Package org.apache.helix.tools.ClusterStateVerifier

Examples of org.apache.helix.tools.ClusterStateVerifier.BestPossAndExtViewZkVerifier

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    // do the test
    try {
      Thread.sleep(1000);
      // ensure that the external view coalesces
      boolean result =
          ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
              clusterName));
      Assert.assertTrue(result);
      ExternalView stableExternalView =
          accessor.getProperty(keyBuilder.externalView(RESOURCE_NAME));
      for (HelixManager participant : participants) {
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      participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
      participants[i].syncStart();
    }

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

    // add a new idealState without registering message handling factory
    ClusterSetup setupTool = new ClusterSetup(ZK_ADDR);
    setupTool.addResourceToCluster(clusterName, "TestDB1", 16, "MasterSlave");

    ZkBaseDataAccessor<ZNRecord> baseAccessor = new ZkBaseDataAccessor<ZNRecord>(_gZkClient);
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, baseAccessor);
    Builder keyBuilder = accessor.keyBuilder();
    IdealState idealState = accessor.getProperty(keyBuilder.idealStates("TestDB1"));
    idealState.setStateModelFactoryName("TestDB1_Factory");
    accessor.setProperty(keyBuilder.idealStates("TestDB1"), idealState);
    setupTool.rebalanceStorageCluster(clusterName, "TestDB1", 3);

    // assert that we have received OFFLINE->SLAVE messages for all partitions
    int totalMsgs = 0;
    for (int retry = 0; retry < 5; retry++) {
      Thread.sleep(100);
      totalMsgs = 0;
      for (int i = 0; i < n; i++) {
        List<Message> msgs =
            accessor.getChildValues(keyBuilder.messages(participants[i].getInstanceName()));
        totalMsgs += msgs.size();
      }

      if (totalMsgs == 48) // partition# x replicas
        break;
    }

    Assert
        .assertEquals(
            totalMsgs,
            48,
            "Should accumulated 48 unprocessed messages (1 O->S per partition per replica) because TestDB1 is added without state-model-factory but was "
                + totalMsgs);

    // register "TestDB1_Factory" state model factory
    // Logger.getRootLogger().setLevel(Level.INFO);
    for (int i = 0; i < n; i++) {
      participants[i].getStateMachineEngine()
          .registerStateModelFactory("MasterSlave", new MockMSModelFactory(), "TestDB1_Factory");
    }

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

    // clean up
    // wait for all zk callbacks done
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      participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
      participants[i].syncStart();
    }

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

    // disable localhost_12918
    String command =
        "--zkSvr " + ZK_ADDR + " --enableInstance " + clusterName + " " + disableNode + " false";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));
    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);

    // make sure localhost_12918 is in OFFLINE state
    Map<String, Map<String, String>> expectStateMap = new HashMap<String, Map<String, String>>();
    Map<String, String> expectInstanceStateMap = new HashMap<String, String>();
    expectInstanceStateMap.put(disableNode, "OFFLINE");
    expectStateMap.put(".*", expectInstanceStateMap);
    result = ZkTestHelper.verifyState(_gZkClient, clusterName, "TestDB0", expectStateMap, "==");
    Assert.assertTrue(result, disableNode + " should be in OFFLINE");

    // re-enable localhost_12918
    command =
        "--zkSvr " + ZK_ADDR + " --enableInstance " + clusterName + " " + disableNode + " true";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));
    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);

    // make sure localhost_12918 is NOT in OFFLINE state
    result = ZkTestHelper.verifyState(_gZkClient, clusterName, "TestDB0", expectStateMap, "!=");
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      participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
      participants[i].syncStart();
    }

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

    // disable localhost_12919
    String command =
        "--zkSvr " + ZK_ADDR + " --enableInstance " + clusterName + " " + disableNode + " false";
    ClusterSetup.processCommandLineArgs(command.split(" "));
    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);

    // make sure localhost_12919 is in OFFLINE state
    Map<String, Map<String, String>> expectStateMap = new HashMap<String, Map<String, String>>();
    Map<String, String> expectInstanceStateMap = new HashMap<String, String>();
    expectInstanceStateMap.put(disableNode, "OFFLINE");
    expectStateMap.put(".*", expectInstanceStateMap);
    result = ZkTestHelper.verifyState(_gZkClient, clusterName, "TestDB0", expectStateMap, "==");
    Assert.assertTrue(result, disableNode + " should be in OFFLINE");

    // re-enable localhost_12919
    command =
        "--zkSvr " + ZK_ADDR + " --enableInstance " + clusterName + " " + disableNode + " true";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));
    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);

    // make sure localhost_12919 is NOT in OFFLINE state
    result = ZkTestHelper.verifyState(_gZkClient, clusterName, "TestDB0", expectStateMap, "!=");
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      participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
      participants[i].syncStart();
    }

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

    // disable [TestDB0_0, TestDB0_5] on localhost_12919
    String command =
        "--zkSvr " + ZK_ADDR + " --enablePartition false " + clusterName
            + " localhost_12919 TestDB0 TestDB0_0 TestDB0_5";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));

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

    // make sure localhost_12918 is in OFFLINE state for [TestDB0_0, TestDB0_5]
    Map<String, Map<String, String>> expectStateMap = new HashMap<String, Map<String, String>>();
    Map<String, String> expectInstanceStateMap = new HashMap<String, String>();
    expectInstanceStateMap.put("localhost_12919", "OFFLINE");
    expectStateMap.put("TestDB0_0", expectInstanceStateMap);
    expectStateMap.put("TestDB0_5", expectInstanceStateMap);
    result = ZkTestHelper.verifyState(_gZkClient, clusterName, "TestDB0", expectStateMap, "==");
    Assert.assertTrue(result, "localhost_12919"
        + " should be in OFFLINE for [TestDB0_0, TestDB0_5]");

    // re-enable localhost_12919 for [TestDB0_0, TestDB0_5]
    command =
        "--zkSvr " + ZK_ADDR + " --enablePartition true " + clusterName
            + " localhost_12919 TestDB0 TestDB0_0 TestDB0_5";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));
    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);

    // make sure localhost_12919 is NOT in OFFLINE state for [TestDB0_0, TestDB0_5]
    result = ZkTestHelper.verifyState(_gZkClient, clusterName, "TestDB0", expectStateMap, "!=");
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      participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
      participants[i].syncStart();
    }

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

    // disable [TestDB0_0, TestDB0_5] on localhost_12919
    String command =
        "--zkSvr " + ZK_ADDR + " --enablePartition false " + clusterName
            + " localhost_12919 TestDB0 TestDB0_0 TestDB0_5";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));

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

    // make sure localhost_12918 is in OFFLINE state for [TestDB0_0, TestDB0_5]
    Map<String, Map<String, String>> expectStateMap = new HashMap<String, Map<String, String>>();
    Map<String, String> expectInstanceStateMap = new HashMap<String, String>();
    expectInstanceStateMap.put("localhost_12919", "OFFLINE");
    expectStateMap.put("TestDB0_0", expectInstanceStateMap);
    expectStateMap.put("TestDB0_5", expectInstanceStateMap);
    result = ZkTestHelper.verifyState(_gZkClient, clusterName, "TestDB0", expectStateMap, "==");
    Assert.assertTrue(result, "localhost_12919"
        + " should be in OFFLINE for [TestDB0_0, TestDB0_5]");

    // re-enable localhost_12919 for [TestDB0_0, TestDB0_5]
    command =
        "--zkSvr " + ZK_ADDR + " --enablePartition true " + clusterName
            + " localhost_12919 TestDB0 TestDB0_0 TestDB0_5";
    ClusterSetup.processCommandLineArgs(command.split("\\s+"));
    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);

    // make sure localhost_12919 is NOT in OFFLINE state for [TestDB0_0, TestDB0_5]
    result = ZkTestHelper.verifyState(_gZkClient, clusterName, "TestDB0", expectStateMap, "!=");
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      participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
      participants[i].syncStart();
    }

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

    // expire zk-connection on localhost_12918
    ZkTestHelper.expireSession(controller.getZkClient());

    // wait until session expiry callback happens
    TimeUnit.MILLISECONDS.sleep(100);

    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);
    String newSessionId = controller.getSessionId();
    Assert.assertNotSame(newSessionId, oldSessionId);
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    HelixManager controller =
        new ZKHelixManager(clusterName, "controller_0", InstanceType.CONTROLLER, ZK_ADDR);
    controller.connect();

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

    // cleanup
    controller.disconnect();
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      participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
      participants[i].syncStart();
    }

    boolean result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);
    String oldSessionId = participants[0].getSessionId();

    // expire zk-connection on localhost_12918
    ZkTestHelper.expireSession(participants[0].getZkClient());

    // wait until session expiry callback happens
    TimeUnit.MILLISECONDS.sleep(100);

    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR,
            clusterName));
    Assert.assertTrue(result);
    String newSessionId = participants[0].getSessionId();
    Assert.assertNotSame(newSessionId, oldSessionId);
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    String oldSessionId = participants[0].getSessionId();
    System.out.println("oldSessionId: " + oldSessionId);
    ZkTestHelper.expireSession(participants[0].getZkClient());

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

    String newSessionId = participants[0].getSessionId();
    Assert.assertNotSame(newSessionId, oldSessionId);
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Related Classes of org.apache.helix.tools.ClusterStateVerifier.BestPossAndExtViewZkVerifier

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  • org.apache.helix.api.TestNewStages
  • org.apache.helix.controller.stages.TestStagesWithLogicalAccessors
  • org.apache.helix.healthcheck.TestAlertActionTriggering
  • org.apache.helix.healthcheck.TestDummyAlerts
  • org.apache.helix.integration.manager.TestConsecutiveZkSessionExpiry
  • org.apache.helix.integration.manager.TestControllerManager
  • org.apache.helix.integration.manager.TestDistributedControllerManager
  • org.apache.helix.integration.manager.TestHelixMultiClusterController
  • org.apache.helix.integration.manager.TestParticipantManager
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