Examples with MockMSModelFactory org.apache.helix.mock.participant.MockMSModelFactory used on opensource projects

Example 1 with MockMSModelFactory

use of org.apache.helix.mock.participant.MockMSModelFactory in project helix by apache.

the class TestAddStateModelFactoryAfterConnect method testBasic.

@Test
public void testBasic() throws Exception {
    // Logger.getRootLogger().setLevel(Level.INFO);
    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()));
    MockParticipantManager[] participants = new MockParticipantManager[n];
    // 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);
    ClusterControllerManager controller = new ClusterControllerManager(ZK_ADDR, clusterName, "controller_0");
    controller.syncStart();
    // start participants
    for (int i = 0; i < n; i++) {
        String instanceName = "localhost_" + (12918 + i);
        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 (// partition# x replicas
        totalMsgs == 48)
            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);
    // 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
    controller.syncStop();
    for (int i = 0; i < 5; i++) {
        participants[i].syncStop();
    }
    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
}

Example 2 with MockMSModelFactory

use of org.apache.helix.mock.participant.MockMSModelFactory in project helix by apache.

the class TestConsecutiveZkSessionExpiry method testDistributedController.

@Test
public void testDistributedController() throws Exception {
    // Logger.getRootLogger().setLevel(Level.INFO);
    String className = TestHelper.getTestClassName();
    String methodName = TestHelper.getTestMethodName();
    String clusterName = className + "_" + methodName;
    int n = 2;
    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
    4, // number of nodes
    n, // replicas
    2, "MasterSlave", // do rebalance
    true);
    ClusterDistributedController[] distributedControllers = new ClusterDistributedController[n];
    CountDownLatch startCountdown = new CountDownLatch(1);
    CountDownLatch endCountdown = new CountDownLatch(1);
    for (int i = 0; i < n; i++) {
        String contrllerName = "localhost_" + (12918 + i);
        distributedControllers[i] = new ClusterDistributedController(ZK_ADDR, clusterName, contrllerName);
        distributedControllers[i].getStateMachineEngine().registerStateModelFactory("MasterSlave", new MockMSModelFactory());
        if (i == 0) {
            distributedControllers[i].addPreConnectCallback(new PreConnectTestCallback(contrllerName, startCountdown, endCountdown));
        }
        distributedControllers[i].connect();
    }
    boolean result = ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(result);
    // expire the session of distributedController
    LOG.info("1st Expiring distributedController session...");
    String oldSessionId = distributedControllers[0].getSessionId();
    ZkTestHelper.asyncExpireSession(distributedControllers[0].getZkClient());
    String newSessionId = distributedControllers[0].getSessionId();
    LOG.info("Expried distributedController session. oldSessionId: " + oldSessionId + ", newSessionId: " + newSessionId);
    // expire zk session again during HelixManager#handleNewSession()
    startCountdown.await();
    LOG.info("2nd Expiring distributedController session...");
    oldSessionId = distributedControllers[0].getSessionId();
    ZkTestHelper.asyncExpireSession(distributedControllers[0].getZkClient());
    newSessionId = distributedControllers[0].getSessionId();
    LOG.info("Expried distributedController session. oldSessionId: " + oldSessionId + ", newSessionId: " + newSessionId);
    endCountdown.countDown();
    result = ClusterStateVerifier.verifyByPolling(new ClusterStateVerifier.BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(result);
    // verify leader changes to localhost_12919
    HelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    PropertyKey.Builder keyBuilder = accessor.keyBuilder();
    Assert.assertNotNull(pollForProperty(LiveInstance.class, accessor, keyBuilder.liveInstance("localhost_12918"), true));
    LiveInstance leader = pollForProperty(LiveInstance.class, accessor, keyBuilder.controllerLeader(), true);
    Assert.assertNotNull(leader);
    Assert.assertEquals(leader.getId(), "localhost_12919");
    // check localhost_12918 has 2 handlers: message and data-accessor
    LOG.debug("handlers: " + TestHelper.printHandlers(distributedControllers[0]));
    List<CallbackHandler> handlers = distributedControllers[0].getHandlers();
    Assert.assertEquals(handlers.size(), 2, "Distributed controller should have 2 handler (message) after lose leadership, but was " + handlers.size());
    // clean up
    distributedControllers[0].disconnect();
    distributedControllers[1].disconnect();
    Assert.assertNull(pollForProperty(LiveInstance.class, accessor, keyBuilder.liveInstance("localhost_12918"), false));
    Assert.assertNull(pollForProperty(LiveInstance.class, accessor, keyBuilder.liveInstance("localhost_12919"), false));
    Assert.assertNull(pollForProperty(LiveInstance.class, accessor, keyBuilder.controllerLeader(), false));
    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
}

Example 3 with MockMSModelFactory

use of org.apache.helix.mock.participant.MockMSModelFactory in project helix by apache.

the class TestDistributedControllerManager method simpleSessionExpiryTest.

@Test
public void simpleSessionExpiryTest() throws Exception {
    // Logger.getRootLogger().setLevel(Level.INFO);
    String className = TestHelper.getTestClassName();
    String methodName = TestHelper.getTestMethodName();
    String clusterName = className + "_" + methodName;
    int n = 2;
    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
    4, // number of nodes
    n, // replicas
    2, "MasterSlave", // do rebalance
    true);
    ClusterDistributedController[] distributedControllers = new ClusterDistributedController[n];
    for (int i = 0; i < n; i++) {
        String contrllerName = "localhost_" + (12918 + i);
        distributedControllers[i] = new ClusterDistributedController(ZK_ADDR, clusterName, contrllerName);
        distributedControllers[i].getStateMachineEngine().registerStateModelFactory("MasterSlave", new MockMSModelFactory());
        distributedControllers[i].connect();
    }
    boolean result = ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(result);
    // expire localhost_12918
    expireController(distributedControllers[0], distributedControllers[1]);
    // expire localhost_12919
    expireController(distributedControllers[1], distributedControllers[0]);
    // clean up
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    PropertyKey.Builder keyBuilder = accessor.keyBuilder();
    for (int i = 0; i < n; i++) {
        distributedControllers[i].disconnect();
        Assert.assertNull(accessor.getProperty(keyBuilder.liveInstance(distributedControllers[i].getInstanceName())));
    }
    Assert.assertNull(accessor.getProperty(keyBuilder.controllerLeader()));
    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
}

Example 4 with MockMSModelFactory

use of org.apache.helix.mock.participant.MockMSModelFactory in project helix by apache.

the class TestParticipantManager method simpleIntegrationTest.

@Test
public void simpleIntegrationTest() throws Exception {
    // Logger.getRootLogger().setLevel(Level.INFO);
    String className = TestHelper.getTestClassName();
    String methodName = TestHelper.getTestMethodName();
    String clusterName = className + "_" + methodName;
    int n = 1;
    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
    4, // number of nodes
    n, // replicas
    1, "MasterSlave", // do rebalance
    true);
    HelixManager participant = new ZKHelixManager(clusterName, "localhost_12918", InstanceType.PARTICIPANT, ZK_ADDR);
    participant.getStateMachineEngine().registerStateModelFactory("MasterSlave", new MockMSModelFactory());
    participant.connect();
    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();
    participant.disconnect();
    // verify all live-instances and leader nodes are gone
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    PropertyKey.Builder keyBuilder = accessor.keyBuilder();
    Assert.assertNull(accessor.getProperty(keyBuilder.liveInstance("localhost_12918")));
    Assert.assertNull(accessor.getProperty(keyBuilder.controllerLeader()));
    System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
}

Example 5 with MockMSModelFactory

use of org.apache.helix.mock.participant.MockMSModelFactory in project helix by apache.

the class TestDistributedControllerManager method simpleIntegrationTest.

@Test
public void simpleIntegrationTest() throws Exception {
    // Logger.getRootLogger().setLevel(Level.INFO);
    String className = TestHelper.getTestClassName();
    String methodName = TestHelper.getTestMethodName();
    String clusterName = className + "_" + methodName;
    int n = 2;
    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
    4, // number of nodes
    n, // replicas
    2, "MasterSlave", // do rebalance
    true);
    HelixManager[] distributedControllers = new HelixManager[n];
    for (int i = 0; i < n; i++) {
        int port = 12918 + i;
        distributedControllers[i] = new ZKHelixManager(clusterName, "localhost_" + port, InstanceType.CONTROLLER_PARTICIPANT, ZK_ADDR);
        distributedControllers[i].getStateMachineEngine().registerStateModelFactory("MasterSlave", new MockMSModelFactory());
        distributedControllers[i].connect();
    }
    boolean result = ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(result);
    // disconnect first distributed-controller, and verify second takes leadership
    distributedControllers[0].disconnect();
    // verify leader changes to localhost_12919
    Thread.sleep(100);
    result = ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(ZK_ADDR, clusterName));
    Assert.assertTrue(result);
    ZKHelixDataAccessor accessor = new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_gZkClient));
    PropertyKey.Builder keyBuilder = accessor.keyBuilder();
    Assert.assertNull(accessor.getProperty(keyBuilder.liveInstance("localhost_12918")));
    LiveInstance leader = accessor.getProperty(keyBuilder.controllerLeader());
    Assert.assertNotNull(leader);
    Assert.assertEquals(leader.getId(), "localhost_12919");
    // clean up
    distributedControllers[1].disconnect();
    Assert.assertNull(accessor.getProperty(keyBuilder.liveInstance("localhost_12919")));
    Assert.assertNull(accessor.getProperty(keyBuilder.controllerLeader()));
    System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis()));
}