Package org.apache.helix.manager.zk

Examples of org.apache.helix.manager.zk.ZKHelixAdmin

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    expectStateModelMap.put(PartitionId.from("TestDB0_2"), "SLAVE");
    expectStateModelMap.put(PartitionId.from("TestDB0_3"), "MASTER");
    checkStateModelMap(fty, expectStateModelMap);

    // drop resource
    HelixAdmin admin = new ZKHelixAdmin(_zkclient);
    admin.dropResource(clusterName, "TestDB0");

    result =
        ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(_zkaddr,
            clusterName));
    Assert.assertTrue(result);
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    MockController controller =
        new MockController(_zkaddr, clusterName, "controller");
    controller.syncStart();

    // get an admin and accessor
    HelixAdmin helixAdmin = new ZKHelixAdmin(_zkclient);
    HelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, _baseAccessor);
    PropertyKey.Builder keyBuilder = accessor.keyBuilder();

    // do the test
    try {
      Thread.sleep(1000);
      // ensure that the external view coalesces
      boolean result =
          ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(_zkaddr,
              clusterName));
      Assert.assertTrue(result);
      ExternalView stableExternalView =
          accessor.getProperty(keyBuilder.externalView(RESOURCE_NAME));
      for (int i = 0; i < NUM_PARTICIPANTS; i++) {
        // disable the controller, bounce the node, re-enable the controller, verify assignments
        // remained the same
        helixAdmin.enableCluster(clusterName, false);
        participants[i].disconnect();
        Thread.sleep(1000);
        participants[i] = createParticipant(clusterName, participants[i].getInstanceName());
        participants[i].connect();
        Thread.sleep(1000);
        helixAdmin.enableCluster(clusterName, true);
        Thread.sleep(1000);
        result =
            ClusterStateVerifier.verifyByZkCallback(new MatchingExternalViewVerifier(
                stableExternalView, clusterName));
        Assert.assertTrue(result);
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  public void testErrorPartition() throws Exception {
    String clusterName = TestUtil.getTestName();
    MockParticipant[] participants = new MockParticipant[5];

    System.out.println("START testErrorPartition() at " + new Date(System.currentTimeMillis()));
    ZKHelixAdmin tool = new ZKHelixAdmin(_zkclient);

    TestHelper.setupCluster(clusterName, _zkaddr, 12918, "localhost", "TestDB", 1, 10, 5, 3,
        "MasterSlave", true);

    MockController controller =
        new MockController(_zkaddr, clusterName, "controller_0");
    controller.syncStart();

    for (int i = 0; i < 5; i++) {
      String instanceName = "localhost_" + (12918 + i);

      if (i == 0) {
        Map<String, Set<String>> errPartitions = new HashMap<String, Set<String>>();
        errPartitions.put("SLAVE-MASTER", TestHelper.setOf("TestDB0_4"));
        participants[i] = new MockParticipant(_zkaddr, clusterName, instanceName);
        participants[i].setTransition(new ErrTransition(errPartitions));
      } else {
        participants[i] = new MockParticipant(_zkaddr, clusterName, instanceName);
      }
      participants[i].syncStart();
    }

    Map<String, Map<String, String>> errStates = new HashMap<String, Map<String, String>>();
    errStates.put("TestDB0", new HashMap<String, String>());
    errStates.get("TestDB0").put("TestDB0_4", "localhost_12918");
    boolean result =
        ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(
            _zkaddr, clusterName, errStates));
    Assert.assertTrue(result);

    Map<String, Set<String>> errorStateMap = new HashMap<String, Set<String>>();
    errorStateMap.put("TestDB0_4", TestHelper.setOf("localhost_12918"));

    // verify "TestDB0_0", "localhost_12918" is in ERROR state
    TestHelper.verifyState(clusterName, _zkaddr, errorStateMap, "ERROR");

    // disable a partition on a node with error state
    tool.enablePartition(false, clusterName, "localhost_12918", "TestDB0",
        Arrays.asList("TestDB0_4"));

    result =
        ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(
            _zkaddr, clusterName, errStates));
    Assert.assertTrue(result);

    TestHelper.verifyState(clusterName, _zkaddr, errorStateMap, "ERROR");

    // disable a node with error state
    tool.enableInstance(clusterName, "localhost_12918", false);

    result =
        ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(
            _zkaddr, clusterName, errStates));
    Assert.assertTrue(result);

    // make sure after restart stale ERROR state is gone
    tool.enablePartition(true, clusterName, "localhost_12918", "TestDB0",
        Arrays.asList("TestDB0_4"));
    tool.enableInstance(clusterName, "localhost_12918", true);

    participants[0].syncStop();
    result =
        ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(
            _zkaddr, clusterName));
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            .verifyByZkCallback(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(_zkaddr,
                clusterName));
    Assert.assertTrue(result);

    // Drop TestDB0
    HelixAdmin admin = new ZKHelixAdmin(_zkclient);
    admin.dropResource(clusterName, "TestDB0");

    result =
        ClusterStateVerifier
            .verifyByZkCallback(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(_zkaddr,
                clusterName));
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    constraintItemBuilder
        .addConstraintAttribute(ConstraintAttribute.MESSAGE_TYPE.toString(), "STATE_TRANSITION")
        .addConstraintAttribute(ConstraintAttribute.PARTITION.toString(), ".*")
        .addConstraintAttribute(ConstraintAttribute.CONSTRAINT_VALUE.toString(), "1");

    HelixAdmin admin = new ZKHelixAdmin(_zkclient);
    admin.setConstraint(clusterName, ConstraintType.MESSAGE_CONSTRAINT, "constraint1",
        constraintItemBuilder.build());

    MockController controller =
        new MockController(_zkaddr, clusterName, "controller");
    controller.syncStart();
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    boolean result =
        ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(
            _zkaddr, CLUSTER_NAME));
    Assert.assertTrue(result);

    ZKHelixAdmin tool = new ZKHelixAdmin(_zkclient);
    tool.enableInstance(CLUSTER_NAME, "localhost_12918", true);

    result =
        ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(
            _zkaddr, CLUSTER_NAME));
    Assert.assertTrue(result);
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  @Test
  public void testZkAdminTimeout() {
    boolean exceptionThrown = false;
    try {
      new ZKHelixAdmin("localhost:27999");
    } catch (Exception e) {
      exceptionThrown = true;
    }
    Assert.assertTrue(exceptionThrown);
    System.setProperty(ZKHelixAdmin.CONNECTION_TIMEOUT, "3");
    exceptionThrown = false;
    long time = System.currentTimeMillis();
    try {
      new ZKHelixAdmin("localhost:27999");
    } catch (Exception e) {
      exceptionThrown = true;
    }
    Assert.assertTrue(exceptionThrown);
    Assert.assertTrue(System.currentTimeMillis() - time < 5000);
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        NUM_REPLICAS, // replicas
        "MasterSlave", RebalanceMode.FULL_AUTO, // use FULL_AUTO mode to test node tagging
        true); // do rebalance

    // tag the resource
    HelixAdmin helixAdmin = new ZKHelixAdmin(_zkaddr);
    IdealState idealState = helixAdmin.getResourceIdealState(clusterName, RESOURCE_NAME);
    idealState.setInstanceGroupTag(TAG);
    helixAdmin.setResourceIdealState(clusterName, RESOURCE_NAME, idealState);

    // start controller
    MockController controller =
        new MockController(_zkaddr, clusterName, "controller");
    controller.syncStart();
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        NUM_REPLICAS, // replicas
        "MasterSlave", RebalanceMode.FULL_AUTO, // use FULL_AUTO mode to test node tagging
        true); // do rebalance

    // tag the resource and participants
    HelixAdmin helixAdmin = new ZKHelixAdmin(_zkaddr);
    for (String taggedNode : TAGGED_NODES) {
      helixAdmin.addInstanceTag(clusterName, taggedNode, TAG);
    }
    IdealState idealState = helixAdmin.getResourceIdealState(clusterName, RESOURCE_NAME);
    idealState.setInstanceGroupTag(TAG);
    helixAdmin.setResourceIdealState(clusterName, RESOURCE_NAME, idealState);

    // start controller
    MockController controller =
        new MockController(_zkaddr, clusterName, "controller");
    controller.syncStart();
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// Helix-50: integration test for generate message based on state priority
public class TestInvalidAutoIdealState extends ZkTestBase {
  // TODO Disable this test, need refactor it for testing message generation based on state priority
  // @Test
  void testInvalidReplica2() throws Exception {
    HelixAdmin admin = new ZKHelixAdmin(_zkaddr);

    // create cluster
    String className = TestHelper.getTestClassName();
    String methodName = TestHelper.getTestMethodName();
    String clusterName = className + "_" + methodName;
    String db = "TestDB";

    System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis()));

    // System.out.println("Creating cluster: " + clusterName);
    admin.addCluster(clusterName, true);

    // add MasterSlave state mode definition
    admin.addStateModelDef(clusterName, "MasterSlave", new StateModelDefinition(
        StateModelConfigGenerator.generateConfigForMasterSlave()));

    // Add nodes to the cluster
    int n = 3;
    System.out.println("Adding " + n + " participants to the cluster");
    for (int i = 0; i < n; i++) {
      int port = 12918 + i;
      InstanceConfig instanceConfig = new InstanceConfig("localhost_" + port);
      instanceConfig.setHostName("localhost");
      instanceConfig.setPort("" + port);
      instanceConfig.setInstanceEnabled(true);
      admin.addInstance(clusterName, instanceConfig);
      // System.out.println("\t Added participant: " + instanceConfig.getInstanceName());
    }

    // construct ideal-state manually
    IdealState idealState = new IdealState(db);
    idealState.setRebalanceMode(RebalanceMode.SEMI_AUTO);
    idealState.setNumPartitions(2);
    idealState.setReplicas("" + 2); // should be 3
    idealState.setStateModelDefId(StateModelDefId.from("MasterSlave"));
    idealState.getRecord().setListField("TestDB_0",
        Arrays.asList("localhost_12918", "localhost_12919", "localhost_12920"));
    idealState.getRecord().setListField("TestDB_1",
        Arrays.asList("localhost_12919", "localhost_12918", "localhost_12920"));

    admin.setResourceIdealState(clusterName, "TestDB", idealState);

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