Examples with MockParticipantManager org.apache.helix.integration.manager.MockParticipantManager used on opensource projects

Example 1 with MockParticipantManager

use of org.apache.helix.integration.manager.MockParticipantManager in project helix by apache.

the class TestHelixAdminScenariosRest method testInstanceOperations.

@Test
public void testInstanceOperations() throws Exception {
    final String clusterName = "clusterTestInstanceOperations";
    // setup cluster
    addCluster(clusterName);
    addInstancesToCluster(clusterName, "localhost:123", 6, null);
    addResource(clusterName, "db_11", 8);
    rebalanceResource(clusterName, "db_11");
    ClusterControllerManager controller = new ClusterControllerManager(ZK_ADDR, clusterName, "controller_9900");
    controller.syncStart();
    // start mock nodes
    Map<String, MockParticipantManager> participants = new HashMap<String, MockParticipantManager>();
    for (int i = 0; i < 6; i++) {
        String instanceName = "localhost_123" + i;
        MockParticipantManager participant = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
        participant.syncStart();
        participants.put(instanceName, participant);
    }
    HelixDataAccessor accessor;
    // drop node should fail as not disabled
    String instanceUrl = getInstanceUrl(clusterName, "localhost_1232");
    deleteUrl(instanceUrl, true);
    // disabled node
    String response = assertSuccessPostOperation(instanceUrl, enableInstanceCmd(false), false);
    Assert.assertTrue(response.contains("false"));
    // Cannot drop / swap
    deleteUrl(instanceUrl, true);
    String instancesUrl = getClusterUrl(clusterName) + "/instances";
    response = assertSuccessPostOperation(instancesUrl, swapInstanceCmd("localhost_1232", "localhost_12320"), true);
    // disconnect the node
    participants.get("localhost_1232").syncStop();
    // add new node then swap instance
    response = assertSuccessPostOperation(instancesUrl, addInstanceCmd("localhost_12320"), false);
    Assert.assertTrue(response.contains("localhost_12320"));
    // swap instance. The instance get swapped out should not exist anymore
    response = assertSuccessPostOperation(instancesUrl, swapInstanceCmd("localhost_1232", "localhost_12320"), false);
    Assert.assertTrue(response.contains("localhost_12320"));
    Assert.assertFalse(response.contains("localhost_1232\""));
    accessor = participants.get("localhost_1231").getHelixDataAccessor();
    String path = accessor.keyBuilder().instanceConfig("localhost_1232").getPath();
    Assert.assertFalse(_gZkClient.exists(path));
    MockParticipantManager newParticipant = new MockParticipantManager(ZK_ADDR, clusterName, "localhost_12320");
    newParticipant.syncStart();
    participants.put("localhost_12320", newParticipant);
    boolean verifyResult = ClusterStateVerifier.verifyByZkCallback(new MasterNbInExtViewVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(verifyResult);
    // clean up
    controller.syncStop();
    for (MockParticipantManager participant : participants.values()) {
        participant.syncStop();
    }
}

Example 2 with MockParticipantManager

use of org.apache.helix.integration.manager.MockParticipantManager in project helix by apache.

the class TestHelixAdminScenariosRest method testStartCluster.

@Test
public void testStartCluster() throws Exception {
    final String clusterName = "clusterTestStartCluster";
    final String controllerClusterName = "controllerClusterTestStartCluster";
    Map<String, MockParticipantManager> participants = new HashMap<String, MockParticipantManager>();
    Map<String, ClusterDistributedController> distControllers = new HashMap<String, ClusterDistributedController>();
    // setup cluster
    addCluster(clusterName);
    addInstancesToCluster(clusterName, "localhost:123", 6, null);
    addResource(clusterName, "db_11", 8);
    rebalanceResource(clusterName, "db_11");
    addCluster(controllerClusterName);
    addInstancesToCluster(controllerClusterName, "controller_900", 2, null);
    // start mock nodes
    for (int i = 0; i < 6; i++) {
        String instanceName = "localhost_123" + i;
        MockParticipantManager participant = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
        participant.syncStart();
        participants.put(instanceName, participant);
    }
    // start controller nodes
    for (int i = 0; i < 2; i++) {
        String controllerName = "controller_900" + i;
        ClusterDistributedController distController = new ClusterDistributedController(ZK_ADDR, controllerClusterName, controllerName);
        distController.syncStart();
        distControllers.put(controllerName, distController);
    }
    Thread.sleep(100);
    // activate clusters
    // wrong grand clustername
    String clusterUrl = getClusterUrl(clusterName);
    assertSuccessPostOperation(clusterUrl, activateClusterCmd("nonExistCluster", true), true);
    // wrong cluster name
    clusterUrl = getClusterUrl("nonExistCluster");
    assertSuccessPostOperation(clusterUrl, activateClusterCmd(controllerClusterName, true), true);
    clusterUrl = getClusterUrl(clusterName);
    assertSuccessPostOperation(clusterUrl, activateClusterCmd(controllerClusterName, true), false);
    Thread.sleep(500);
    deleteUrl(clusterUrl, true);
    // verify leader node
    HelixDataAccessor accessor = distControllers.get("controller_9001").getHelixDataAccessor();
    LiveInstance controllerLeader = accessor.getProperty(accessor.keyBuilder().controllerLeader());
    Assert.assertTrue(controllerLeader.getInstanceName().startsWith("controller_900"));
    accessor = participants.get("localhost_1232").getHelixDataAccessor();
    LiveInstance leader = accessor.getProperty(accessor.keyBuilder().controllerLeader());
    for (int i = 0; i < 5; i++) {
        if (leader != null) {
            break;
        }
        Thread.sleep(1000);
        leader = accessor.getProperty(accessor.keyBuilder().controllerLeader());
    }
    Assert.assertTrue(leader.getInstanceName().startsWith("controller_900"));
    boolean verifyResult = ClusterStateVerifier.verifyByZkCallback(new MasterNbInExtViewVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(verifyResult);
    verifyResult = ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(verifyResult);
    Thread.sleep(1000);
    // clean up
    for (ClusterDistributedController controller : distControllers.values()) {
        controller.syncStop();
    }
    for (MockParticipantManager participant : participants.values()) {
        participant.syncStop();
    }
}

Example 3 with MockParticipantManager

use of org.apache.helix.integration.manager.MockParticipantManager in project helix by apache.

the class TestHelixAdminScenariosRest method testExpandCluster.

@Test
public void testExpandCluster() throws Exception {
    final String clusterName = "clusterTestExpandCluster";
    // setup cluster
    addCluster(clusterName);
    addInstancesToCluster(clusterName, "localhost:123", 6, null);
    addResource(clusterName, "db_11", 22);
    rebalanceResource(clusterName, "db_11");
    ClusterControllerManager controller = new ClusterControllerManager(ZK_ADDR, clusterName, "controller_9900");
    controller.syncStart();
    // start mock nodes
    Map<String, MockParticipantManager> participants = new HashMap<String, MockParticipantManager>();
    for (int i = 0; i < 6; i++) {
        String instanceName = "localhost_123" + i;
        MockParticipantManager participant = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
        participant.syncStart();
        participants.put(instanceName, participant);
    }
    boolean verifyResult = ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(verifyResult);
    String clusterUrl = getClusterUrl(clusterName);
    String instancesUrl = clusterUrl + "/instances";
    String instances = "localhost:12331;localhost:12341;localhost:12351;localhost:12361";
    String response = assertSuccessPostOperation(instancesUrl, addInstanceCmd(instances), false);
    String[] hosts = instances.split(";");
    for (String host : hosts) {
        Assert.assertTrue(response.contains(host.replace(':', '_')));
    }
    response = assertSuccessPostOperation(clusterUrl, expandClusterCmd(), false);
    for (int i = 3; i <= 6; i++) {
        String instanceName = "localhost_123" + i + "1";
        MockParticipantManager participant = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
        participant.syncStart();
        participants.put(instanceName, participant);
    }
    verifyResult = ClusterStateVerifier.verifyByZkCallback(new MasterNbInExtViewVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(verifyResult);
    verifyResult = ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(verifyResult);
    // clean up
    controller.syncStop();
    for (MockParticipantManager participant : participants.values()) {
        participant.syncStop();
    }
}

Example 4 with MockParticipantManager

use of org.apache.helix.integration.manager.MockParticipantManager in project helix by apache.

the class TestResetInstance method testResetInstance.

@Test
public void testResetInstance() throws Exception {
    String className = TestHelper.getTestClassName();
    String methodName = TestHelper.getTestMethodName();
    String clusterName = className + "_" + methodName;
    final int n = 5;
    System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis()));
    // participant port
    TestHelper.setupCluster(// participant port
    clusterName, // participant port
    ZK_ADDR, // participant port
    12918, // participant name prefix
    "localhost", // resource name prefix
    "TestDB", // resources
    1, // partitions per resource
    10, // number of nodes
    n, // replicas
    3, "MasterSlave", // do rebalance
    true);
    // start controller
    ClusterControllerManager controller = new ClusterControllerManager(ZK_ADDR, clusterName, "controller_0");
    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
    MockParticipantManager[] participants = new MockParticipantManager[n];
    for (int i = 0; i < n; i++) {
        String instanceName = "localhost_" + (12918 + i);
        if (i == 0) {
            participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
            participants[i].setTransition(new ErrTransition(errPartitions));
        } else {
            participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
        }
        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
    controller.syncStop();
    for (int i = 0; i < 5; i++) {
        participants[i].syncStop();
    }
    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
}

Example 5 with MockParticipantManager

use of org.apache.helix.integration.manager.MockParticipantManager in project helix by apache.

the class TestResetPartitionState method testResetPartitionState.

@Test()
public void testResetPartitionState() throws Exception {
    String className = TestHelper.getTestClassName();
    String methodName = TestHelper.getTestMethodName();
    String clusterName = className + "_" + methodName;
    final int n = 5;
    System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis()));
    // participant port
    TestHelper.setupCluster(// participant port
    clusterName, // participant port
    ZK_ADDR, // participant port
    12918, // participant name prefix
    "localhost", // resource name prefix
    "TestDB", // resources
    1, // partitions per resource
    10, // number of nodes
    n, // replicas
    3, "MasterSlave", // do rebalance
    true);
    // start controller
    ClusterControllerManager controller = new ClusterControllerManager(ZK_ADDR, clusterName, "controller_0");
    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
    MockParticipantManager[] participants = new MockParticipantManager[n];
    for (int i = 0; i < n; i++) {
        String instanceName = "localhost_" + (12918 + i);
        if (i == 0) {
            participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
            participants[i].setTransition(new ErrTransition(errPartitions));
        } else {
            participants[i] = new MockParticipantManager(ZK_ADDR, clusterName, instanceName);
        }
        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++) {
        // wait reset to be done
        Thread.sleep(400);
        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
    controller.syncStop();
    for (int i = 0; i < 5; i++) {
        participants[i].syncStop();
    }
    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
}