Examples with ObjectStreamFactory org.neo4j.cluster.protocol.atomicbroadcast.ObjectStreamFactory used on opensource projects

Example 6 with ObjectStreamFactory

use of org.neo4j.cluster.protocol.atomicbroadcast.ObjectStreamFactory in project neo4j by neo4j.

the class MultiPaxosContextTest method shouldDeepClone.

@Test
public void shouldDeepClone() throws Exception {
    // Given
    ObjectStreamFactory objStream = new ObjectStreamFactory();
    AcceptorInstanceStore acceptorInstances = mock(AcceptorInstanceStore.class);
    Executor executor = mock(Executor.class);
    Timeouts timeouts = mock(Timeouts.class);
    ClusterConfiguration clusterConfig = new ClusterConfiguration("myCluster", NullLogProvider.getInstance());
    ElectionCredentialsProvider electionCredentials = mock(ElectionCredentialsProvider.class);
    Config config = mock(Config.class);
    when(config.get(ClusterSettings.max_acceptors)).thenReturn(10);
    MultiPaxosContext ctx = new MultiPaxosContext(new InstanceId(1), Collections.<ElectionRole>emptyList(), clusterConfig, executor, NullLogProvider.getInstance(), objStream, objStream, acceptorInstances, timeouts, electionCredentials, config);
    // When
    MultiPaxosContext snapshot = ctx.snapshot(NullLogProvider.getInstance(), timeouts, executor, acceptorInstances, objStream, objStream, electionCredentials);
    // Then
    assertEquals(ctx, snapshot);
}

Example 7 with ObjectStreamFactory

use of org.neo4j.cluster.protocol.atomicbroadcast.ObjectStreamFactory in project neo4j by neo4j.

the class MultiPaxosContextTest method shouldNotConsiderInstanceJoiningWithSameIdAndIpAProblem.

@Test
public void shouldNotConsiderInstanceJoiningWithSameIdAndIpAProblem() throws Exception {
    // Given
    Config config = mock(Config.class);
    when(config.get(ClusterSettings.max_acceptors)).thenReturn(10);
    MultiPaxosContext ctx = new MultiPaxosContext(new InstanceId(1), Collections.<ElectionRole>emptyList(), mock(ClusterConfiguration.class), mock(Executor.class), NullLogProvider.getInstance(), new ObjectStreamFactory(), new ObjectStreamFactory(), mock(AcceptorInstanceStore.class), mock(Timeouts.class), mock(ElectionCredentialsProvider.class), config);
    InstanceId joiningId = new InstanceId(12);
    String joiningUri = "http://127.0.0.1:900";
    // When
    ctx.getClusterContext().instanceIsJoining(joiningId, new URI(joiningUri));
    // Then
    assertFalse(ctx.getClusterContext().isInstanceJoiningFromDifferentUri(joiningId, new URI(joiningUri)));
    assertTrue(ctx.getClusterContext().isInstanceJoiningFromDifferentUri(joiningId, new URI("http://127.0.0.1:80")));
    assertFalse(ctx.getClusterContext().isInstanceJoiningFromDifferentUri(new InstanceId(13), new URI(joiningUri)));
}

Example 8 with ObjectStreamFactory

use of org.neo4j.cluster.protocol.atomicbroadcast.ObjectStreamFactory in project neo4j by neo4j.

the class MultiPaxosServer method start.

public void start() throws IOException {
    broadcastSerializer = new AtomicBroadcastSerializer(new ObjectStreamFactory(), new ObjectStreamFactory());
    final LifeSupport life = new LifeSupport();
    try {
        MessageTimeoutStrategy timeoutStrategy = new MessageTimeoutStrategy(new FixedTimeoutStrategy(5000)).timeout(HeartbeatMessage.sendHeartbeat, 200);
        Monitors monitors = new Monitors();
        NetworkedServerFactory serverFactory = new NetworkedServerFactory(life, new MultiPaxosServerFactory(new ClusterConfiguration("default", NullLogProvider.getInstance()), NullLogProvider.getInstance(), monitors.newMonitor(StateMachines.Monitor.class)), timeoutStrategy, NullLogProvider.getInstance(), new ObjectStreamFactory(), new ObjectStreamFactory(), monitors.newMonitor(NetworkReceiver.Monitor.class), monitors.newMonitor(NetworkSender.Monitor.class), monitors.newMonitor(NamedThreadFactory.Monitor.class));
        ServerIdElectionCredentialsProvider electionCredentialsProvider = new ServerIdElectionCredentialsProvider();
        server = serverFactory.newNetworkedServer(Config.embeddedDefaults(), new InMemoryAcceptorInstanceStore(), electionCredentialsProvider);
        server.addBindingListener(electionCredentialsProvider);
        server.addBindingListener(new BindingListener() {

            @Override
            public void listeningAt(URI me) {
                System.out.println("Listening at:" + me);
            }
        });
        cluster = server.newClient(Cluster.class);
        cluster.addClusterListener(new ClusterListener() {

            @Override
            public void enteredCluster(ClusterConfiguration clusterConfiguration) {
                System.out.println("Entered cluster:" + clusterConfiguration);
            }

            @Override
            public void joinedCluster(InstanceId instanceId, URI member) {
                System.out.println("Joined cluster:" + instanceId + " (at URI " + member + ")");
            }

            @Override
            public void leftCluster(InstanceId instanceId, URI member) {
                System.out.println("Left cluster:" + instanceId);
            }

            @Override
            public void leftCluster() {
                System.out.println("Left cluster");
            }

            @Override
            public void elected(String role, InstanceId instanceId, URI electedMember) {
                System.out.println(instanceId + " at URI " + electedMember + " was elected as " + role);
            }

            @Override
            public void unelected(String role, InstanceId instanceId, URI electedMember) {
                System.out.println(instanceId + " at URI " + electedMember + " was removed from " + role);
            }
        });
        Heartbeat heartbeat = server.newClient(Heartbeat.class);
        heartbeat.addHeartbeatListener(new HeartbeatListener() {

            @Override
            public void failed(InstanceId server) {
                System.out.println(server + " failed");
            }

            @Override
            public void alive(InstanceId server) {
                System.out.println(server + " alive");
            }
        });
        broadcast = server.newClient(AtomicBroadcast.class);
        broadcast.addAtomicBroadcastListener(new AtomicBroadcastListener() {

            @Override
            public void receive(Payload value) {
                try {
                    System.out.println(broadcastSerializer.receive(value));
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (ClassNotFoundException e) {
                    e.printStackTrace();
                }
            }
        });
        life.start();
        String command;
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        while (!(command = reader.readLine()).equals("quit")) {
            String[] arguments = command.split(" ");
            Method method = getCommandMethod(arguments[0]);
            if (method != null) {
                String[] realArgs = new String[arguments.length - 1];
                System.arraycopy(arguments, 1, realArgs, 0, realArgs.length);
                try {
                    method.invoke(this, (Object[]) realArgs);
                } catch (IllegalAccessException e) {
                    e.printStackTrace();
                } catch (IllegalArgumentException e) {
                    e.printStackTrace();
                } catch (InvocationTargetException e) {
                    e.printStackTrace();
                }
            }
        }
        cluster.leave();
    } finally {
        life.shutdown();
        System.out.println("Done");
    }
}

Example 9 with ObjectStreamFactory

use of org.neo4j.cluster.protocol.atomicbroadcast.ObjectStreamFactory in project neo4j by neo4j.

the class MultiPaxosTest method testFailure.

@Test
public void testFailure() throws Exception {
    ScriptableNetworkFailureLatencyStrategy networkLatency = new ScriptableNetworkFailureLatencyStrategy();
    NetworkMock network = new NetworkMock(NullLogService.getInstance(), new Monitors(), 50, new MultipleFailureLatencyStrategy(networkLatency), new MessageTimeoutStrategy(new FixedTimeoutStrategy(1000)));
    List<TestProtocolServer> nodes = new ArrayList<TestProtocolServer>();
    TestProtocolServer server = network.addServer(1, URI.create("cluster://server1"));
    server.newClient(Cluster.class).create("default");
    network.tickUntilDone();
    nodes.add(server);
    for (int i = 1; i < 3; i++) {
        TestProtocolServer protocolServer = network.addServer(i + 1, new URI("cluster://server" + (i + 1)));
        protocolServer.newClient(Cluster.class).join("default", new URI("cluster://server1"));
        network.tick(10);
        nodes.add(protocolServer);
    }
    final AtomicBroadcast atomicBroadcast = nodes.get(0).newClient(AtomicBroadcast.class);
    ObjectStreamFactory objectStreamFactory = new ObjectStreamFactory();
    final AtomicBroadcastSerializer serializer = new AtomicBroadcastSerializer(objectStreamFactory, objectStreamFactory);
    atomicBroadcast.broadcast(serializer.broadcast(new DaPayload()));
    networkLatency.nodeIsDown("cluster://server2");
    networkLatency.nodeIsDown("cluster://server3");
    atomicBroadcast.broadcast(serializer.broadcast(new DaPayload()));
    network.tick(100);
    networkLatency.nodeIsUp("cluster://server3");
    network.tick(1000);
    for (TestProtocolServer node : nodes) {
        node.newClient(Cluster.class).leave();
        network.tick(10);
    }
}

Example 10 with ObjectStreamFactory

use of org.neo4j.cluster.protocol.atomicbroadcast.ObjectStreamFactory in project neo4j by neo4j.

the class StateTransitionLoggerTest method shouldThrottle.

@Test
public void shouldThrottle() throws Exception {
    // Given
    AssertableLogProvider logProvider = new AssertableLogProvider(true);
    StateTransitionLogger stateLogger = new StateTransitionLogger(logProvider, new AtomicBroadcastSerializer(new ObjectStreamFactory(), new ObjectStreamFactory()));
    // When
    stateLogger.stateTransition(new StateTransition(entered, Message.internal(join), joining));
    stateLogger.stateTransition(new StateTransition(entered, Message.internal(join), joining));
    stateLogger.stateTransition(new StateTransition(joining, Message.internal(join), entered));
    stateLogger.stateTransition(new StateTransition(entered, Message.internal(join), joining));
    // Then
    logProvider.assertExactly(inLog(entered.getClass()).debug("ClusterState: entered-[join]->joining"), inLog(joining.getClass()).debug("ClusterState: joining-[join]->entered"), inLog(entered.getClass()).debug("ClusterState: entered-[join]->joining"));
}