Examples with Transport io.scalecube.transport.Transport used on opensource projects

Example 1 with Transport

use of io.scalecube.transport.Transport in project scalecube by scalecube.

the class ClusterImpl method join0.

public CompletableFuture<Cluster> join0() {
    CompletableFuture<Transport> transportFuture = Transport.bind(config.getTransportConfig());
    CompletableFuture<Void> clusterFuture = transportFuture.thenCompose(boundTransport -> {
        transport = boundTransport;
        messageObservable = transport.listen().filter(// filter out system gossips
        msg -> !SYSTEM_MESSAGES.contains(msg.qualifier()));
        membership = new MembershipProtocolImpl(transport, config);
        gossip = new GossipProtocolImpl(transport, membership, config);
        failureDetector = new FailureDetectorImpl(transport, membership, config);
        membership.setFailureDetector(failureDetector);
        membership.setGossipProtocol(gossip);
        Member localMember = membership.member();
        onMemberAdded(localMember);
        membership.listen().filter(MembershipEvent::isAdded).map(MembershipEvent::member).subscribe(this::onMemberAdded, this::onError);
        membership.listen().filter(MembershipEvent::isRemoved).map(MembershipEvent::member).subscribe(this::onMemberRemoved, this::onError);
        membership.listen().filter(MembershipEvent::isUpdated).map(MembershipEvent::member).subscribe(this::onMemberUpdated, this::onError);
        failureDetector.start();
        gossip.start();
        gossipObservable = gossip.listen().filter(// filter out system gossips
        msg -> !SYSTEM_GOSSIPS.contains(msg.qualifier()));
        return membership.start();
    });
    return clusterFuture.thenApply(aVoid -> ClusterImpl.this);
}

Example 2 with Transport

use of io.scalecube.transport.Transport in project scalecube by scalecube.

the class FailureDetectorTest method testSuspectedMemberWithNormalNetworkGetsPartitioned.

@Test
public void testSuspectedMemberWithNormalNetworkGetsPartitioned() throws Exception {
    // Create transports
    Transport a = Transport.bindAwait(true);
    Transport b = Transport.bindAwait(true);
    Transport c = Transport.bindAwait(true);
    Transport d = Transport.bindAwait(true);
    List<Address> members = Arrays.asList(a.address(), b.address(), c.address(), d.address());
    // Create failure detectors
    FailureDetectorImpl fd_a = createFD(a, members);
    FailureDetectorImpl fd_b = createFD(b, members);
    FailureDetectorImpl fd_c = createFD(c, members);
    FailureDetectorImpl fd_d = createFD(d, members);
    List<FailureDetectorImpl> fdetectors = Arrays.asList(fd_a, fd_b, fd_c, fd_d);
    // Block traffic to node D on other members
    a.networkEmulator().block(d.address());
    b.networkEmulator().block(d.address());
    c.networkEmulator().block(d.address());
    try {
        Future<List<FailureDetectorEvent>> list_a = listenNextEventFor(fd_a, members);
        Future<List<FailureDetectorEvent>> list_b = listenNextEventFor(fd_b, members);
        Future<List<FailureDetectorEvent>> list_c = listenNextEventFor(fd_c, members);
        Future<List<FailureDetectorEvent>> list_d = listenNextEventFor(fd_d, members);
        start(fdetectors);
        assertStatus(a.address(), SUSPECT, awaitEvents(list_a), d.address());
        assertStatus(b.address(), SUSPECT, awaitEvents(list_b), d.address());
        assertStatus(c.address(), SUSPECT, awaitEvents(list_c), d.address());
        // node D
        assertStatus(d.address(), SUSPECT, awaitEvents(list_d), a.address(), b.address(), c.address());
        // partitioned
        // Unblock traffic to member D on other members
        a.networkEmulator().unblockAll();
        b.networkEmulator().unblockAll();
        c.networkEmulator().unblockAll();
        TimeUnit.SECONDS.sleep(4);
        list_a = listenNextEventFor(fd_a, members);
        list_b = listenNextEventFor(fd_b, members);
        list_c = listenNextEventFor(fd_c, members);
        list_d = listenNextEventFor(fd_d, members);
        // Check member D recovers
        assertStatus(a.address(), ALIVE, awaitEvents(list_a), b.address(), c.address(), d.address());
        assertStatus(b.address(), ALIVE, awaitEvents(list_b), a.address(), c.address(), d.address());
        assertStatus(c.address(), ALIVE, awaitEvents(list_c), a.address(), b.address(), d.address());
        assertStatus(d.address(), ALIVE, awaitEvents(list_d), a.address(), b.address(), c.address());
    } finally {
        stop(fdetectors);
    }
}

Example 3 with Transport

use of io.scalecube.transport.Transport in project scalecube by scalecube.

the class FailureDetectorTest method testTrustedDespiteBadNetwork.

@Test
public void testTrustedDespiteBadNetwork() throws Exception {
    // Create transports
    Transport a = Transport.bindAwait(true);
    Transport b = Transport.bindAwait(true);
    Transport c = Transport.bindAwait(true);
    List<Address> members = Arrays.asList(a.address(), b.address(), c.address());
    // Create failure detectors
    FailureDetectorImpl fd_a = createFD(a, members);
    FailureDetectorImpl fd_b = createFD(b, members);
    FailureDetectorImpl fd_c = createFD(c, members);
    List<FailureDetectorImpl> fdetectors = Arrays.asList(fd_a, fd_b, fd_c);
    // Traffic issue at connection A -> B
    a.networkEmulator().block(b.address());
    Future<List<FailureDetectorEvent>> list_a = listenNextEventFor(fd_a, members);
    Future<List<FailureDetectorEvent>> list_b = listenNextEventFor(fd_b, members);
    Future<List<FailureDetectorEvent>> list_c = listenNextEventFor(fd_c, members);
    try {
        start(fdetectors);
        assertStatus(a.address(), ALIVE, awaitEvents(list_a), b.address(), c.address());
        assertStatus(b.address(), ALIVE, awaitEvents(list_b), a.address(), c.address());
        assertStatus(c.address(), ALIVE, awaitEvents(list_c), a.address(), b.address());
    } finally {
        stop(fdetectors);
    }
}

Example 4 with Transport

use of io.scalecube.transport.Transport in project scalecube by scalecube.

the class FailureDetectorTest method testSuspectedMemberWithBadNetworkGetsPartitioned.

@Test
public void testSuspectedMemberWithBadNetworkGetsPartitioned() throws Exception {
    // Create transports
    Transport a = Transport.bindAwait(true);
    Transport b = Transport.bindAwait(true);
    Transport c = Transport.bindAwait(true);
    Transport d = Transport.bindAwait(true);
    List<Address> members = Arrays.asList(a.address(), b.address(), c.address(), d.address());
    // Create failure detectors
    FailureDetectorImpl fd_a = createFD(a, members);
    FailureDetectorImpl fd_b = createFD(b, members);
    FailureDetectorImpl fd_c = createFD(c, members);
    FailureDetectorImpl fd_d = createFD(d, members);
    List<FailureDetectorImpl> fdetectors = Arrays.asList(fd_a, fd_b, fd_c, fd_d);
    // Block traffic on member A to all cluster members
    a.networkEmulator().block(members);
    try {
        Future<List<FailureDetectorEvent>> list_a = listenNextEventFor(fd_a, members);
        Future<List<FailureDetectorEvent>> list_b = listenNextEventFor(fd_b, members);
        Future<List<FailureDetectorEvent>> list_c = listenNextEventFor(fd_c, members);
        Future<List<FailureDetectorEvent>> list_d = listenNextEventFor(fd_d, members);
        start(fdetectors);
        // node A
        assertStatus(a.address(), SUSPECT, awaitEvents(list_a), b.address(), c.address(), d.address());
        // partitioned
        assertStatus(b.address(), SUSPECT, awaitEvents(list_b), a.address());
        assertStatus(c.address(), SUSPECT, awaitEvents(list_c), a.address());
        assertStatus(d.address(), SUSPECT, awaitEvents(list_d), a.address());
        // Unblock traffic on member A
        a.networkEmulator().unblockAll();
        TimeUnit.SECONDS.sleep(4);
        list_a = listenNextEventFor(fd_a, members);
        list_b = listenNextEventFor(fd_b, members);
        list_c = listenNextEventFor(fd_c, members);
        list_d = listenNextEventFor(fd_d, members);
        // Check member A recovers
        assertStatus(a.address(), ALIVE, awaitEvents(list_a), b.address(), c.address(), d.address());
        assertStatus(b.address(), ALIVE, awaitEvents(list_b), a.address(), c.address(), d.address());
        assertStatus(c.address(), ALIVE, awaitEvents(list_c), a.address(), b.address(), d.address());
        assertStatus(d.address(), ALIVE, awaitEvents(list_d), a.address(), b.address(), c.address());
    } finally {
        stop(fdetectors);
    }
}

Example 5 with Transport

use of io.scalecube.transport.Transport in project scalecube by scalecube.

the class GossipProtocolTest method initGossipProtocols.

private List<GossipProtocolImpl> initGossipProtocols(int count, int lostPercent, int meanDelay) {
    final List<Transport> transports = initTransports(count, lostPercent, meanDelay);
    List<Address> members = new ArrayList<>();
    for (Transport transport : transports) {
        members.add(transport.address());
    }
    List<GossipProtocolImpl> gossipProtocols = new ArrayList<>();
    for (Transport transport : transports) {
        gossipProtocols.add(initGossipProtocol(transport, members));
    }
    return gossipProtocols;
}