage());
    rebalancePipeline.addStage(new CurrentStateComputationStage());
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    });
    setupStateModel(clusterName);

    // cluster data cache refresh pipeline
    Pipeline dataRefresh = new Pipeline();
    dataRefresh.addStage(new ReadClusterDataStage());

    // rebalance pipeline
    Pipeline rebalancePipeline = new Pipeline();
    rebalancePipeline.addStage(new ResourceComputationStage());
    rebalancePipeline.addStage(new CurrentStateComputationStage());
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    });
    setupStateModel(clusterName);

    // cluster data cache refresh pipeline
    Pipeline dataRefresh = new Pipeline();
    dataRefresh.addStage(new ReadClusterDataStage());

    // rebalance pipeline
    Pipeline rebalancePipeline = new Pipeline();
    rebalancePipeline.addStage(new ResourceComputationStage());
    rebalancePipeline.addStage(new CurrentStateComputationStage());
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    Map<String, Resource> resourceMap = getResourceMap();
    CurrentStateOutput currentStateOutput = new CurrentStateOutput();
    event.addAttribute(AttributeName.RESOURCES.toString(), resourceMap);
    event.addAttribute(AttributeName.CURRENT_STATE.toString(), currentStateOutput);

    ReadClusterDataStage stage1 = new ReadClusterDataStage();
    runStage(event, stage1);
    BestPossibleStateCalcStage stage2 = new BestPossibleStateCalcStage();
    runStage(event, stage2);

    BestPossibleStateOutput output =
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    if (minSupportedParticipantVersion != null) {
      manager.getProperties().getProperties()
          .put("minimum_supported_version.participant", minSupportedParticipantVersion);
    }
    event.addAttribute("helixmanager", manager);
    runStage(event, new ReadClusterDataStage());
  }
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    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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Related Classes of org.apache.helix.controller.stages.ReadClusterDataStage

  • org.apache.helix.api.accessor.ClusterAccessor
  • org.apache.helix.api.Cluster
  • org.apache.helix.api.id.ClusterId
  • org.apache.helix.controller.context.ControllerContextProvider
  • org.apache.helix.controller.GenericHelixController
  • org.apache.helix.controller.stages.TestBestPossibleStateCalcStage
  • org.apache.helix.controller.stages.TestCompatibilityCheckStage
  • org.apache.helix.controller.stages.TestCurrentStateComputationStage
  • org.apache.helix.controller.stages.TestMessageThrottleStage
  • org.apache.helix.controller.stages.TestRebalancePipeline
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