Package org.apache.helix

Examples of org.apache.helix.HelixDataAccessor

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    _setupTool.getClusterManagementTool().setConfig(scope, properties);
   
    HealthStatsAggregationTask task = new HealthStatsAggregationTask(_startCMResultMap.get(controllerName)._manager);
    task.run();
    Thread.sleep(100);
    HelixDataAccessor helixDataAccessor = manager.getHelixDataAccessor();
    Builder keyBuilder = helixDataAccessor.keyBuilder();

    AlertHistory history = manager.getHelixDataAccessor().getProperty(keyBuilder.alertHistory());
    //
    Assert.assertEquals(history, null);
   
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    _setupTool.getClusterManagementTool().addAlert(CLUSTER_NAME, _alertStr1);
    _setupTool.getClusterManagementTool().addAlert(CLUSTER_NAME, _alertStr2);

    int historySize = 0;
    HelixDataAccessor helixDataAccessor = manager.getHelixDataAccessor();
    Builder keyBuilder = helixDataAccessor.keyBuilder();
    HelixProperty property = helixDataAccessor.getProperty(keyBuilder.alertHistory());
    ZNRecord history = null;
    if(property != null)
    {
      history = property.getRecord();
      historySize = property.getRecord().getMapFields().size();
    }
   
    HealthStatsAggregationTask task = new HealthStatsAggregationTask(_startCMResultMap.get(controllerName)._manager);
    task.run();
    Thread.sleep(100);
   
   
    history = helixDataAccessor.getProperty(keyBuilder.alertHistory()).getRecord();
    //
    Assert.assertEquals(history.getMapFields().size(), 1 + historySize);
    TreeMap<String, Map<String, String>> recordMap = new TreeMap<String, Map<String, String>>();
    recordMap.putAll( history.getMapFields());
    Map<String, String> lastRecord = recordMap.firstEntry().getValue();
    Assert.assertTrue(lastRecord.size() == 4);
    Assert.assertTrue(lastRecord.get("(localhost_12920.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
    Assert.assertTrue(lastRecord.get("(localhost_12919.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
    Assert.assertTrue(lastRecord.get("(localhost_12921.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
    Assert.assertTrue(lastRecord.get("(localhost_12921.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
   
    setHealthData(metrics1, metrics2);
    task.run();
    Thread.sleep(100);
    history = helixDataAccessor.getProperty(keyBuilder.alertHistory()).getRecord();
    // no change
    Assert.assertEquals(history.getMapFields().size(), 1 + historySize);
    recordMap = new TreeMap<String, Map<String, String>>();
    recordMap.putAll( history.getMapFields());
    lastRecord = recordMap.firstEntry().getValue();
    Assert.assertTrue(lastRecord.size() == 4);
    Assert.assertTrue(lastRecord.get("(localhost_12920.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
    Assert.assertTrue(lastRecord.get("(localhost_12919.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
    Assert.assertTrue(lastRecord.get("(localhost_12921.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
    Assert.assertTrue(lastRecord.get("(localhost_12921.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
   
    int [] metrics3 = {21, 44, 22, 14, 16};
    int [] metrics4 = {122, 115, 222, 41,16};
    setHealthData(metrics3, metrics4);
    task.run();
    Thread.sleep(100);
    history = helixDataAccessor.getProperty(keyBuilder.alertHistory()).getRecord();
    // new delta should be recorded
    Assert.assertEquals(history.getMapFields().size(), 2 + historySize);
    recordMap = new TreeMap<String, Map<String, String>>();
    recordMap.putAll( history.getMapFields());
    lastRecord = recordMap.lastEntry().getValue();
    Assert.assertEquals(lastRecord.size(), 6);
    Assert.assertTrue(lastRecord.get("(localhost_12918.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
    Assert.assertTrue(lastRecord.get("(localhost_12921.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("OFF"));
    Assert.assertTrue(lastRecord.get("(localhost_12920.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
    Assert.assertTrue(lastRecord.get("(localhost_12921.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("OFF"));
    Assert.assertTrue(lastRecord.get("(localhost_12918.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
    Assert.assertTrue(lastRecord.get("(localhost_12919.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
   
    int [] metrics5 = {0, 0, 0, 0, 0};
    int [] metrics6 = {0, 0, 0, 0,0};
    setHealthData(metrics5, metrics6);
    task.run();
    Thread.sleep(500);
    history = helixDataAccessor.getProperty(keyBuilder.alertHistory()).getRecord();
    // reset everything
    Assert.assertEquals(history.getMapFields().size(), 3 + historySize);
    recordMap = new TreeMap<String, Map<String, String>>();
    recordMap.putAll( history.getMapFields());
    lastRecord = recordMap.lastEntry().getValue();
    Assert.assertTrue(lastRecord.size() == 6);
    Assert.assertTrue(lastRecord.get("(localhost_12918.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("OFF"));
    Assert.assertTrue(lastRecord.get("(localhost_12920.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("OFF"));
    Assert.assertTrue(lastRecord.get("(localhost_12920.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("OFF"));
    Assert.assertTrue(lastRecord.get("(localhost_12919.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("OFF"));
    Assert.assertTrue(lastRecord.get("(localhost_12918.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("OFF"));
    Assert.assertTrue(lastRecord.get("(localhost_12919.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("OFF"));
   
    // Size of the history should be 30
    for(int i = 0;i < 27; i++)
    {
      int x = i % 2;
      int y = (i+1) % 2;
      int[] metricsx = {19 + 3*x, 19 + 3*y, 19 + 4*x, 18+4*y, 17+5*y};
      int[] metricsy = {99 + 3*x, 99 + 3*y, 98 + 4*x, 98+4*y, 97+5*y};
     
      setHealthData(metricsx, metricsy);
      task.run();
      Thread.sleep(100);
      history = helixDataAccessor.getProperty(keyBuilder.alertHistory()).getRecord();
     
      Assert.assertEquals(history.getMapFields().size(), Math.min(3 + i + 1 + historySize, 30));
      recordMap = new TreeMap<String, Map<String, String>>();
      recordMap.putAll( history.getMapFields());
      lastRecord = recordMap.lastEntry().getValue();
      if(i == 0)
      {
        Assert.assertTrue(lastRecord.size() == 6);
        Assert.assertTrue(lastRecord.get("(localhost_12922.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
        Assert.assertTrue(lastRecord.get("(localhost_12922.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
        Assert.assertTrue(lastRecord.get("(localhost_12919.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
        Assert.assertTrue(lastRecord.get("(localhost_12921.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
        Assert.assertTrue(lastRecord.get("(localhost_12921.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
        Assert.assertTrue(lastRecord.get("(localhost_12919.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
      }
      else
      {
        System.out.println(lastRecord.size());
        Assert.assertEquals(lastRecord.size() , 10);
        if(x == 0)
        {
          Assert.assertTrue(lastRecord.get("(localhost_12922.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
          Assert.assertTrue(lastRecord.get("(localhost_12922.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
          Assert.assertTrue(lastRecord.get("(localhost_12920.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("OFF"));
          Assert.assertTrue(lastRecord.get("(localhost_12918.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("OFF"));
          Assert.assertTrue(lastRecord.get("(localhost_12919.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
          Assert.assertTrue(lastRecord.get("(localhost_12921.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
          Assert.assertTrue(lastRecord.get("(localhost_12920.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("OFF"));
          Assert.assertTrue(lastRecord.get("(localhost_12921.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
          Assert.assertTrue(lastRecord.get("(localhost_12918.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("OFF"));
          Assert.assertTrue(lastRecord.get("(localhost_12919.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
        }
        else
        {
          Assert.assertTrue(lastRecord.get("(localhost_12922.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("OFF"));
          Assert.assertTrue(lastRecord.get("(localhost_12922.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("OFF"));
          Assert.assertTrue(lastRecord.get("(localhost_12920.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
          Assert.assertTrue(lastRecord.get("(localhost_12918.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("ON"));
          Assert.assertTrue(lastRecord.get("(localhost_12919.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("OFF"));
          Assert.assertTrue(lastRecord.get("(localhost_12921.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("OFF"));
          Assert.assertTrue(lastRecord.get("(localhost_12920.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
          Assert.assertTrue(lastRecord.get("(localhost_12921.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("OFF"));
          Assert.assertTrue(lastRecord.get("(localhost_12918.TestStat@DB#db1.TestMetric2)GREATER(100)").equals("ON"));
          Assert.assertTrue(lastRecord.get("(localhost_12919.TestStat@DB#db1.TestMetric1)GREATER(20)").equals("OFF"));
        }
      }
    }
    // size limit is 30
    for(int i = 0;i < 10; i++)
    {
      int x = i % 2;
      int y = (i+1) % 2;
      int[] metricsx = {19 + 3*x, 19 + 3*y, 19 + 4*x, 18+4*y, 17+5*y};
      int[] metricsy = {99 + 3*x, 99 + 3*y, 98 + 4*x, 98+4*y, 97+5*y};
     
      setHealthData(metricsx, metricsy);
      task.run();
      Thread.sleep(100);
      history = helixDataAccessor.getProperty(keyBuilder.alertHistory()).getRecord();
     
      Assert.assertEquals(history.getMapFields().size(), 30);
      recordMap = new TreeMap<String, Map<String, String>>();
      recordMap.putAll( history.getMapFields());
      lastRecord = recordMap.lastEntry().getValue();
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        & testListener.currentStateChangeReceived & testListener.externalViewChangeReceived
        & testListener.idealStateChangeReceived & testListener.liveInstanceChangeReceived
        & testListener.messageChangeReceived);

    testListener.Reset();
    HelixDataAccessor accessor = testHelixManager.getHelixDataAccessor();
    Builder keyBuilder = accessor.keyBuilder();
   
    ExternalView extView = new ExternalView("db-12345");
    accessor.setProperty(keyBuilder.externalView("db-12345"), extView);
    Thread.sleep(100);
    AssertJUnit.assertTrue(testListener.externalViewChangeReceived);
    testListener.Reset();

    CurrentState curState = new CurrentState("db-12345");
    curState.setSessionId("sessionId");
    curState.setStateModelDefRef("StateModelDef");
    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();

    // dummyRecord = new ZNRecord("db-12345");
    // dataAccessor.setProperty(PropertyType.IDEALSTATES, idealState, "db-12345"
    // );
    // Thread.sleep(100);
    // AssertJUnit.assertTrue(testListener.idealStateChangeReceived);
    // testListener.Reset();

    // dummyRecord = new ZNRecord("localhost:8900");
    // List<ZNRecord> recList = new ArrayList<ZNRecord>();
    // recList.add(dummyRecord);

    testListener.Reset();
    Message message = new Message(MessageType.STATE_TRANSITION, UUID.randomUUID().toString());
    message.setTgtSessionId("*");
    message.setResourceName("testResource");
    message.setPartitionName("testPartitionKey");
    message.setStateModelDef("MasterSlave");
    message.setToState("toState");
    message.setFromState("fromState");
    message.setTgtName("testTarget");
    message.setStateModelFactoryName(HelixConstants.DEFAULT_STATE_MODEL_FACTORY);

    accessor.setProperty(keyBuilder.message("localhost_8900", message.getId()), message);
    Thread.sleep(500);
    AssertJUnit.assertTrue(testListener.messageChangeReceived);

    // dummyRecord = new ZNRecord("localhost_9801");
    LiveInstance liveInstance = new LiveInstance("localhost_9801");
    liveInstance.setSessionId(UUID.randomUUID().toString());
    liveInstance.setHelixVersion(UUID.randomUUID().toString());
    accessor.setProperty(keyBuilder.liveInstance("localhost_9801"), liveInstance);
    Thread.sleep(500);
    AssertJUnit.assertTrue(testListener.liveInstanceChangeReceived);
    testListener.Reset();

    // dataAccessor.setNodeConfigs(recList); Thread.sleep(100);
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      // OK
  }

  // verify leader node
  BaseDataAccessor<ZNRecord> baseAccessor = new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
  HelixDataAccessor accessor = new ZKHelixDataAccessor(grandClusterName, baseAccessor);
  LiveInstance controllerLeader = accessor.getProperty(accessor.keyBuilder()
          .controllerLeader());
  Assert.assertNotNull(controllerLeader,
          "controllerLeader should be either controller_9000 or controller_9001");
  Assert.assertTrue(controllerLeader.getInstanceName().startsWith("controller_900"));

  accessor = new ZKHelixDataAccessor(clusterName, baseAccessor);
  LiveInstance leader = accessor.getProperty(accessor.keyBuilder().controllerLeader());
  for (int i = 0; i < 20; i++) {
      if (leader != null) {
    break;
      }
      Thread.sleep(200);
      leader = accessor.getProperty(accessor.keyBuilder().controllerLeader());
  }
  Assert.assertTrue(leader.getInstanceName().startsWith("controller_900"));

  boolean verifyResult = ClusterStateVerifier
          .verifyByZkCallback(new MasterNbInExtViewVerifier(ZK_ADDR, clusterName));
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  ClusterSetup.processCommandLineArgs(command.split("\\s+"));
  Thread.sleep(500);

  // save ideal state
  BaseDataAccessor<ZNRecord> baseAccessor = new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
  HelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, baseAccessor);
  IdealState idealState = accessor.getProperty(accessor.keyBuilder().idealStates("db_11"));
  ZNRecordJsonSerializer serializer = new ZNRecordJsonSerializer();

  String tmpDir = System.getProperty("java.io.tmpdir");
  if (tmpDir == null) {
      tmpDir = "/tmp";
  }
  final String tmpIdealStateFile = tmpDir + "/" + clusterName + "_idealState.log";
  FileWriter fos = new FileWriter(tmpIdealStateFile);
  PrintWriter pw = new PrintWriter(fos);
  pw.write(new String(serializer.serialize(idealState.getRecord())));
  pw.close();

  command = "-zkSvr localhost:2183 -dropResource " + clusterName + " db_11 ";
  ClusterSetup.processCommandLineArgs(command.split("\\s+"));

  boolean verifyResult = ClusterStateVerifier
          .verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
  Assert.assertTrue(verifyResult);

  command = "-zkSvr localhost:2183 -addIdealState " + clusterName + " db_11 "
          + tmpIdealStateFile;
  ClusterSetup.processCommandLineArgs(command.split("\\s+"));

  verifyResult = ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(
          ZK_ADDR, clusterName));
  Assert.assertTrue(verifyResult);

  IdealState idealState2 = accessor.getProperty(accessor.keyBuilder().idealStates("db_11"));
  Assert.assertTrue(idealState2.getRecord().equals(idealState.getRecord()));

  // clean up
  // for (int i = 0; i < 2; i++) {
  // controllers[i].syncStop();
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  command = "-zkSvr localhost:2183 -swapInstance " + clusterName
          + " localhost_1232 localhost_12320";
  ClusterSetup.processCommandLineArgs(command.split("\\s+"));

  BaseDataAccessor<ZNRecord> baseAccessor = new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
  HelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, baseAccessor);
  String path = accessor.keyBuilder().instanceConfig("localhost_1232").getPath();
  Assert.assertFalse(_gZkClient.exists(path), path
          + " should not exist since localhost_1232 has been swapped by localhost_12320");

  System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
    }
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  command = "-zkSvr localhost:2183 -activateCluster " + clusterName + " " + grandClusterName
          + " false";
  ClusterSetup.processCommandLineArgs(command.split("\\s+"));

  BaseDataAccessor<ZNRecord> baseAccessor = new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
  HelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, baseAccessor);
  String path = accessor.keyBuilder().controllerLeader().getPath();
  for (int i = 0; i < 10; i++) {
      Thread.sleep(1000);
      if (!_gZkClient.exists(path)) {
    break;
      }
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  {
    String stat = "window(5)(dbFoo.partition10.latency)";
    _statsHolder.addStat(stat);
    _statsHolder.persistStats();

    HelixDataAccessor accessor = _helixManager.getHelixDataAccessor();
    Builder keyBuilder = accessor.keyBuilder();

    ZNRecord rec = accessor.getProperty(keyBuilder.persistantStat()).getRecord();
    System.out.println("rec: " + rec.toString());
    AssertJUnit.assertTrue(statRecordContains(rec, stat));
    AssertJUnit.assertEquals(1, statsSize(rec));
  }
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    _statsHolder.persistStats();
    String stat2 = "window(5)(dbFoo.partition11.latency)";
    _statsHolder.addStat(stat2);
    _statsHolder.persistStats();

    HelixDataAccessor accessor = _helixManager.getHelixDataAccessor();
    Builder keyBuilder = accessor.keyBuilder();

    ZNRecord rec = accessor.getProperty(keyBuilder.persistantStat()).getRecord();

    System.out.println("rec: " + rec.toString());
    AssertJUnit.assertTrue(statRecordContains(rec, stat1));
    AssertJUnit.assertTrue(statRecordContains(rec, stat2));
    AssertJUnit.assertEquals(2, statsSize(rec));
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    String stat = "window(5)(dbFoo.partition10.latency)";
    _statsHolder.addStat(stat);
    _statsHolder.addStat(stat);
    _statsHolder.persistStats();

    HelixDataAccessor accessor = _helixManager.getHelixDataAccessor();
    Builder keyBuilder = accessor.keyBuilder();

    ZNRecord rec = accessor.getProperty(keyBuilder.persistantStat()).getRecord();

    System.out.println("rec: " + rec.toString());
    AssertJUnit.assertTrue(statRecordContains(rec, stat));
    AssertJUnit.assertEquals(1, statsSize(rec));
  }
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