Package org.apache.helix.model

Examples of org.apache.helix.model.LiveInstance

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    // 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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  @Test
  public void testMasterXfer() {
    System.out.println("START testMasterXfer at " + new Date(System.currentTimeMillis()));

    Map<String, LiveInstance> liveInstances = new HashMap<String, LiveInstance>();
    liveInstances.put("localhost_0", new LiveInstance("localhost_0"));
    liveInstances.put("localhost_1", new LiveInstance("localhost_1"));

    Map<String, String> currentStates = new HashMap<String, String>();
    currentStates.put("localhost_0", "SLAVE");
    currentStates.put("localhost_1", "MASTER");
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  public void testMasterXferAfterMasterResume() {
    System.out.println("START testMasterXferAfterMasterResume at "
        + new Date(System.currentTimeMillis()));

    Map<String, LiveInstance> liveInstances = new HashMap<String, LiveInstance>();
    liveInstances.put("localhost_0", new LiveInstance("localhost_0"));
    liveInstances.put("localhost_1", new LiveInstance("localhost_1"));

    Map<String, String> currentStates = new HashMap<String, String>();
    currentStates.put("localhost_0", "SLAVE");
    currentStates.put("localhost_1", "SLAVE");
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      final Map<String, Map<String, String>> mapResult = new HashMap<String, Map<String, String>>();
      ClusterDataCache cache = new ClusterDataCache();
      MockAccessor accessor = new MockAccessor();
      Builder keyBuilder = accessor.keyBuilder();
      for (String node : _liveNodes) {
        LiveInstance liveInstance = new LiveInstance(node);
        liveInstance.setSessionId("testSession");
        accessor.setProperty(keyBuilder.liveInstance(node), liveInstance);
      }
      cache.refresh(accessor);
      for (String partition : _partitions) {
        List<String> preferenceList = listResult.get(partition);
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    // set live instances
    record = new ZNRecord("localhost_0");
    if (participantVersion != null) {
      record.setSimpleField(LiveInstanceProperty.HELIX_VERSION.toString(), participantVersion);
    }
    LiveInstance liveInstance = new LiveInstance(record);
    liveInstance.setSessionId("session_0");
    accessor.setProperty(keyBuilder.liveInstance("localhost_0"), liveInstance);

    if (controllerVersion != null) {
      ((Mocks.MockManager) manager).setVersion(controllerVersion);
    }
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      idealStates.add(idealState);
    }
    // ADD A LIVE INSTANCE WITH A CURRENT STATE THAT CONTAINS RESOURCE WHICH NO
    // LONGER EXISTS IN IDEALSTATE
    String instanceName = "localhost_" + 3;
    LiveInstance liveInstance = new LiveInstance(instanceName);
    String sessionId = UUID.randomUUID().toString();
    liveInstance.setSessionId(sessionId);

    HelixDataAccessor accessor = manager.getHelixDataAccessor();
    Builder keyBuilder = accessor.keyBuilder();
    accessor.setProperty(keyBuilder.liveInstance(instanceName), liveInstance);
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  }

  protected void setupLiveInstances(int numLiveInstances) {
    // setup liveInstances
    for (int i = 0; i < numLiveInstances; i++) {
      LiveInstance liveInstance = new LiveInstance("localhost_" + i);
      liveInstance.setSessionId("session_" + i);

      Builder keyBuilder = accessor.keyBuilder();
      accessor.setProperty(keyBuilder.liveInstance("localhost_" + i), liveInstance);
    }
  }
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    ZKHelixManager manager =
        new ZKHelixManager(clusterName, "localhost_0", InstanceType.PARTICIPANT, ZK_ADDR);
    manager.connect();
    HelixDataAccessor accessor = manager.getHelixDataAccessor();

    LiveInstance liveInstance =
        accessor.getProperty(accessor.keyBuilder().liveInstance("localhost_0"));
    Assert.assertTrue(liveInstance.getRecord().getListFields().size() == 0);
    Assert.assertTrue(liveInstance.getRecord().getMapFields().size() == 0);
    Assert.assertTrue(liveInstance.getRecord().getSimpleFields().size() == 3);

    manager = new ZKHelixManager(clusterName, "localhost_1", InstanceType.PARTICIPANT, ZK_ADDR);
    manager.setLiveInstanceInfoProvider(new provider(false));

    manager.connect();
    accessor = manager.getHelixDataAccessor();

    liveInstance = accessor.getProperty(accessor.keyBuilder().liveInstance("localhost_1"));
    Assert.assertTrue(liveInstance.getRecord().getListFields().size() == 1);
    Assert.assertTrue(liveInstance.getRecord().getMapFields().size() == 1);
    Assert.assertTrue(liveInstance.getRecord().getSimpleFields().size() == 4);

    manager = new ZKHelixManager(clusterName, "localhost_2", InstanceType.PARTICIPANT, ZK_ADDR);
    manager.setLiveInstanceInfoProvider(new provider(true));

    manager.connect();
    accessor = manager.getHelixDataAccessor();

    liveInstance = accessor.getProperty(accessor.keyBuilder().liveInstance("localhost_2"));
    Assert.assertTrue(liveInstance.getRecord().getListFields().size() == 1);
    Assert.assertTrue(liveInstance.getRecord().getMapFields().size() == 1);
    Assert.assertTrue(liveInstance.getRecord().getSimpleFields().size() == 5);
    Assert.assertFalse(liveInstance.getSessionId().equals("value"));
    Assert.assertFalse(liveInstance.getLiveInstance().equals("value"));

    // //////////////////////////////////

    MockParticipantManager manager2 =
        new MockParticipantManager(ZK_ADDR, clusterName, "localhost_3");

    manager2.setLiveInstanceInfoProvider(new provider(true));

    manager2.connect();
    accessor = manager2.getHelixDataAccessor();

    liveInstance = accessor.getProperty(accessor.keyBuilder().liveInstance("localhost_3"));
    Assert.assertTrue(liveInstance.getRecord().getListFields().size() == 1);
    Assert.assertTrue(liveInstance.getRecord().getMapFields().size() == 1);
    Assert.assertTrue(liveInstance.getRecord().getSimpleFields().size() == 5);
    Assert.assertFalse(liveInstance.getSessionId().equals("value"));
    Assert.assertFalse(liveInstance.getLiveInstance().equals("value"));
    String sessionId = liveInstance.getSessionId();

    ZkTestHelper.expireSession(manager2.getZkClient());
    Thread.sleep(1000);

    liveInstance = accessor.getProperty(accessor.keyBuilder().liveInstance("localhost_3"));
    Assert.assertTrue(liveInstance.getRecord().getListFields().size() == 1);
    Assert.assertTrue(liveInstance.getRecord().getMapFields().size() == 1);
    Assert.assertTrue(liveInstance.getRecord().getSimpleFields().size() == 5);
    Assert.assertFalse(liveInstance.getSessionId().equals("value"));
    Assert.assertFalse(liveInstance.getLiveInstance().equals("value"));
    Assert.assertFalse(sessionId.equals(liveInstance.getSessionId()));

    System.out.println("END " + className + ".testLiveInstanceInfoProvider() at "
        + new Date(System.currentTimeMillis()));
  }
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    // Update data in the live instance node, should trigger another live instance change
    // event
    HelixDataAccessor helixDataAccessor = manager.getHelixDataAccessor();
    PropertyKey propertyKey =
        helixDataAccessor.keyBuilder().liveInstance(manager.getInstanceName());
    LiveInstance instance = helixDataAccessor.getProperty(propertyKey);

    Map<String, String> map = new TreeMap<String, String>();
    map.put("k1", "v1");
    instance.getRecord().setMapField("test", map);
    Assert.assertTrue(helixDataAccessor.updateProperty(propertyKey, instance),
        "Failed to update live instance node");

    instances = changeList.poll(1, TimeUnit.SECONDS);
    Assert.assertNotNull(instances, "Expecting a list of live instance");
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  }

  private List<LiveInstance> deepCopy(List<LiveInstance> instances) {
    List<LiveInstance> result = new ArrayList<LiveInstance>();
    for (LiveInstance instance : instances) {
      result.add(new LiveInstance(instance.getRecord()));
    }
    return result;
  }
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Related Classes of org.apache.helix.model.LiveInstance

  • org.apache.helix.api.accessor.ClusterAccessor
  • org.apache.helix.api.accessor.ControllerAccessor
  • org.apache.helix.api.accessor.ParticipantAccessor
  • org.apache.helix.controller.GenericHelixController
  • org.apache.helix.controller.stages.BaseStageTest
  • org.apache.helix.controller.stages.ClusterDataCache
  • org.apache.helix.controller.stages.TaskAssignmentStage
  • org.apache.helix.controller.stages.TestCompatibilityCheckStage
  • org.apache.helix.controller.stages.TestMsgSelectionStage
  • org.apache.helix.controller.stages.TestResourceComputationStage
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