Package org.apache.helix.manager.zk

Examples of org.apache.helix.manager.zk.ZKHelixDataAccessor

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    startAndVerify(clusterName);
   
    // rename partition name TestDB0_0 tp TestDB0_100
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();

    IdealState idealState = accessor.getProperty(keyBuilder.idealStates("TestDB0"));
   
    List<String> prioList = idealState.getRecord().getListFields().remove("TestDB0_0");
    idealState.getRecord().getListFields().put("TestDB0_100", prioList);
    accessor.setProperty(keyBuilder.idealStates("TestDB0"), idealState);

    boolean result = ClusterStateVerifier.verifyByPolling(
        new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(result);
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    IdealState idealState = new IdealState(destIS);
    idealState.setIdealStateMode("CUSTOMIZED");
    idealState.setReplicas("3");
    idealState.setStateModelDefRef("MasterSlave");
   
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();

    accessor.setProperty(keyBuilder.idealStates("TestDB0"), idealState);

    startAndVerify(clusterName);
   
    Map<String, String> stateMap = idealState.getRecord().getMapFields().remove("TestDB0_0");
    idealState.getRecord().getMapFields().put("TestDB0_100", stateMap);
    accessor.setProperty(keyBuilder.idealStates("TestDB0"), idealState);

    boolean result = ClusterStateVerifier.verifyByPolling(
        new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(result);
    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
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                            3, // replicas
                            "MasterSlave",
                            true); // do rebalance
   
    ZkBaseDataAccessor<ZNRecord> baseAccessor = new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, baseAccessor);
    // String idealStatePath = PropertyPathConfig.getPath(PropertyType.IDEALSTATES, clusterName, "TestDB0");
    Builder keyBuilder = accessor.keyBuilder();
    IdealState idealState = accessor.getProperty(keyBuilder.idealStates("TestDB0"));
    idealState.setBucketSize(1);
    accessor.setProperty(keyBuilder.idealStates("TestDB0"), idealState);

    TestHelper.startController(clusterName,
                               "controller_0",
                               ZK_ADDR,
                               HelixControllerMain.STANDALONE);
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                                 String resource,
                                 String partition)
  {
    // clear status update for error partition so verify() will not fail on old
    // errors
    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();

    LiveInstance liveInstance = accessor.getProperty(keyBuilder.liveInstance(instance));
    accessor.removeProperty(keyBuilder.stateTransitionStatus(instance,
                                                             liveInstance.getSessionId(),
                                                             resource,
                                                             partition));

  }
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                            2, // replicas
                            "MasterSlave",
                            true); // do rebalance
   
    // enable group message
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();
    IdealState idealState = accessor.getProperty(keyBuilder.idealStates("TestDB0"));
    idealState.setGroupMessageMode(true);
    accessor.setProperty(keyBuilder.idealStates("TestDB0"), idealState);

    // registry a message listener so we know how many message generated
    TestZkChildListener listener = new TestZkChildListener();
    _gZkClient.subscribeChildChanges(keyBuilder.messages("localhost_12918").getPath(), listener);
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    {
      participants[i].syncStop();
    }
   
    // enable group message
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();
    IdealState idealState = accessor.getProperty(keyBuilder.idealStates("TestDB0"));
    idealState.setGroupMessageMode(true);
    accessor.setProperty(keyBuilder.idealStates("TestDB0"), idealState);

    // registry a message listener so we know how many message generated
    TestZkChildListener listener = new TestZkChildListener();
    _gZkClient.subscribeChildChanges(keyBuilder.messages("localhost_12918").getPath(), listener);
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    record.getMapField("constraint5").put("INSTANCE", "localhost_12918");
    record.getMapField("constraint5").put("RESOURCE", "TestDB");
    record.getMapField("constraint5").put("CONSTRAINT_VALUE", "5");
    ConstraintItem constraint5 = new ConstraintItem(record.getMapField("constraint5"));

    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();

    accessor.setProperty(keyBuilder.constraint(ConstraintType.MESSAGE_CONSTRAINT.toString()),
                         new ClusterConstraints(record));

    record =
        accessor.getProperty(keyBuilder.constraint(ConstraintType.MESSAGE_CONSTRAINT.toString()))
                .getRecord();
    ClusterConstraints constraint = new ClusterConstraints(record);
    // System.out.println("constraint: " + constraint);

    // message1
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    record.getMapField("constraint2").put("STATE", "MASTER");
    record.getMapField("constraint2").put("RESOURCE", ".*");
    record.getMapField("constraint2").put("CONSTRAINT_VALUE", "2");
    ConstraintItem constraint2 = new ConstraintItem(record.getMapField("constraint2"));

    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor(_gZkClient));
    Builder keyBuilder = accessor.keyBuilder();

    accessor.setProperty(keyBuilder.constraint(ConstraintType.STATE_CONSTRAINT.toString()),
                         new ClusterConstraints(record));

    record =
        accessor.getProperty(keyBuilder.constraint(ConstraintType.STATE_CONSTRAINT.toString()))
                .getRecord();
    ClusterConstraints constraint = new ClusterConstraints(record);
    // System.out.println("constraint: " + constraint);

    // state1: hit rule2
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    @Override
    public boolean verify() {
      try {
        HelixDataAccessor accessor =
            new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(zkClient));

        return ClusterStateVerifier.verifyBestPossAndExtView(accessor, errStates);
      } catch (Exception e) {
        LOG.error("exception in verification", e);
      }
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    }

    @Override
    public boolean verify() {
      try {
        ZKHelixDataAccessor accessor =
            new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(zkClient));

        return ClusterStateVerifier.verifyMasterNbInExtView(accessor);
      } catch (Exception e) {
        LOG.error("exception in verification", e);
      }
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Related Classes of org.apache.helix.manager.zk.ZKHelixDataAccessor

  • org.apache.helix.api.accessor.TestAccessorRecreate
  • org.apache.helix.api.accessor.TestAtomicAccessors
  • org.apache.helix.api.TestNewStages
  • org.apache.helix.controller.restlet.ZkPropertyTransferClient
  • org.apache.helix.controller.restlet.ZNRecordUpdate
  • org.apache.helix.controller.stages.TestMessageThrottleStage
  • org.apache.helix.controller.stages.TestRebalancePipeline
  • org.apache.helix.controller.stages.TestStagesWithLogicalAccessors
  • org.apache.helix.healthcheck.TestAddDropAlert
  • org.apache.helix.healthcheck.TestDummyAlerts
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