Package org.apache.helix.mock.controller

Examples of org.apache.helix.mock.controller.ClusterController

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                            3, // replicas
                            "MasterSlave",
                            true); // do rebalance

    // start controller
    ClusterController controller =
        new ClusterController(clusterName, "controller_0", ZK_ADDR);
    controller.syncStart();

    Map<String, Set<String>> errPartitions = new HashMap<String, Set<String>>()
    {
      {
        put("SLAVE-MASTER", TestHelper.setOf("TestDB0_4"));
        put("OFFLINE-SLAVE", TestHelper.setOf("TestDB0_8"));
      }
    };

    // start mock participants
    MockParticipant[] participants = new MockParticipant[n];
    for (int i = 0; i < n; i++)
    {
      String instanceName = "localhost_" + (12918 + i);

      if (i == 0)
      {
        participants[i] =
            new MockParticipant(clusterName,
                                instanceName,
                                ZK_ADDR,
                                new ErrTransition(errPartitions));
      }
      else
      {
        participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR);
      }
      participants[i].syncStart();
    }

    // verify cluster
    Map<String, Map<String, String>> errStateMap =
        new HashMap<String, Map<String, String>>();
    errStateMap.put("TestDB0", new HashMap<String, String>());
    errStateMap.get("TestDB0").put("TestDB0_4", "localhost_12918");
    errStateMap.get("TestDB0").put("TestDB0_8", "localhost_12918");
    boolean result =
        ClusterStateVerifier.verifyByZkCallback((new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                                       clusterName,
                                                                                                       errStateMap)));
    Assert.assertTrue(result, "Cluster verification fails");
   
    // reset node "localhost_12918"
    participants[0].setTransition(null);
    String command =
        "--zkSvr " + ZK_ADDR + " --resetInstance " + clusterName
            + " localhost_12918";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));

    result =
        ClusterStateVerifier.verifyByZkCallback((new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                                       clusterName)));
    Assert.assertTrue(result, "Cluster verification fails");
   
    // clean up
    // wait for all zk callbacks done
    Thread.sleep(1000);
    controller.syncStop();
    for (int i = 0; i < 5; i++)
    {
      participants[i].syncStop();
    }
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                            3, // replicas
                            "MasterSlave",
                            true); // do rebalance

    // start controller
    ClusterController controller =
        new ClusterController(clusterName, "controller_0", ZK_ADDR);
    controller.syncStart();

    Map<String, Set<String>> errPartitions = new HashMap<String, Set<String>>()
    {
      {
        put("SLAVE-MASTER", TestHelper.setOf("TestDB0_4"));
        put("OFFLINE-SLAVE", TestHelper.setOf("TestDB0_8"));
      }
    };

    // start mock participants
    MockParticipant[] participants = new MockParticipant[n];
    for (int i = 0; i < n; i++)
    {
      String instanceName = "localhost_" + (12918 + i);

      if (i == 0)
      {
        participants[i] =
            new MockParticipant(clusterName,
                                instanceName,
                                ZK_ADDR,
                                new ErrTransition(errPartitions));
      }
      else
      {
        participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR);
      }
      participants[i].syncStart();
    }

    // verify cluster
    Map<String, Map<String, String>> errStateMap =
        new HashMap<String, Map<String, String>>();
    errStateMap.put("TestDB0", new HashMap<String, String>());
    errStateMap.get("TestDB0").put("TestDB0_4", "localhost_12918");
    errStateMap.get("TestDB0").put("TestDB0_8", "localhost_12918");
    boolean result =
        ClusterStateVerifier.verifyByZkCallback((new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                                       clusterName,
                                                                                                       errStateMap)));
    Assert.assertTrue(result, "Cluster verification fails");

    // reset a non-exist partition, should throw exception
    try
    {
      String command =
          "--zkSvr " + ZK_ADDR + " --resetPartition " + clusterName
              + " localhost_12918 TestDB0 TestDB0_nonExist";
      ClusterSetup.processCommandLineArgs(command.split("\\s+"));
      Assert.fail("Should throw exception on reset a non-exist partition");
    }
    catch (Exception e)
    {
      // OK
    }

    // reset one error partition
    errPartitions.remove("SLAVE-MASTER");
    participants[0].setTransition(new ErrTransitionWithResetCnt(errPartitions));
    clearStatusUpdate(clusterName, "localhost_12918", "TestDB0", "TestDB0_4");
    _errToOfflineInvoked = 0;
    String command =
        "--zkSvr " + ZK_ADDR + " --resetPartition " + clusterName
            + " localhost_12918 TestDB0 TestDB0_4";

    ClusterSetup.processCommandLineArgs(command.split("\\s+"));
    Thread.sleep(200); // wait reset to be done
    try
    {
      ClusterSetup.processCommandLineArgs(command.split("\\s+"));
      Assert.fail("Should throw exception on reset a partition not in ERROR state");
    }
    catch (Exception e)
    {
      // OK
    }

    errStateMap.get("TestDB0").remove("TestDB0_4");
    result =
        ClusterStateVerifier.verifyByZkCallback((new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                                   clusterName,
                                                                                                   errStateMap)));
    Assert.assertTrue(result, "Cluster verification fails");
    Assert.assertEquals(_errToOfflineInvoked, 1);

    // reset the other error partition
    participants[0].setTransition(new ErrTransitionWithResetCnt(null));
    clearStatusUpdate(clusterName, "localhost_12918", "TestDB0", "TestDB0_8");

    command =
        "--zkSvr " + ZK_ADDR + " --resetPartition " + clusterName
            + " localhost_12918 TestDB0 TestDB0_8";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));

    result =
        ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                                   clusterName));
    Assert.assertTrue(result, "Cluster verification fails");
    Assert.assertEquals(_errToOfflineInvoked, 2, "Should reset 2 partitions");

    // clean up
    // wait for all zk callbacks done
    Thread.sleep(1000);
    controller.syncStop();
    for (int i = 0; i < 5; i++)
    {
      participants[i].syncStop();
    }
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    // registry a message listener so we know how many message generated
    TestZkChildListener listener = new TestZkChildListener();
    _gZkClient.subscribeChildChanges(keyBuilder.messages("localhost_12918").getPath(), listener);

   
    ClusterController controller =
        new ClusterController(clusterName, "controller_0", ZK_ADDR);
    controller.syncStart();

    // start participants
    MockParticipant[] participants = new MockParticipant[n];
    for (int i = 0; i < n; i++)
    {
      String instanceName = "localhost_" + (12918 + i);

      participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
      participants[i].syncStart();
    }

    boolean result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                 clusterName));
    Assert.assertTrue(result);
    Assert.assertTrue(listener._maxNbOfChilds <= 2, "Should get no more than 2 messages (O->S and S->M)");
   
    // clean up
    // wait for all zk callbacks done
    Thread.sleep(1000);
    controller.syncStop();
    for (int i = 0; i < n; i++)
    {
      participants[i].syncStop();
    }
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                            n, // number of nodes
                            2, // replicas
                            "MasterSlave",
                            true); // do rebalance
   
    ClusterController controller =
        new ClusterController(clusterName, "controller_0", ZK_ADDR);
    controller.syncStart();

    // start participants
    MockParticipant[] participants = new MockParticipant[n];
    for (int i = 0; i < n; i++)
    {
      String instanceName = "localhost_" + (12918 + i);

      participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
      participants[i].syncStart();
    }

    boolean result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                 clusterName));
    Assert.assertTrue(result);
   
    // stop all participants
    Thread.sleep(1000);
    for (int i = 0; i < n; i++)
    {
      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);

    // restart all participants
    for (int i = 0; i < n; i++)
    {
      String instanceName = "localhost_" + (12918 + i);

      participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
      participants[i].syncStart();
    }
   
    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                 clusterName));
    Assert.assertTrue(result);
    Assert.assertTrue(listener._maxNbOfChilds <= 2, "Should get no more than 2 messages (O->S and S->M)");

   
    // clean up
    // wait for all zk callbacks done
    Thread.sleep(1000);
    controller.syncStop();
    for (int i = 0; i < n; i++)
    {
      participants[i].syncStop();
    }
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                                     .build();
    configAccessor.set(scope, cmdConfig.toKeyValueMap());


    // start controller
    ClusterController controller =
        new ClusterController(clusterName, "controller_0", zkAddr);
    controller.syncStart();
   
    // start helix-agent
    for (int i = 0; i < n; i++) {
      final String instanceName = "localhost_" + (12918 + i);
      Thread agentThread = new Thread() {
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  // start admin thread
  // AdminThread adminThread = new AdminThread(ZK_ADDR, _port);
  // adminThread.start();

  // start controller
  ClusterController controller = new ClusterController(clusterName,
    "controller_0", ZK_ADDR);
  controller.syncStart();

  Map<String, Set<String>> errPartitions = new HashMap<String, Set<String>>();
  errPartitions.put("SLAVE-MASTER", TestHelper.setOf("TestDB0_4"));
  errPartitions.put("OFFLINE-SLAVE", TestHelper.setOf("TestDB0_8"));

  // start mock participants
  MockParticipant[] participants = new MockParticipant[n];
  for (int i = 0; i < n; i++) {
      String instanceName = "localhost_" + (12918 + i);

      if (i == 0) {
    participants[i] = new MockParticipant(clusterName,
      instanceName, ZK_ADDR, new ErrTransition(errPartitions));
      } else {
    participants[i] = new MockParticipant(clusterName,
      instanceName, ZK_ADDR);
      }
      participants[i].syncStart();
  }

  // verify cluster
  Map<String, Map<String, String>> errStateMap = new HashMap<String, Map<String, String>>();
  errStateMap.put("TestDB0", new HashMap<String, String>());
  errStateMap.get("TestDB0").put("TestDB0_4", "localhost_12918");
  errStateMap.get("TestDB0").put("TestDB0_8", "localhost_12918");
  boolean result = ClusterStateVerifier
    .verifyByZkCallback((new ClusterStateVerifier.BestPossAndExtViewZkVerifier(
      ZK_ADDR, clusterName, errStateMap)));
  Assert.assertTrue(result, "Cluster verification fails");

  // reset a non-exist partition, should throw exception
  String hostName = "localhost_12918";
  String instanceUrl = getInstanceUrl(clusterName, hostName);

  Map<String, String> paramMap = new HashMap<String, String>();
  paramMap.put(JsonParameters.MANAGEMENT_COMMAND,
    ClusterSetup.resetPartition);
  paramMap.put(JsonParameters.PARTITION, "TestDB0_nonExist");
  paramMap.put(JsonParameters.RESOURCE, "TestDB0");
  LOG.info("IGNORABLE exception: test reset non-exist partition");
  TestHelixAdminScenariosRest.assertSuccessPostOperation(instanceUrl,
    paramMap, true);

  // reset 2 error partitions
  errPartitions.clear();
  participants[0].setTransition(new ErrTransitionWithResetCnt(
    errPartitions));
  clearStatusUpdate(clusterName, "localhost_12918", "TestDB0",
    "TestDB0_4");
  _errToOfflineInvoked.set(0);

  paramMap.put(JsonParameters.PARTITION, "TestDB0_4 TestDB0_8");
  TestHelixAdminScenariosRest.assertSuccessPostOperation(instanceUrl,
    paramMap, false);

  for (int i = 0; i < 10; i++) {
      Thread.sleep(400); // wait reset to be done
      LOG.info("IGNORABLE exception: test reset non-error partition");
      TestHelixAdminScenariosRest.assertSuccessPostOperation(instanceUrl,
        paramMap, true);

      result = ClusterStateVerifier
        .verifyByZkCallback(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(
          ZK_ADDR, clusterName));
      if (result == true) {
    break;
      }
  }
 
  Assert.assertTrue(result);
  Assert.assertEquals(_errToOfflineInvoked.get(), 2,
    "reset() should be invoked 2 times");

  // clean up
  // wait for all zk callbacks done
  Thread.sleep(1000);
  // adminThread.stop();
  controller.syncStop();
  for (int i = 0; i < 5; i++) {
      participants[i].syncStop();
  }

  System.out.println("END " + clusterName + " at "
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    // start admin thread
//    AdminThread adminThread = new AdminThread(ZK_ADDR, _port);
//    adminThread.start();

    // start controller
    ClusterController controller =
        new ClusterController(clusterName, "controller_0", ZK_ADDR);
    controller.syncStart();

    Map<String, Set<String>> errPartitions = new HashMap<String, Set<String>>()
    {
      {
        put("SLAVE-MASTER", TestHelper.setOf("TestDB0_4"));
        put("OFFLINE-SLAVE", TestHelper.setOf("TestDB0_8"));
      }
    };

    // start mock participants
    MockParticipant[] participants = new MockParticipant[n];
    for (int i = 0; i < n; i++)
    {
      String instanceName = "localhost_" + (12918 + i);

      if (i == 0)
      {
        participants[i] =
            new MockParticipant(clusterName,
                                instanceName,
                                ZK_ADDR,
                                new ErrTransition(errPartitions));
      }
      else
      {
        participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR);
      }
      participants[i].syncStart();
    }

    // verify cluster
    Map<String, Map<String, String>> errStateMap =
        new HashMap<String, Map<String, String>>();
    errStateMap.put("TestDB0", new HashMap<String, String>());
    errStateMap.get("TestDB0").put("TestDB0_4", "localhost_12918");
    errStateMap.get("TestDB0").put("TestDB0_8", "localhost_12918");
    boolean result =
        ClusterStateVerifier.verifyByZkCallback((new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                                       clusterName,
                                                                                                       errStateMap)));
    Assert.assertTrue(result, "Cluster verification fails");
   
    // reset resource "TestDB0"
    participants[0].setTransition(null);
    String resourceName = "TestDB0";
    String resourceUrl = "http://localhost:" + ADMIN_PORT + "/clusters/" + clusterName + "/resourceGroups/" + resourceName;

    Map<String, String> paramMap = new HashMap<String, String>();
    paramMap.put(JsonParameters.MANAGEMENT_COMMAND, ClusterSetup.resetResource);
    TestHelixAdminScenariosRest.assertSuccessPostOperation(resourceUrl, paramMap, false);

    result =
        ClusterStateVerifier.verifyByZkCallback((new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                                       clusterName)));
    Assert.assertTrue(result, "Cluster verification fails");
   
    // clean up
    // wait for all zk callbacks done
    Thread.sleep(1000);
//    adminThread.stop();
    controller.syncStop();
    for (int i = 0; i < 5; i++)
    {
      participants[i].syncStop();
    }
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//    // start admin thread
//    AdminThread adminThread = new AdminThread(ZK_ADDR, _port);
//    adminThread.start();

    // start controller
    ClusterController controller =
        new ClusterController(clusterName, "controller_0", ZK_ADDR);
    controller.syncStart();

    Map<String, Set<String>> errPartitions = new HashMap<String, Set<String>>()
    {
      {
        put("SLAVE-MASTER", TestHelper.setOf("TestDB0_4"));
        put("OFFLINE-SLAVE", TestHelper.setOf("TestDB0_8"));
      }
    };

    // start mock participants
    MockParticipant[] participants = new MockParticipant[n];
    for (int i = 0; i < n; i++)
    {
      String instanceName = "localhost_" + (12918 + i);

      if (i == 0)
      {
        participants[i] =
            new MockParticipant(clusterName,
                                instanceName,
                                ZK_ADDR,
                                new ErrTransition(errPartitions));
      }
      else
      {
        participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR);
      }
      participants[i].syncStart();
    }

    // verify cluster
    Map<String, Map<String, String>> errStateMap =
        new HashMap<String, Map<String, String>>();
    errStateMap.put("TestDB0", new HashMap<String, String>());
    errStateMap.get("TestDB0").put("TestDB0_4", "localhost_12918");
    errStateMap.get("TestDB0").put("TestDB0_8", "localhost_12918");
    boolean result =
        ClusterStateVerifier.verifyByZkCallback((new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                                       clusterName,
                                                                                                       errStateMap)));
    Assert.assertTrue(result, "Cluster verification fails");

    // reset node "localhost_12918"
    participants[0].setTransition(null);
    String hostName = "localhost_12918";
    String instanceUrl = "http://localhost:" + ADMIN_PORT + "/clusters/" + clusterName + "/instances/" + hostName;

    Map<String, String> paramMap = new HashMap<String, String>();
    paramMap.put(JsonParameters.MANAGEMENT_COMMAND, ClusterSetup.resetInstance);
    TestHelixAdminScenariosRest.assertSuccessPostOperation(instanceUrl, paramMap, false);
   
    result =
        ClusterStateVerifier.verifyByZkCallback((new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                                       clusterName)));
    Assert.assertTrue(result, "Cluster verification fails");
   
    // clean up
    // wait for all zk callbacks done
    Thread.sleep(1000);
//    adminThread.stop();
    controller.syncStop();
    for (int i = 0; i < 5; i++)
    {
      participants[i].syncStop();
    }
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    // start distributed cluster controllers
    ClusterController[] controllers = new ClusterController[n + n];
    for (int i = 0; i < n; i++)
    {
      controllers[i] =
          new ClusterController(controllerClusterName,
                                "controller_" + i,
                                ZK_ADDR,
                                HelixControllerMain.DISTRIBUTED.toString());
      controllers[i].syncStart();
    }

    boolean result =
        ClusterStateVerifier.verifyByZkCallback(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                                      controllerClusterName),
                                                30000);
    Assert.assertTrue(result, "Controller cluster NOT in ideal state");

    // start first cluster
    MockParticipant[] participants = new MockParticipant[n];
    final String firstClusterName = clusterNamePrefix + "0_0";
    for (int i = 0; i < n; i++)
    {
      String instanceName = "localhost0_" + (12918 + i);
      participants[i] =
          new MockParticipant(firstClusterName, instanceName, ZK_ADDR, null);
      participants[i].syncStart();
    }

    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
                                                                                 firstClusterName));
    Assert.assertTrue(result, "first cluster NOT in ideal state");
   
   
    // add more controllers to controller cluster
    ClusterSetup setupTool = new ClusterSetup(ZK_ADDR);
    for (int i = 0; i < n; i++)
    {
      String controller = "controller_" + (n + i);
      setupTool.addInstanceToCluster(controllerClusterName, controller);
    }
    setupTool.rebalanceStorageCluster(controllerClusterName, clusterNamePrefix + "0", 6);
    for (int i = n; i < 2 * n; i++)
    {
      controllers[i] =
          new ClusterController(controllerClusterName,
                                "controller_" + i,
                                ZK_ADDR,
                                HelixControllerMain.DISTRIBUTED.toString());
      controllers[i].syncStart();
    }
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        participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
        participants[i].syncStart();
      }

      ClusterController controller =
          new ClusterController(clusterName, "controller_0", ZK_ADDR);
      controller.syncStart();

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

      // make sure localhost_12919 is master on TestDB_1
      HelixDataAccessor accessor = controller.getManager().getHelixDataAccessor();
      Builder keyBuilder = accessor.keyBuilder();
      ExternalView extView = accessor.getProperty(keyBuilder.externalView(db));
      Map<String, String> stateMap = extView.getStateMap(db + "_1");
      Assert.assertEquals(stateMap.get("localhost_12919"), "MASTER",
          "localhost_12919 should be MASTER even though replicas is set to 2, since we generate message based on target-state priority");
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