Package com.linkedin.helix.model

Examples of com.linkedin.helix.model.IdealState

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  @Test ()
  public void testRemove()
  {
    String path = PropertyPathConfig.getPath(PropertyType.IDEALSTATES, _clusterName, resource);
    IdealState idealState = new IdealState(resource);
    idealState.setIdealStateMode(IdealStateModeProperty.AUTO.toString());

    _zkClient.delete(path);
    _zkClient.createPersistent(new File(path).getParent(), true);
    _zkClient.createPersistent(path, idealState.getRecord());
    boolean success = _accessor.removeProperty(PropertyType.IDEALSTATES, resource);
    AssertJUnit.assertTrue(success);
    AssertJUnit.assertFalse(_zkClient.exists(path));
    IdealState idealStateRead = _accessor.getProperty(IdealState.class, PropertyType.IDEALSTATES, resource);
    AssertJUnit.assertNull(idealStateRead);

  }
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  public void removeResourceProperty(String clusterName,
                                     String resourceName,
                                     String propertyKey)
  {
    IdealState idealState = _admin.getResourceIdealState(clusterName, resourceName);
    if (idealState == null)
    {
      throw new HelixException("Resource: " + resourceName + " has NOT been added yet");
    }
    idealState.getRecord().getSimpleFields().remove(propertyKey);
    _admin.setResourceIdealState(clusterName, resourceName, idealState);
  }
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  @Test ()
  public void testUpdate()
  {
    String path = PropertyPathConfig.getPath(PropertyType.IDEALSTATES, _clusterName, resource);
    IdealState idealState = new IdealState(resource);
    idealState.setIdealStateMode(IdealStateModeProperty.AUTO.toString());

    _zkClient.delete(path);
    _zkClient.createPersistent(new File(path).getParent(), true);
    _zkClient.createPersistent(path, idealState.getRecord());
    Stat stat = _zkClient.getStat(path);

    idealState.setIdealStateMode(IdealStateModeProperty.CUSTOMIZED.toString());

    boolean success = _accessor.updateProperty(PropertyType.IDEALSTATES, idealState, resource);
    AssertJUnit.assertTrue(success);
    AssertJUnit.assertTrue(_zkClient.exists(path));
    ZNRecord value = _zkClient.readData(path);
    AssertJUnit.assertEquals(idealState.getRecord(), value);
    Stat newstat = _zkClient.getStat(path);

    AssertJUnit.assertEquals(stat.getCtime(), newstat.getCtime());
    AssertJUnit.assertNotSame(stat.getMtime(), newstat.getMtime());
    AssertJUnit.assertTrue(stat.getMtime() < newstat.getMtime());
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    accessor.setProperty(keyBuilder.currentState("localhost_8900", testHelixManager.getSessionId(), curState.getId()), curState);
    Thread.sleep(100);
    AssertJUnit.assertTrue(testListener.currentStateChangeReceived);
    testListener.Reset();

    IdealState idealState = new IdealState("db-1234");
    idealState.setNumPartitions(400);
    idealState.setReplicas(Integer.toString(2));
    idealState.setStateModelDefRef("StateModeldef");
    accessor.setProperty(keyBuilder.idealStates("db-1234"), idealState);
    Thread.sleep(100);
    AssertJUnit.assertTrue(testListener.idealStateChangeReceived);
    testListener.Reset();
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    ZKHelixDataAccessor accessor =
        new ZKHelixDataAccessor(className, new ZkBaseDataAccessor(zkClient));
    Builder keyBuilder = accessor.keyBuilder();

//    ZNRecord statusUpdates = new ZNRecord("statusUpdates");
    IdealState idealState = new IdealState("currentState");
    idealState.setStateModelDefRef("MasterSlave");
    idealState.setIdealStateMode("AUTO");
    idealState.setNumPartitions(10);

    for (int i = 0; i < 1024; i++)
    {
      idealState.getRecord().setSimpleField(i + "", bufStr);
    }
    boolean succeed =
        accessor.setProperty(keyBuilder.idealStates("TestDB_1"),
                                                              idealState);
    Assert.assertFalse(succeed);
    HelixProperty property =
        accessor.getProperty(keyBuilder.idealStates("TestDB_1"));
    Assert.assertNull(property);

    // legal sized data gets written to zk
    idealState.getRecord().getSimpleFields().clear();
    idealState.setStateModelDefRef("MasterSlave");
    idealState.setIdealStateMode("AUTO");
    idealState.setNumPartitions(10);

    for (int i = 0; i < 900; i++)
    {
      idealState.getRecord().setSimpleField(i + "", bufStr);
    }
    succeed =
        accessor.setProperty(keyBuilder.idealStates("TestDB_2"),
                                                              idealState);
    Assert.assertTrue(succeed);
    record =
        accessor.getProperty(keyBuilder.idealStates("TestDB_2")).getRecord();
    Assert.assertTrue(serializer.serialize(record).length > 900 * 1024);

    // oversized data should not update existing data on zk
    idealState.getRecord().getSimpleFields().clear();
    idealState.setStateModelDefRef("MasterSlave");
    idealState.setIdealStateMode("AUTO");
    idealState.setNumPartitions(10);

    for (int i = 900; i < 1024; i++)
    {
      idealState.getRecord().setSimpleField(i + "", bufStr);
    }
    // System.out.println("record: " + idealState.getRecord());
    succeed =
        accessor.updateProperty(keyBuilder.idealStates("TestDB_2"),
                                                                 idealState);
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    {
      String storageNodeName = PARTICIPANT_PREFIX + ":" + (START_PORT + i);
      _setupTool.addInstanceToCluster(CLUSTER_NAME, storageNodeName);
    }
    _setupTool.rebalanceStorageCluster(CLUSTER_NAME, TEST_DB, 3);
    IdealState idealState = _setupTool.getClusterManagementTool().getResourceIdealState(CLUSTER_NAME, TEST_DB);
    idealState.getRecord().setSimpleField(IdealStateProperty.REBALANCE_TIMER_PERIOD.toString(), "500");

    String scnTableQuery = "SELECT T1.instance as instance, T1.mapField as partition, T1.gen as gen, T1.seq as seq " +
        "FROM explodeMap(`INSTANCES/*/HEALTHREPORT/scnTable`) AS T1" +
        " JOIN LIVEINSTANCES as T2 using (T1.instance, T2.id)";

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      _setupTool.addInstanceToCluster(CLUSTER_NAME, storageNodeName);
    }
    _setupTool.rebalanceStorageCluster(CLUSTER_NAME, TEST_DB, 3);
   
    // Set the timeout values
    IdealState idealState = _setupTool.getClusterManagementTool().getResourceIdealState(CLUSTER_NAME, TEST_DB);
    String stateTransition = "SLAVE" + "-" + "MASTER" + "_" + Message.Attributes.TIMEOUT;
    idealState.getRecord().setSimpleField(stateTransition, "300");
   
    String command = "-zkSvr " + ZK_ADDR + " -addResourceProperty "+ CLUSTER_NAME + " " + TEST_DB + " " + stateTransition + " 200";
    ClusterSetup.processCommandLineArgs(command.split(" "));
  }
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  @Test
  public void testStateTransitionTimeOut() throws Exception
  {
    Map<String, SleepStateModelFactory> factories = new HashMap<String, SleepStateModelFactory>();
    MockParticipant[] participants = new MockParticipant[NODE_NR];
    IdealState idealState = _setupTool.getClusterManagementTool().getResourceIdealState(CLUSTER_NAME, TEST_DB);
    for (int i = 0; i < NODE_NR; i++)
    {
      String instanceName = PARTICIPANT_PREFIX + "_" + (START_PORT + i);
      SleepStateModelFactory factory = new SleepStateModelFactory(1000);
      factories.put(instanceName, factory);
      for(String p : idealState.getPartitionSet())
      {
        if(idealState.getPreferenceList(p).get(0).equals(instanceName))
        {
          factory.addPartition(p);
        }
      }
     
      participants[i] = new MockParticipant(factory, CLUSTER_NAME, instanceName, ZK_ADDR, null);
      participants[i].syncStart();
    }
    String controllerName = CONTROLLER_PREFIX + "_0";
    StartCMResult startResult =
        TestHelper.startController(CLUSTER_NAME,
                                   controllerName,
                                   ZK_ADDR,
                                   HelixControllerMain.STANDALONE);
    _startCMResultMap.put(controllerName, startResult);
    boolean result =
        ClusterStateVerifier.verifyByZkCallback(new MasterNbInExtViewVerifier(ZK_ADDR,
                                                                              CLUSTER_NAME));
    Assert.assertTrue(result);
    HelixDataAccessor accessor = participants[0].getManager().getHelixDataAccessor();
   
    Builder kb = accessor.keyBuilder();
    ExternalView ev = accessor.getProperty(kb.externalView(TEST_DB));
    for(String p : idealState.getPartitionSet())
    {
      String idealMaster = idealState.getPreferenceList(p).get(0);
      Assert.assertTrue(ev.getStateMap(p).get(idealMaster).equals("ERROR"));
     
      TimeOutStateModel model = factories.get(idealMaster).getStateModel(p);
      Assert.assertEquals(model._errorCallcount , 1);
      Assert.assertEquals(model._error.getCode(), ErrorCode.TIMEOUT);
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      StateModelDefinition stateModelDef =
          cache.getStateModelDef(resource.getStateModelDefRef());

      Map<String, Integer> stateTransitionPriorities =
          getStateTransitionPriorityMap(stateModelDef);
      IdealState idealState = cache.getIdealState(resourceName);
      Map<String, Bounds> stateConstraints =
          computeStateConstraints(stateModelDef, idealState, cache);

      for (Partition partition : resource.getPartitions())
      {
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  private static List<Message> computeMessagesForSimpleTransition(ZNRecord idealStateRecord)
  {
    List<Message> msgList = new ArrayList<Message>();

    IdealState idealState = new IdealState(idealStateRecord);
    for (String stateUnitKey : idealState.getPartitionSet())
    {
      Map<String, String> instanceStateMap;
      instanceStateMap = idealState.getInstanceStateMap(stateUnitKey);
    }

    return msgList;
  }
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Related Classes of com.linkedin.helix.model.IdealState

  • com.linkedin.helix.controller.stages.BaseStageTest
  • com.linkedin.helix.controller.stages.BestPossibleStateCalcStage
  • com.linkedin.helix.controller.stages.MessageGenerationPhase
  • com.linkedin.helix.controller.stages.MessageSelectionStage
  • com.linkedin.helix.controller.stages.TestCompatibilityCheckStage
  • com.linkedin.helix.controller.stages.TestResourceComputationStage
  • com.linkedin.helix.controller.TestControllerRebalancingTimer
  • com.linkedin.helix.controller.TestControllerRebalancingTimerPeriod
  • com.linkedin.helix.EspressoStorageMockNode
  • com.linkedin.helix.integration.FileCMTestBase
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