Examples with RpcDispatcher org.jgroups.blocks.RpcDispatcher used on opensource projects

Example 6 with RpcDispatcher

use of org.jgroups.blocks.RpcDispatcher in project JGroups by belaban.

the class RSVPTest method testRpcWithFuture.

public void testRpcWithFuture() throws Exception {
    final Method method = getClass().getMethod("getGreeting");
    RpcDispatcher[] dispatchers = new RpcDispatcher[channels.length];
    for (int i = 0; i < dispatchers.length; i++) {
        channels[i].setReceiver(null);
        dispatchers[i] = new RpcDispatcher(channels[i], this);
        dispatchers[i].start();
    }
    DISCARD discard = channels[0].getProtocolStack().findProtocol(DISCARD.class);
    discard.dropDownMulticasts(1);
    RequestOptions opts = RequestOptions.SYNC().flags(Message.Flag.RSVP_NB);
    long start = System.currentTimeMillis();
    Future<RspList<String>> future = dispatchers[0].callRemoteMethodsWithFuture(null, new MethodCall(method), opts);
    long rpc_time = System.currentTimeMillis() - start;
    start = System.currentTimeMillis();
    RspList<String> rsps = future.get(3000, TimeUnit.MILLISECONDS);
    long get_time = System.currentTimeMillis() - start;
    System.out.printf("rsps=\n%s\nRPC time=%d ms, Get time=%d ms", rsps, rpc_time, get_time);
    assert rsps.size() == channels.length;
    for (Rsp rsp : rsps) assert rsp.wasReceived() && rsp.getValue() != null;
    // take a GC into account
    assert rpc_time < 500;
}

Example 7 with RpcDispatcher

use of org.jgroups.blocks.RpcDispatcher in project JGroups by belaban.

the class RemoteGetStressTest method start.

protected void start() throws Exception {
    String[] names = { "A", "B", "C", "D" };
    channels = new JChannel[4];
    dispatchers = new RpcDispatcher[channels.length];
    for (int i = 0; i < channels.length; i++) {
        channels[i] = createChannel(names[i]);
        dispatchers[i] = new RpcDispatcher(channels[i], this);
        channels[i].connect("cluster");
    }
    Util.waitUntilAllChannelsHaveSameView(10000, 500, channels);
    System.out.println("view A: " + channels[0].getView());
    target_members = Arrays.asList(channels[1].getAddress(), channels[2].getAddress(), channels[3].getAddress());
    final AtomicInteger success = new AtomicInteger(0), failure = new AtomicInteger(0);
    if (USE_SLEEPS)
        insertDISCARD(channels[0], 0.2);
    long start = System.currentTimeMillis();
    Invoker[] invokers = new Invoker[NUM_THREADS];
    for (int i = 0; i < invokers.length; i++) {
        invokers[i] = new Invoker(dispatchers[0], success, failure);
        invokers[i].start();
    }
    for (Invoker invoker : invokers) invoker.join();
    long time = System.currentTimeMillis() - start;
    System.out.println("\n\n**** success: " + success + ", failure=" + failure + ", time=" + time + " ms");
    Util.keyPress("enter to terminate");
    stop();
}

Example 8 with RpcDispatcher

use of org.jgroups.blocks.RpcDispatcher in project JGroups by belaban.

the class UPerf method init.

public void init(String props, String name, AddressGenerator generator, int bind_port, boolean use_fibers) throws Throwable {
    thread_factory = new DefaultThreadFactory("invoker", false, true).useFibers(use_fibers);
    if (use_fibers && Util.fibersAvailable())
        System.out.println("-- using fibers instead of threads");
    channel = new JChannel(props).addAddressGenerator(generator).setName(name);
    if (bind_port > 0) {
        TP transport = channel.getProtocolStack().getTransport();
        transport.setBindPort(bind_port);
    }
    disp = new RpcDispatcher(channel, this).setReceiver(this).setMethodLookup(id -> METHODS[id]);
    channel.connect(groupname);
    local_addr = channel.getAddress();
    try {
        MBeanServer server = Util.getMBeanServer();
        JmxConfigurator.registerChannel(channel, server, "jgroups", channel.getClusterName(), true);
    } catch (Throwable ex) {
        System.err.println("registering the channel in JMX failed: " + ex);
    }
    if (members.size() < 2)
        return;
    Address coord = members.get(0);
    Config config = disp.callRemoteMethod(coord, new MethodCall(GET_CONFIG), new RequestOptions(ResponseMode.GET_ALL, 5000));
    if (config != null) {
        applyConfig(config);
        System.out.println("Fetched config from " + coord + ": " + config + "\n");
    } else
        System.err.println("failed to fetch config from " + coord);
}

Example 9 with RpcDispatcher

use of org.jgroups.blocks.RpcDispatcher in project JGroups by belaban.

the class RpcDispatcherSpeedTest method start.

public void start(String props, boolean jmx, String name) throws Exception {
    channel = new JChannel(props).name(name);
    disp = // no concurrent processing on incoming method calls
    new RpcDispatcher(channel, this).setReceiver(this).setMethodLookup(id -> METHODS[0]);
    if (jmx) {
        MBeanServer srv = Util.getMBeanServer();
        if (srv == null)
            throw new Exception("No MBeanServers found");
        JmxConfigurator.registerChannel(channel, srv, "jgroups", channel.getClusterName(), true);
    }
    channel.connect("rpc-speed-test");
    View view = channel.getView();
    if (view.size() > 2)
        System.err.printf("More than 2 members in cluster: %s; terminating\n", view);
    else
        loop();
    Util.close(disp, channel);
}

Example 10 with RpcDispatcher

use of org.jgroups.blocks.RpcDispatcher in project JGroups by belaban.

the class RelayDemoRpc method start.

public void start(String props, String name) throws Exception {
    ch = new JChannel(props);
    if (name != null)
        ch.setName(name);
    disp = new RpcDispatcher(ch, this).setReceiver(this);
    ch.connect("RelayDemo");
    local_addr = ch.getAddress().toString();
    MethodCall call = new MethodCall(getClass().getMethod("handleMessage", String.class, String.class));
    for (; ; ) {
        String line = Util.readStringFromStdin(": ");
        if (line.startsWith("help")) {
            System.out.println("unicast <text>  // unicasts to all members of local view\n" + "site <site>+    // unicasts to all listed site masters, e.g. \"site sfo lon\"\n" + "mcast <site>+   // anycasts to all local members, plus listed site masters \n" + "<text>          // multicast, RELAY2 will relay to all members of sites");
            continue;
        }
        call.setArgs(line, local_addr);
        // unicast to every member of the local cluster
        if (line.equalsIgnoreCase("unicast")) {
            for (Address dest : view.getMembers()) {
                System.out.println("invoking method in " + dest + ": ");
                try {
                    Object rsp = disp.callRemoteMethod(dest, call, new RequestOptions(ResponseMode.GET_ALL, RPC_TIMEOUT));
                    System.out.println("rsp from " + dest + ": " + rsp);
                } catch (Throwable throwable) {
                    throwable.printStackTrace();
                }
            }
        } else // unicast to 1 SiteMaster
        if (line.startsWith("site")) {
            Collection<String> site_masters = parseSiteMasters(line.substring("site".length()));
            for (String site_master : site_masters) {
                try {
                    SiteMaster dest = new SiteMaster(site_master);
                    System.out.println("invoking method in " + dest + ": ");
                    Object rsp = disp.callRemoteMethod(dest, call, new RequestOptions(ResponseMode.GET_ALL, RPC_TIMEOUT));
                    System.out.println("rsp from " + dest + ": " + rsp);
                } catch (Throwable t) {
                    t.printStackTrace();
                }
            }
        } else // mcast to all local members and N SiteMasters
        if (line.startsWith("mcast")) {
            Collection<String> site_masters = parseSiteMasters(line.substring("mcast".length()));
            Collection<Address> dests = new ArrayList<>(site_masters.size());
            for (String site_master : site_masters) {
                try {
                    dests.add(new SiteMaster(site_master));
                } catch (Throwable t) {
                    System.err.println("failed adding SiteMaster for " + site_master + ": " + t);
                }
            }
            dests.addAll(view.getMembers());
            System.out.println("invoking method in " + dests + ": ");
            RspList<Object> rsps = disp.callRemoteMethods(dests, call, new RequestOptions(ResponseMode.GET_ALL, RPC_TIMEOUT).anycasting(true));
            for (Map.Entry<Address, Rsp<Object>> entry : rsps.entrySet()) {
                Address sender = entry.getKey();
                Rsp<Object> rsp = entry.getValue();
                if (rsp.wasUnreachable())
                    System.out.println("<< unreachable: " + sender);
                else
                    System.out.println("<< " + rsp.getValue() + " from " + sender);
            }
        } else {
            // mcasting the call to all local cluster members
            RspList<Object> rsps = disp.callRemoteMethods(null, call, new RequestOptions(ResponseMode.GET_ALL, RPC_TIMEOUT).anycasting(false));
            rsps.forEach((key, val) -> System.out.println("<< " + val.getValue() + " from " + key));
        }
    }
}