예제 #1
0
        public void when_handling_trusted_write_on_internal_service()
        {
            ManualResetEvent waiter = new ManualResetEvent(false);

            ClientMessage.WriteEvents publishedWrite = null;
            var evnt  = new Event(Guid.NewGuid(), "TestEventType", true, new byte[] { }, new byte[] { });
            var write = new TcpClientMessageDto.WriteEvents(
                Guid.NewGuid().ToString(),
                ExpectedVersion.Any,
                new[] { new TcpClientMessageDto.NewEvent(evnt.EventId.ToByteArray(), evnt.EventType, evnt.IsJson ? 1 : 0, 0, evnt.Data, evnt.Metadata) },
                false);

            var package         = new TcpPackage(TcpCommand.WriteEvents, Guid.NewGuid(), write.Serialize());
            var dummyConnection = new DummyTcpConnection();
            var publisher       = InMemoryBus.CreateTest();

            publisher.Subscribe(new AdHocHandler <ClientMessage.WriteEvents>(x => {
                publishedWrite = x;
                waiter.Set();
            }));

            var tcpConnectionManager = new TcpConnectionManager(
                Guid.NewGuid().ToString(), TcpServiceType.Internal, new ClientTcpDispatcher(),
                publisher, dummyConnection, publisher, new InternalAuthenticationProvider(new Core.Helpers.IODispatcher(publisher, new NoopEnvelope()), new StubPasswordHashAlgorithm(), 1),
                TimeSpan.FromSeconds(10), TimeSpan.FromSeconds(10), (man, err) => { });

            tcpConnectionManager.ProcessPackage(package);

            if (!waiter.WaitOne(TimeSpan.FromSeconds(5)))
            {
                throw new Exception("Timed out waiting for events.");
            }
            Assert.AreEqual(evnt.EventId, publishedWrite.Events.First().EventId, "Expected the published write to be the event that was sent through the tcp connection manager to be the event {0} but got {1}", evnt.EventId, publishedWrite.Events.First().EventId);
        }
예제 #2
0
        private static TcpPackage WrapWriteEvents(ClientMessage.WriteEvents msg)
        {
            var dto = new TcpClientMessageDto.WriteEvents(
                msg.EventStreamId,
                msg.ExpectedVersion,
                msg.Events.Select(x => new TcpClientMessageDto.ClientEvent(x.EventId.ToByteArray(), x.EventType, x.IsJson, x.Data, x.Metadata)).ToArray(),
                msg.AllowForwarding);

            return(new TcpPackage(TcpCommand.WriteEvents, msg.CorrelationId, dto.Serialize()));
        }
예제 #3
0
        private static TcpPackage WrapWriteEvents(ClientMessage.WriteEvents msg)
        {
            var events = new TcpClientMessageDto.NewEvent[msg.Events.Length];

            for (int i = 0; i < events.Length; ++i)
            {
                var e = msg.Events[i];
                events[i] = new TcpClientMessageDto.NewEvent(e.EventId.ToByteArray(), e.EventType, e.IsJson ? 1 : 0, 0, e.Data, e.Metadata);
            }
            var dto = new TcpClientMessageDto.WriteEvents(msg.EventStreamId, msg.ExpectedVersion, events, msg.RequireMaster);

            return(CreateWriteRequestPackage(TcpCommand.WriteEvents, msg, dto));
        }
        private void WriteFlood(CommandProcessorContext context, int clientsCnt, int requestsCnt, int payloadSize)
        {
            context.IsAsync();

            var dataSize     = Math.Max(0, payloadSize - 100);
            var metadataSize = Math.Min(100, payloadSize);

            var clients   = new List <TcpTypedConnection <byte[]> >();
            var threads   = new List <Thread>();
            var doneEvent = new ManualResetEventSlim(false);
            var succ      = 0;
            var fail      = 0;
            var all       = 0;

            for (int i = 0; i < clientsCnt; i++)
            {
                var count         = requestsCnt / clientsCnt + ((i == clientsCnt - 1) ? requestsCnt % clientsCnt : 0);
                var autoEvent     = new AutoResetEvent(false);
                var eventStreamId = "es" + Guid.NewGuid();
                var received      = 0;
                var client        = context.Client.CreateTcpConnection(
                    context,
                    (conn, pkg) =>
                {
                    if (pkg.Command != TcpCommand.WriteEventsCompleted)
                    {
                        context.Fail(reason: string.Format("Unexpected TCP package: {0}.", pkg.Command));
                        return;
                    }

                    Interlocked.Increment(ref received);
                    var dto = pkg.Data.Deserialize <TcpClientMessageDto.WriteEventsCompleted>();
                    if (dto.Result == TcpClientMessageDto.OperationResult.Success)
                    {
                        if (Interlocked.Increment(ref succ) % 1000 == 0)
                        {
                            Console.Write(".");
                        }
                    }
                    else
                    {
                        if (Interlocked.Increment(ref fail) % 1000 == 0)
                        {
                            Console.Write("#");
                        }
                    }

                    if (Interlocked.Increment(ref all) == requestsCnt)
                    {
                        context.Success();
                        doneEvent.Set();
                    }
                    autoEvent.Set();
                },
                    connectionClosed: (conn, err) => context.Fail(reason: "Connection was closed prematurely."));
                clients.Add(client);

                threads.Add(new Thread(() =>
                {
                    for (int j = 0; j < count; ++j)
                    {
                        var write = new TcpClientMessageDto.WriteEvents(
                            eventStreamId,
                            ExpectedVersion.Any,
                            new[]
                        {
                            new TcpClientMessageDto.NewEvent(Guid.NewGuid().ToByteArray(),
                                                             "TakeSomeSpaceEvent",
                                                             0, 0,
                                                             Common.Utils.Helper.UTF8NoBom.GetBytes("DATA" + new string('*', dataSize)),
                                                             Common.Utils.Helper.UTF8NoBom.GetBytes("METADATA" + new string('$', metadataSize)))
                        },
                            false);
                        var package = new TcpPackage(TcpCommand.WriteEvents, Guid.NewGuid(), write.Serialize());
                        client.EnqueueSend(package.AsByteArray());
                        autoEvent.WaitOne();
                    }
                })
                {
                    IsBackground = true
                });
            }

            var sw = Stopwatch.StartNew();

            threads.ForEach(thread => thread.Start());
            doneEvent.Wait();
            sw.Stop();
            clients.ForEach(client => client.Close());

            var reqPerSec = (all + 0.0) / sw.ElapsedMilliseconds * 1000;

            context.Log.Info("Completed. Successes: {0}, failures: {1}", succ, fail);
            context.Log.Info("{0} requests completed in {1}ms ({2:0.00} reqs per sec, latency: {3:0.00} ms).",
                             all, sw.ElapsedMilliseconds, reqPerSec, (sw.Elapsed.TotalMilliseconds + 0.0) / requestsCnt);
            PerfUtils.LogData(Keyword,
                              PerfUtils.Row(PerfUtils.Col("clientsCnt", clientsCnt),
                                            PerfUtils.Col("requestsCnt", requestsCnt),
                                            PerfUtils.Col("ElapsedMilliseconds", sw.ElapsedMilliseconds)),
                              PerfUtils.Row(PerfUtils.Col("successes", succ), PerfUtils.Col("failures", fail)));
            PerfUtils.LogTeamCityGraphData(string.Format("{0}-{1}-{2}-reqPerSec", Keyword, clientsCnt, requestsCnt), (int)reqPerSec);
            PerfUtils.LogTeamCityGraphData(string.Format("{0}-{1}-{2}-failureSuccessRate", Keyword, clientsCnt, requestsCnt), (int)(100.0 * fail / (fail + succ)));
            PerfUtils.LogTeamCityGraphData(string.Format("{0}-latency-ms", Keyword), (int)Math.Round(sw.Elapsed.TotalMilliseconds / requestsCnt));

            if (succ != requestsCnt)
            {
                context.Fail(reason: "There were errors or not all requests completed.");
            }
            else
            {
                context.Success();
            }
        }
예제 #5
0
        public bool Execute(CommandProcessorContext context, string[] args)
        {
            var    eventStreamId   = "test-stream";
            var    expectedVersion = ExpectedVersion.Any;
            var    data            = "test-data";
            string metadata        = null;
            bool   isJson          = false;
            string login           = null;
            string pass            = null;

            if (args.Length > 0)
            {
                if (args.Length < 3 || args.Length > 7 || args.Length == 6)
                {
                    return(false);
                }
                eventStreamId   = args[0];
                expectedVersion = args[1].ToUpper() == "ANY" ? ExpectedVersion.Any : int.Parse(args[1]);
                data            = args[2];
                if (args.Length >= 4)
                {
                    metadata = args[3];
                }
                if (args.Length >= 5)
                {
                    isJson = bool.Parse(args[4]);
                }
                if (args.Length >= 7)
                {
                    login = args[5];
                    pass  = args[6];
                }
            }

            context.IsAsync();
            var sw = new Stopwatch();

            context.Client.CreateTcpConnection(
                context,
                connectionEstablished: conn =>
            {
                context.Log.Info("[{0}, L{1}]: Writing...", conn.RemoteEndPoint, conn.LocalEndPoint);
                var writeDto = new TcpClientMessageDto.WriteEvents(
                    eventStreamId,
                    expectedVersion,
                    new[]
                {
                    new TcpClientMessageDto.NewEvent(Guid.NewGuid().ToByteArray(),
                                                     "TakeSomeSpaceEvent",
                                                     isJson ? 1: 0, 0,
                                                     Helper.UTF8NoBom.GetBytes(data),
                                                     Helper.UTF8NoBom.GetBytes(metadata ?? string.Empty))
                },
                    false);
                var package = new TcpPackage(TcpCommand.WriteEvents,
                                             login == null ? TcpFlags.None : TcpFlags.Authenticated,
                                             Guid.NewGuid(),
                                             login,
                                             pass,
                                             writeDto.Serialize()).AsByteArray();
                sw.Start();
                conn.EnqueueSend(package);
            },
                handlePackage: (conn, pkg) =>
            {
                sw.Stop();
                context.Log.Info("Write request took: {0}.", sw.Elapsed);

                if (pkg.Command != TcpCommand.WriteEventsCompleted)
                {
                    context.Fail(reason: string.Format("Unexpected TCP package: {0}.", pkg.Command));
                    return;
                }

                var dto = pkg.Data.Deserialize <TcpClientMessageDto.WriteEventsCompleted>();
                if (dto.Result == TcpClientMessageDto.OperationResult.Success)
                {
                    context.Log.Info("Successfully written.");
                    PerfUtils.LogTeamCityGraphData(string.Format("{0}-latency-ms", Keyword), (int)sw.ElapsedMilliseconds);
                    context.Success();
                }
                else
                {
                    context.Log.Info("Error while writing: {0} ({1}).", dto.Message, dto.Result);
                    context.Fail();
                }

                conn.Close();
            },
                connectionClosed: (connection, error) => context.Fail(reason: "Connection was closed prematurely."));

            context.WaitForCompletion();
            return(true);
        }
예제 #6
0
        private void Write(Status status, int writerIdx, CommandProcessorContext context, int requests,
                           ManualResetEventSlim finish)
        {
            TcpTypedConnection <byte[]> connection;
            var iteration = new AutoResetEvent(false);

            var sent = 0;

            var prepareTimeouts      = 0;
            var commitTimeouts       = 0;
            var forwardTimeouts      = 0;
            var wrongExpectedVersion = 0;
            var streamsDeleted       = 0;

            var failed = 0;

            var rnd = new Random(writerIdx);

            var streamIdx = -1;
            var head      = -1;

            Action <TcpTypedConnection <byte[]>, TcpPackage> packageHandler = (conn, pkg) => {
                var dto = pkg.Data.Deserialize <TcpClientMessageDto.WriteEventsCompleted>();
                switch (dto.Result)
                {
                case TcpClientMessageDto.OperationResult.Success:
                    lock (_heads) {
                        var currentHead = _heads[streamIdx];
                        Ensure.Equal(currentHead, head, "currentHead");
                        _heads[streamIdx]++;
                    }

                    break;

                case TcpClientMessageDto.OperationResult.PrepareTimeout:
                    prepareTimeouts++;
                    failed++;
                    break;

                case TcpClientMessageDto.OperationResult.CommitTimeout:
                    commitTimeouts++;
                    failed++;
                    break;

                case TcpClientMessageDto.OperationResult.ForwardTimeout:
                    forwardTimeouts++;
                    failed++;
                    break;

                case TcpClientMessageDto.OperationResult.WrongExpectedVersion:
                    wrongExpectedVersion++;
                    failed++;
                    break;

                case TcpClientMessageDto.OperationResult.StreamDeleted:
                    streamsDeleted++;
                    failed++;
                    break;

                default:
                    throw new ArgumentOutOfRangeException();
                }

                sent++;
                if (sent % 1000 == 0)
                {
                    status.ReportWritesProgress(writerIdx, sent, prepareTimeouts, commitTimeouts, forwardTimeouts,
                                                wrongExpectedVersion, streamsDeleted, failed, requests);
                }
                iteration.Set();
            };

            Action <TcpTypedConnection <byte[]> >             established = _ => { };
            Action <TcpTypedConnection <byte[]>, SocketError> closed      = null;

            closed = (_, __) => {
                if (!context.Client.Options.Reconnect)
                {
                    return;
                }
                Thread.Sleep(TimeSpan.FromSeconds(1));
                connection =
                    context.Client.CreateTcpConnection(context, packageHandler, cn => iteration.Set(), closed, false);
            };

            connection = context.Client.CreateTcpConnection(context, packageHandler, established, closed, false);

            for (var i = 0; i < requests; ++i)
            {
                streamIdx = NextStreamForWriting(rnd, writerIdx);
                lock (_heads) {
                    head = _heads[streamIdx];
                }

                var evnt  = CreateEvent(_streams[streamIdx], head + 1);
                var write = new TcpClientMessageDto.WriteEvents(
                    _streams[streamIdx],
                    head,
                    new[] {
                    new TcpClientMessageDto.NewEvent(evnt.EventId.ToByteArray(), evnt.EventType,
                                                     evnt.IsJson ? 1 : 0, 0, evnt.Data, evnt.Metadata)
                },
                    false);

                var package = new TcpPackage(TcpCommand.WriteEvents, Guid.NewGuid(), write.Serialize());
                connection.EnqueueSend(package.AsByteArray());
                iteration.WaitOne();
            }

            status.ReportWritesProgress(writerIdx, sent, prepareTimeouts, commitTimeouts, forwardTimeouts,
                                        wrongExpectedVersion, streamsDeleted, failed, requests);
            status.FinilizeStatus(writerIdx, failed != sent);
            context.Client.Options.Reconnect = false;
            connection.Close();
            finish.Set();
        }
예제 #7
0
        public bool Execute(CommandProcessorContext context, string[] args)
        {
            const string data            = "test-data";
            var          eventStreamId   = "test-stream";
            var          writeCount      = 10;
            var          expectedVersion = ExpectedVersion.Any;

            if (args.Length > 0)
            {
                if (args.Length > 3)
                {
                    return(false);
                }
                writeCount = int.Parse(args[0]);
                if (args.Length >= 2)
                {
                    eventStreamId = args[1];
                }
                if (args.Length >= 3)
                {
                    expectedVersion = args[2].Trim().ToUpper() == "ANY"
                                                ? ExpectedVersion.Any
                                                : int.Parse(args[2].Trim());
                }
            }

            context.IsAsync();
            var sw = new Stopwatch();

            context.Client.CreateTcpConnection(
                context,
                connectionEstablished: conn => {
                context.Log.Information("[{remoteEndPoint}, L{localEndPoint}]: Writing...", conn.RemoteEndPoint,
                                        conn.LocalEndPoint);
                var writeDto = new TcpClientMessageDto.WriteEvents(
                    eventStreamId,
                    expectedVersion,
                    Enumerable.Range(0, writeCount).Select(x => new TcpClientMessageDto.NewEvent(
                                                               Guid.NewGuid().ToByteArray(),
                                                               "type",
                                                               0, 0,
                                                               Helper.UTF8NoBom.GetBytes(data),
                                                               new byte[0])).ToArray(),
                    false);
                var package = new TcpPackage(TcpCommand.WriteEvents, Guid.NewGuid(), writeDto.Serialize())
                              .AsByteArray();
                sw.Start();
                conn.EnqueueSend(package);
            },
                handlePackage: (conn, pkg) => {
                sw.Stop();
                context.Log.Information("Write request took: {elapsed}.", sw.Elapsed);

                if (pkg.Command != TcpCommand.WriteEventsCompleted)
                {
                    context.Fail(reason: string.Format("Unexpected TCP package: {0}.", pkg.Command));
                    return;
                }

                var dto = pkg.Data.Deserialize <TcpClientMessageDto.WriteEventsCompleted>();
                if (dto.Result == TcpClientMessageDto.OperationResult.Success)
                {
                    context.Log.Information("Successfully written {writeCount} events.", writeCount);
                    PerfUtils.LogTeamCityGraphData(string.Format("{0}-latency-ms", Keyword),
                                                   (int)Math.Round(sw.Elapsed.TotalMilliseconds));
                    context.Success();
                }
                else
                {
                    context.Log.Information("Error while writing: {e}.", dto.Result);
                    context.Fail();
                }

                conn.Close();
            },
                connectionClosed: (connection, error) => context.Fail(reason: "Connection was closed prematurely."));

            context.WaitForCompletion();
            return(true);
        }
예제 #8
0
        private void Flood(CommandProcessorContext context,
                           string eventStreamId,
                           int clientsCnt,
                           int minPerSecond,
                           int maxPerSecond,
                           int runTimeMinutes)
        {
            context.IsAsync();

            var clients   = new List <TcpTypedConnection <byte[]> >();
            var threads   = new List <Thread>();
            var doneEvent = new ManualResetEvent(false);
            var done      = false;

            var succ = 0;
            var fail = 0;

            var requestsCnt = 0;

            int sent     = 0;
            int received = 0;

            var watchLockRoot = new object();
            var sw            = Stopwatch.StartNew();

            for (int i = 0; i < clientsCnt; i++)
            {
                var esId = eventStreamId ?? "Stream-" + Thread.CurrentThread.ManagedThreadId % 3;

                var client = context.Client.CreateTcpConnection(
                    context,
                    (conn, pkg) => {
                    if (pkg.Command != TcpCommand.WriteEventsCompleted)
                    {
                        context.Fail(reason: string.Format("Unexpected TCP package: {0}.", pkg.Command));
                        return;
                    }

                    var dto = pkg.Data.Deserialize <TcpClientMessageDto.WriteEventsCompleted>();
                    if (dto.Result == TcpClientMessageDto.OperationResult.Success)
                    {
                        var succDone = Interlocked.Increment(ref succ);
                        if (succDone % maxPerSecond == 0)
                        {
                            Console.Write(".");
                        }

                        Interlocked.Increment(ref requestsCnt);
                    }
                    else
                    {
                        Interlocked.Increment(ref fail);
                    }

                    Interlocked.Increment(ref received);
                },
                    connectionClosed: (conn, err) => {
                    if (!done)
                    {
                        context.Fail(reason: "Socket was closed, but not all requests were completed.");
                    }
                    else
                    {
                        context.Success();
                    }
                });
                clients.Add(client);

                threads.Add(new Thread(() => {
                    var sentCount = 0;
                    var sleepTime = 0;

                    var dataSizeCoefficient = 1;
                    var currentMinute       = -1;

                    while (true)
                    {
                        TimeSpan elapsed;
                        lock (watchLockRoot)
                            elapsed = sw.Elapsed;

                        if (elapsed.TotalMinutes > runTimeMinutes)
                        {
                            done = true;
                            doneEvent.Set();
                            break;
                        }

                        if (sentCount == 0)
                        {
                            int elapsedMinutesInt = (int)elapsed.TotalMinutes;
                            lock (_randomLockRoot) {
                                sentCount = minPerSecond == maxPerSecond
                                                                        ? maxPerSecond
                                                                        : _random.Next(minPerSecond, maxPerSecond);
                                dataSizeCoefficient = _random.Next(8, 256);
                            }

                            if (currentMinute != elapsedMinutesInt)
                            {
                                currentMinute = elapsedMinutesInt;
                                context.Log.Information(
                                    "\nElapsed {elapsed} of {runTime} minutes, sent {sent}; next block coef. {dataSizeCoefficient}",
                                    elapsedMinutesInt,
                                    runTimeMinutes,
                                    sent,
                                    dataSizeCoefficient);
                            }

                            sleepTime = 1000 / sentCount;
                        }

                        var dataSize = dataSizeCoefficient * 8;
                        var write    = new TcpClientMessageDto.WriteEvents(
                            esId,
                            ExpectedVersion.Any,
                            new[] {
                            new TcpClientMessageDto.NewEvent(
                                Guid.NewGuid().ToByteArray(),
                                "TakeSomeSpaceEvent",
                                0, 0,
                                Helper.UTF8NoBom.GetBytes(
                                    "DATA" + dataSize.ToString(" 00000 ") + new string('*', dataSize)),
                                Helper.UTF8NoBom.GetBytes("METADATA" + new string('$', 100)))
                        },
                            false);
                        var package = new TcpPackage(TcpCommand.WriteEvents, Guid.NewGuid(), write.Serialize());
                        client.EnqueueSend(package.AsByteArray());

                        Interlocked.Increment(ref sent);

                        Thread.Sleep(sleepTime);
                        sentCount -= 1;

                        while (sent - received > context.Client.Options.WriteWindow / clientsCnt)
                        {
                            Thread.Sleep(1);
                        }
                    }
                }));
            }

            foreach (var thread in threads)
            {
                thread.IsBackground = true;
                thread.Start();
            }

            doneEvent.WaitOne();
            sw.Stop();

            foreach (var client in clients)
            {
                client.Close();
            }

            context.Log.Information("Completed. Successes: {success}, failures: {failures}", succ, fail);
            var reqPerSec = (requestsCnt + 0.0) / sw.ElapsedMilliseconds * 1000;

            context.Log.Information("{requests} requests completed in {elapsed}ms ({rate:0.00} reqs per sec).",
                                    requestsCnt,
                                    sw.ElapsedMilliseconds,
                                    reqPerSec);

            PerfUtils.LogData(
                Keyword,
                PerfUtils.Row(PerfUtils.Col("clientsCnt", clientsCnt),
                              PerfUtils.Col("requestsCnt", requestsCnt),
                              PerfUtils.Col("ElapsedMilliseconds", sw.ElapsedMilliseconds)),
                PerfUtils.Row(PerfUtils.Col("successes", succ), PerfUtils.Col("failures", fail))
                );

            PerfUtils.LogTeamCityGraphData(string.Format("{0}-{1}-{2}-reqPerSec", Keyword, clientsCnt, requestsCnt),
                                           (int)reqPerSec);

            PerfUtils.LogTeamCityGraphData(
                string.Format("{0}-{1}-{2}-failureSuccessRate", Keyword, clientsCnt, requestsCnt),
                100 * fail / (fail + succ));

            context.Success();
        }
예제 #9
0
        private void WriteFlood(CommandProcessorContext context, int clientsCnt, long requestsCnt, int streamsCnt,
                                int size, int batchSize)
        {
            context.IsAsync();

            var doneEvent = new ManualResetEventSlim(false);
            var clients   = new List <TcpTypedConnection <byte[]> >();
            var threads   = new List <Thread>();

            long succ            = 0;
            long last            = 0;
            long fail            = 0;
            long prepTimeout     = 0;
            long commitTimeout   = 0;
            long forwardTimeout  = 0;
            long wrongExpVersion = 0;
            long streamDeleted   = 0;
            long all             = 0;

            var streams = Enumerable.Range(0, streamsCnt).Select(x => Guid.NewGuid().ToString()).ToArray();
            //var streams = Enumerable.Range(0, streamsCnt).Select(x => string.Format("stream-{0}", x)).ToArray();
            var sw2 = new Stopwatch();

            for (int i = 0; i < clientsCnt; i++)
            {
                var  count    = requestsCnt / clientsCnt + ((i == clientsCnt - 1) ? requestsCnt % clientsCnt : 0);
                long sent     = 0;
                long received = 0;
                var  rnd      = new Random();
                var  client   = context.Client.CreateTcpConnection(
                    context,
                    (conn, pkg) => {
                    if (pkg.Command != TcpCommand.WriteEventsCompleted)
                    {
                        context.Fail(reason: string.Format("Unexpected TCP package: {0}.", pkg.Command));
                        return;
                    }

                    var dto = pkg.Data.Deserialize <TcpClientMessageDto.WriteEventsCompleted>();
                    _monitor.EndOperation(pkg.CorrelationId);
                    switch (dto.Result)
                    {
                    case TcpClientMessageDto.OperationResult.Success:
                        Interlocked.Add(ref succ, batchSize);
                        if (succ - last > 1000)
                        {
                            last = succ;
                            Console.Write(".");
                        }

                        break;

                    case TcpClientMessageDto.OperationResult.PrepareTimeout:
                        Interlocked.Increment(ref prepTimeout);
                        break;

                    case TcpClientMessageDto.OperationResult.CommitTimeout:
                        Interlocked.Increment(ref commitTimeout);
                        break;

                    case TcpClientMessageDto.OperationResult.ForwardTimeout:
                        Interlocked.Increment(ref forwardTimeout);
                        break;

                    case TcpClientMessageDto.OperationResult.WrongExpectedVersion:
                        Interlocked.Increment(ref wrongExpVersion);
                        break;

                    case TcpClientMessageDto.OperationResult.StreamDeleted:
                        Interlocked.Increment(ref streamDeleted);
                        break;

                    default:
                        throw new ArgumentOutOfRangeException();
                    }

                    if (dto.Result != TcpClientMessageDto.OperationResult.Success)
                    {
                        if (Interlocked.Increment(ref fail) % 1000 == 0)
                        {
                            Console.Write('#');
                        }
                    }
                    Interlocked.Increment(ref received);
                    var localAll = Interlocked.Add(ref all, batchSize);
                    if (localAll % 100000 == 0)
                    {
                        var elapsed = sw2.Elapsed;
                        sw2.Restart();
                        context.Log.Trace(
                            "\nDONE TOTAL {writes} WRITES IN {elapsed} ({rate:0.0}/s) [S:{success}, F:{failures} (WEV:{wrongExpectedVersion}, P:{prepareTimeout}, C:{commitTimeout}, F:{forwardTimeout}, D:{streamDeleted})].",
                            localAll, elapsed, 1000.0 * 100000 / elapsed.TotalMilliseconds,
                            succ, fail,
                            wrongExpVersion, prepTimeout, commitTimeout, forwardTimeout, streamDeleted);
                    }

                    if (localAll >= requestsCnt)
                    {
                        context.Success();
                        doneEvent.Set();
                    }
                },
                    connectionClosed: (conn, err) => context.Fail(reason: "Connection was closed prematurely."));
                clients.Add(client);

                threads.Add(new Thread(() => {
                    for (int j = 0; j < count; ++j)
                    {
                        var events = new TcpClientMessageDto.NewEvent[batchSize];
                        for (int q = 0; q < batchSize; q++)
                        {
                            events[q] = new TcpClientMessageDto.NewEvent(Guid.NewGuid().ToByteArray(),
                                                                         "TakeSomeSpaceEvent",
                                                                         1, 0,
                                                                         Common.Utils.Helper.UTF8NoBom.GetBytes(
                                                                             "{ \"DATA\" : \"" + new string('*', size) + "\"}"),
                                                                         Common.Utils.Helper.UTF8NoBom.GetBytes(
                                                                             "{ \"METADATA\" : \"" + new string('$', 100) + "\"}"));
                        }

                        var corrid = Guid.NewGuid();
                        var write  = new TcpClientMessageDto.WriteEvents(
                            streams[rnd.Next(streamsCnt)],
                            ExpectedVersion.Any,
                            events,
                            false);
                        var package = new TcpPackage(TcpCommand.WriteEvents, corrid, write.Serialize());
                        _monitor.StartOperation(corrid);
                        client.EnqueueSend(package.AsByteArray());

                        var localSent = Interlocked.Increment(ref sent);
                        while (localSent - Interlocked.Read(ref received) >
                               context.Client.Options.WriteWindow / clientsCnt)
                        {
                            Thread.Sleep(1);
                        }
                    }
                })
                {
                    IsBackground = true
                });
            }

            var sw = Stopwatch.StartNew();

            sw2.Start();
            threads.ForEach(thread => thread.Start());
            doneEvent.Wait();
            sw.Stop();
            clients.ForEach(client => client.Close());

            context.Log.Info(
                "Completed. Successes: {success}, failures: {failures} (WRONG VERSION: {wrongExpectedVersion}, P: {prepareTimeout}, C: {commitTimeout}, F: {forwardTimeout}, D: {streamDeleted})",
                succ, fail,
                wrongExpVersion, prepTimeout, commitTimeout, forwardTimeout, streamDeleted);

            var reqPerSec = (all + 0.0) / sw.ElapsedMilliseconds * 1000;

            context.Log.Info("{requests} requests completed in {elapsed}ms ({rate:0.00} reqs per sec).", all,
                             sw.ElapsedMilliseconds, reqPerSec);

            PerfUtils.LogData(
                Keyword,
                PerfUtils.Row(PerfUtils.Col("clientsCnt", clientsCnt),
                              PerfUtils.Col("requestsCnt", requestsCnt),
                              PerfUtils.Col("ElapsedMilliseconds", sw.ElapsedMilliseconds)),
                PerfUtils.Row(PerfUtils.Col("successes", succ), PerfUtils.Col("failures", fail)));

            var failuresRate = (int)(100 * fail / (fail + succ));

            PerfUtils.LogTeamCityGraphData(string.Format("{0}-{1}-{2}-reqPerSec", Keyword, clientsCnt, requestsCnt),
                                           (int)reqPerSec);
            PerfUtils.LogTeamCityGraphData(
                string.Format("{0}-{1}-{2}-failureSuccessRate", Keyword, clientsCnt, requestsCnt), failuresRate);
            PerfUtils.LogTeamCityGraphData(
                string.Format("{0}-c{1}-r{2}-st{3}-s{4}-reqPerSec", Keyword, clientsCnt, requestsCnt, streamsCnt, size),
                (int)reqPerSec);
            PerfUtils.LogTeamCityGraphData(
                string.Format("{0}-c{1}-r{2}-st{3}-s{4}-failureSuccessRate", Keyword, clientsCnt, requestsCnt,
                              streamsCnt, size), failuresRate);
            _monitor.GetMeasurementDetails();
            if (Interlocked.Read(ref succ) != requestsCnt)
            {
                context.Fail(reason: "There were errors or not all requests completed.");
            }
            else
            {
                context.Success();
            }
        }
        public bool Execute(CommandProcessorContext context, string[] args)
        {
            var    eventStreamId   = "test-stream";
            var    expectedVersion = ExpectedVersion.Any;
            var    data            = GenerateTestData();
            string metadata        = null;

            if (args.Length > 0)
            {
                if (args.Length < 3 || args.Length > 4)
                {
                    return(false);
                }
                eventStreamId   = args[0];
                expectedVersion = args[1].ToUpper() == "ANY" ? ExpectedVersion.Any : int.Parse(args[1]);
                data            = args[2];
                if (args.Length == 4)
                {
                    metadata = args[3];
                }
            }

            context.IsAsync();
            var writeDto = new TcpClientMessageDto.WriteEvents(
                eventStreamId,
                expectedVersion,
                new[]
            {
                new TcpClientMessageDto.NewEvent(Guid.NewGuid().ToByteArray(),
                                                 "JsonDataEvent",
                                                 1, 0,
                                                 Helper.UTF8NoBom.GetBytes(data),
                                                 Helper.UTF8NoBom.GetBytes(metadata ?? string.Empty))
            },
                false);
            var package = new TcpPackage(TcpCommand.WriteEvents, Guid.NewGuid(), writeDto.Serialize());

            var  sw           = new Stopwatch();
            bool dataReceived = false;

            context.Client.CreateTcpConnection(
                context,
                connectionEstablished: conn =>
            {
                context.Log.Info("[{0}, L{1}]: Writing...", conn.RemoteEndPoint, conn.LocalEndPoint);
                sw.Start();
                conn.EnqueueSend(package.AsByteArray());
            },
                handlePackage: (conn, pkg) =>
            {
                if (pkg.Command != TcpCommand.WriteEventsCompleted)
                {
                    context.Fail(reason: string.Format("Unexpected TCP package: {0}.", pkg.Command));
                    return;
                }

                dataReceived = true;
                sw.Stop();

                var dto = pkg.Data.Deserialize <TcpClientMessageDto.WriteEventsCompleted>();
                if (dto.Result == TcpClientMessageDto.OperationResult.Success)
                {
                    context.Log.Info("Successfully written. EventId: {0}.", package.CorrelationId);
                    PerfUtils.LogTeamCityGraphData(string.Format("{0}-latency-ms", Keyword), (int)Math.Round(sw.Elapsed.TotalMilliseconds));
                }
                else
                {
                    context.Log.Info("Error while writing: {0} ({1}).", dto.Message, dto.Result);
                }

                context.Log.Info("Write request took: {0}.", sw.Elapsed);
                conn.Close();
                context.Success();
            },
                connectionClosed: (connection, error) =>
            {
                if (dataReceived && error == SocketError.Success)
                {
                    context.Success();
                }
                else
                {
                    context.Fail();
                }
            });

            context.WaitForCompletion();
            return(true);
        }
예제 #11
0
        private void WriteFlood(CommandProcessorContext context, int clientsCnt, long requestsCnt, int streamsCnt)
        {
            context.IsAsync();

            var doneEvent = new AutoResetEvent(false);
            var clients   = new List <TcpTypedConnection <byte[]> >();
            var threads   = new List <Thread>();

            long succ            = 0;
            long fail            = 0;
            long prepTimeout     = 0;
            long commitTimeout   = 0;
            long forwardTimeout  = 0;
            long wrongExpVersion = 0;
            long streamDeleted   = 0;
            long all             = 0;

            var streams = Enumerable.Range(0, streamsCnt).Select(x => Guid.NewGuid().ToString()).ToArray();
            var sw2     = new Stopwatch();

            for (int i = 0; i < clientsCnt; i++)
            {
                var count = requestsCnt / clientsCnt + ((i == clientsCnt - 1) ? requestsCnt % clientsCnt : 0);

                int sent     = 0;
                int received = 0;
                var rnd      = new Random();

                var client = context.Client.CreateTcpConnection(
                    context,
                    (conn, pkg) =>
                {
                    if (pkg.Command != TcpCommand.WriteEventsCompleted)
                    {
                        context.Fail(reason: string.Format("Unexpected TCP package: {0}.", pkg.Command));
                        return;
                    }

                    var dto = pkg.Data.Deserialize <TcpClientMessageDto.WriteEventsCompleted>();
                    switch ((OperationErrorCode)dto.ErrorCode)
                    {
                    case OperationErrorCode.Success:
                        Interlocked.Increment(ref succ);
                        break;

                    case OperationErrorCode.PrepareTimeout:
                        Interlocked.Increment(ref prepTimeout);
                        break;

                    case OperationErrorCode.CommitTimeout:
                        Interlocked.Increment(ref commitTimeout);
                        break;

                    case OperationErrorCode.ForwardTimeout:
                        Interlocked.Increment(ref forwardTimeout);
                        break;

                    case OperationErrorCode.WrongExpectedVersion:
                        Interlocked.Increment(ref wrongExpVersion);
                        break;

                    case OperationErrorCode.StreamDeleted:
                        Interlocked.Increment(ref streamDeleted);
                        break;

                    default:
                        throw new ArgumentOutOfRangeException();
                    }
                    if (dto.ErrorCode != (int)OperationErrorCode.Success)
                    {
                        Interlocked.Increment(ref fail);
                    }

                    Interlocked.Increment(ref received);

                    var localAll = Interlocked.Increment(ref all);
                    if (localAll % 1000 == 0)
                    {
                        Console.Write(".");
                    }
                    if (localAll % 100000 == 0)
                    {
                        var elapsed = sw2.Elapsed;
                        sw2.Restart();
                        context.Log.Trace("\nDONE TOTAL {0} WRITES IN {1} ({2:0.0}/s).",
                                          localAll,
                                          elapsed,
                                          1000.0 * 100000 / elapsed.TotalMilliseconds);
                    }
                    if (localAll == requestsCnt)
                    {
                        doneEvent.Set();
                    }
                },
                    connectionClosed: (conn, err) =>
                {
                    if (all < requestsCnt)
                    {
                        context.Fail(null, "Socket was closed, but not all requests were completed.");
                    }
                    else
                    {
                        context.Success();
                    }
                });

                clients.Add(client);

                threads.Add(new Thread(() =>
                {
                    for (int j = 0; j < count; ++j)
                    {
                        var write = new TcpClientMessageDto.WriteEvents(
                            streams[rnd.Next(streamsCnt)],
                            ExpectedVersion.Any,
                            new[]
                        {
                            new TcpClientMessageDto.ClientEvent(Guid.NewGuid().ToByteArray(),
                                                                "TakeSomeSpaceEvent",
                                                                false,
                                                                Encoding.UTF8.GetBytes("DATA" + new string('*', 256)),
                                                                Encoding.UTF8.GetBytes("METADATA" + new string('$', 100)))
                        },
                            true);
                        var package = new TcpPackage(TcpCommand.WriteEvents, Guid.NewGuid(), write.Serialize());
                        client.EnqueueSend(package.AsByteArray());

                        Interlocked.Increment(ref sent);
                        while (sent - received > context.Client.Options.WriteWindow)
                        {
                            Thread.Sleep(1);
                        }
                    }
                }));
            }

            var sw = Stopwatch.StartNew();

            sw2.Start();
            foreach (var thread in threads)
            {
                thread.IsBackground = true;
                thread.Start();
            }
            doneEvent.WaitOne();
            sw.Stop();

            foreach (var client in clients)
            {
                client.Close();
            }

            context.Log.Info("Completed. Successes: {0}, failures: {1} (WRONG VERSION: {2}, P: {3}, C: {4}, F: {5}, D: {6})",
                             succ,
                             fail,
                             wrongExpVersion,
                             prepTimeout,
                             commitTimeout,
                             forwardTimeout,
                             streamDeleted);

            var reqPerSec = (all + 0.0) / sw.ElapsedMilliseconds * 1000;

            context.Log.Info("{0} requests completed in {1}ms ({2:0.00} reqs per sec).",
                             all,
                             sw.ElapsedMilliseconds,
                             reqPerSec);

            PerfUtils.LogData(
                Keyword,
                PerfUtils.Row(PerfUtils.Col("clientsCnt", clientsCnt),
                              PerfUtils.Col("requestsCnt", requestsCnt),
                              PerfUtils.Col("ElapsedMilliseconds", sw.ElapsedMilliseconds)),
                PerfUtils.Row(PerfUtils.Col("successes", succ), PerfUtils.Col("failures", fail)));

            PerfUtils.LogTeamCityGraphData(string.Format("{0}-{1}-{2}-reqPerSec", Keyword, clientsCnt, requestsCnt),
                                           (int)reqPerSec);

            PerfUtils.LogTeamCityGraphData(
                string.Format("{0}-{1}-{2}-failureSuccessRate", Keyword, clientsCnt, requestsCnt),
                100 * fail / (fail + succ));

            if (succ < fail)
            {
                context.Fail(reason: "Number of failures is greater than number of successes");
            }
            else
            {
                context.Success();
            }
        }
        private void WriteFlood(CommandProcessorContext context, int clientsCnt, int requestsCnt)
        {
            context.IsAsync();

            var clients        = new List <TcpTypedConnection <byte[]> >();
            var threads        = new List <Thread>();
            var autoResetEvent = new AutoResetEvent(false);

            var succ = 0;
            var fail = 0;
            var all  = 0;

            for (int i = 0; i < clientsCnt; i++)
            {
                var count = requestsCnt / clientsCnt + ((i == clientsCnt - 1) ? requestsCnt % clientsCnt : 0);

                var autoEvent     = new AutoResetEvent(false);
                var eventStreamId = "es" + Guid.NewGuid();

                var client = context.Client.CreateTcpConnection(
                    context,
                    (conn, pkg) =>
                {
                    if (pkg.Command != TcpCommand.WriteEventsCompleted)
                    {
                        context.Fail(reason: string.Format("Unexpected TCP package: {0}.", pkg.Command));
                        return;
                    }

                    var dto = pkg.Data.Deserialize <TcpClientMessageDto.WriteEventsCompleted>();
                    if (dto.ErrorCode == (int)OperationErrorCode.Success)
                    {
                        if (Interlocked.Increment(ref succ) % 1000 == 0)
                        {
                            Console.Write(".");
                        }
                    }
                    else
                    {
                        Interlocked.Increment(ref fail);
                    }

                    if (Interlocked.Increment(ref all) == requestsCnt)
                    {
                        autoResetEvent.Set();
                    }
                    autoEvent.Set();
                },
                    connectionClosed: (conn, err) =>
                {
                    if (all < requestsCnt)
                    {
                        context.Fail(null, "Socket was closed, but not all requests were completed.");
                    }
                    else
                    {
                        context.Success();
                    }
                });
                clients.Add(client);

                threads.Add(new Thread(() =>
                {
                    for (int j = 0; j < count; ++j)
                    {
                        var write = new TcpClientMessageDto.WriteEvents(
                            eventStreamId,
                            ExpectedVersion.Any,
                            new[]
                        {
                            new TcpClientMessageDto.ClientEvent(Guid.NewGuid().ToByteArray(),
                                                                "TakeSomeSpaceEvent",
                                                                false,
                                                                Encoding.UTF8.GetBytes("DATA" + new string('*', 256)),
                                                                Encoding.UTF8.GetBytes("METADATA" + new string('$', 100)))
                        },
                            true);
                        var package = new TcpPackage(TcpCommand.WriteEvents, Guid.NewGuid(), write.Serialize());
                        client.EnqueueSend(package.AsByteArray());
                        autoEvent.WaitOne();
                    }
                }));
            }

            var sw = Stopwatch.StartNew();

            foreach (var thread in threads)
            {
                thread.IsBackground = true;
                thread.Start();
            }
            autoResetEvent.WaitOne();
            sw.Stop();

            foreach (var client in clients)
            {
                client.Close();
            }

            context.Log.Info("Completed. Successes: {0}, failures: {1}", succ, fail);

            var reqPerSec = (requestsCnt + 0.0) / sw.ElapsedMilliseconds * 1000;

            context.Log.Info("{0} requests completed in {1}ms ({2:0.00} reqs per sec).",
                             all,
                             sw.ElapsedMilliseconds,
                             reqPerSec);

            PerfUtils.LogData(
                Keyword,
                PerfUtils.Row(PerfUtils.Col("clientsCnt", clientsCnt),
                              PerfUtils.Col("requestsCnt", requestsCnt),
                              PerfUtils.Col("ElapsedMilliseconds", sw.ElapsedMilliseconds)),
                PerfUtils.Row(PerfUtils.Col("successes", succ), PerfUtils.Col("failures", fail)));

            PerfUtils.LogTeamCityGraphData(string.Format("{0}-{1}-{2}-reqPerSec", Keyword, clientsCnt, requestsCnt),
                                           (int)reqPerSec);

            PerfUtils.LogTeamCityGraphData(
                string.Format("{0}-{1}-{2}-failureSuccessRate", Keyword, clientsCnt, requestsCnt),
                100 * fail / (fail + succ));

            PerfUtils.LogTeamCityGraphData(string.Format("{0}-latency-ms", Keyword),
                                           (int)(sw.ElapsedMilliseconds / requestsCnt));

            if (succ < fail)
            {
                context.Fail(reason: "Number of failures is greater than number of successes");
            }
            else
            {
                context.Success();
            }
        }
예제 #13
0
        private void WriteFlood(CommandProcessorContext context, int writeCnt, int clientsCnt, long requestsCnt)
        {
            const string data = "test-data";

            context.IsAsync();

            var  clients   = new List <TcpTypedConnection <byte[]> >();
            var  threads   = new List <Thread>();
            var  doneEvent = new ManualResetEventSlim(false);
            long succ      = 0;
            long fail      = 0;
            long all       = 0;

            for (int i = 0; i < clientsCnt; i++)
            {
                var count          = requestsCnt / clientsCnt + ((i == clientsCnt - 1) ? requestsCnt % clientsCnt : 0);
                var localDoneEvent = new AutoResetEvent(false);
                var eventStreamId  = "es" + Guid.NewGuid();
                var client         = context._tcpTestClient.CreateTcpConnection(
                    context,
                    (conn, pkg) => {
                    if (pkg.Command != TcpCommand.WriteEventsCompleted)
                    {
                        context.Fail(reason: string.Format("Unexpected TCP package: {0}.", pkg.Command));
                        return;
                    }

                    var dto = pkg.Data.Deserialize <TcpClientMessageDto.WriteEventsCompleted>();
                    if (dto.Result == TcpClientMessageDto.OperationResult.Success)
                    {
                        if (Interlocked.Increment(ref succ) % 1000 == 0)
                        {
                            Console.Write(".");
                        }
                    }
                    else
                    {
                        if (Interlocked.Increment(ref fail) % 1000 == 0)
                        {
                            Console.Write("#");
                        }
                    }

                    if (Interlocked.Increment(ref all) == requestsCnt)
                    {
                        context.Success();
                        doneEvent.Set();
                    }

                    localDoneEvent.Set();
                },
                    connectionClosed: (conn, err) => context.Fail(reason: "Connection was closed prematurely."));
                clients.Add(client);

                threads.Add(new Thread(() => {
                    for (int j = 0; j < count; ++j)
                    {
                        var writeDto = new TcpClientMessageDto.WriteEvents(
                            eventStreamId,
                            ExpectedVersion.Any,
                            Enumerable.Range(0, writeCnt).Select(x =>
                                                                 new TcpClientMessageDto.NewEvent(Guid.NewGuid().ToByteArray(),
                                                                                                  "type",
                                                                                                  0, 0,
                                                                                                  Common.Utils.Helper.UTF8NoBom.GetBytes(data),
                                                                                                  new byte[0])).ToArray(),
                            false);
                        var package = new TcpPackage(TcpCommand.WriteEvents, Guid.NewGuid(), writeDto.Serialize());
                        client.EnqueueSend(package.AsByteArray());
                        localDoneEvent.WaitOne();
                    }
                })
                {
                    IsBackground = true
                });
            }

            var sw = Stopwatch.StartNew();

            threads.ForEach(thread => thread.Start());
            doneEvent.Wait();
            sw.Stop();
            clients.ForEach(client => client.Close());

            var reqPerSec = (all + 0.0) / sw.ElapsedMilliseconds * 1000;

            context.Log.Information("Completed. Successes: {success}, failures: {failures}", succ, fail);
            context.Log.Information("{requests} requests completed in {elapsed}ms ({rate:0.00} reqs per sec).", all,
                                    sw.ElapsedMilliseconds, reqPerSec);

            PerfUtils.LogData(Keyword,
                              PerfUtils.Row(PerfUtils.Col("clientsCnt", clientsCnt),
                                            PerfUtils.Col("requestsCnt", requestsCnt),
                                            PerfUtils.Col("ElapsedMilliseconds", sw.ElapsedMilliseconds)),
                              PerfUtils.Row(PerfUtils.Col("successes", succ), PerfUtils.Col("failures", fail)));
            PerfUtils.LogTeamCityGraphData(string.Format("{0}-{1}-{2}-reqPerSec", Keyword, clientsCnt, requestsCnt),
                                           (int)reqPerSec);
            PerfUtils.LogTeamCityGraphData(
                string.Format("{0}-{1}-{2}-failureSuccessRate", Keyword, clientsCnt, requestsCnt),
                (int)(100.0 * fail / (fail + succ)));
            PerfUtils.LogTeamCityGraphData(string.Format("{0}-latency-ms", Keyword),
                                           (int)Math.Round(sw.Elapsed.TotalMilliseconds / requestsCnt));

            if (succ != requestsCnt)
            {
                context.Fail(reason: "There were errors or not all requests completed.");
            }
            else
            {
                context.Success();
            }
        }
예제 #14
0
        public bool Execute(CommandProcessorContext context, string[] args)
        {
            var          eventStreamId   = "test-stream";
            const string data            = "test-data";
            var          writeCount      = 10;
            var          expectedVersion = ExpectedVersion.Any;

            if (args.Length > 0)
            {
                if (args.Length > 3)
                {
                    return(false);
                }
                writeCount = int.Parse(args[0]);
                if (args.Length >= 2)
                {
                    eventStreamId = args[1];
                }
                if (args.Length >= 3)
                {
                    expectedVersion = args[2].Trim().ToUpper() == "ANY" ? ExpectedVersion.Any : int.Parse(args[2].Trim());
                }
            }

            context.IsAsync();
            var writeDto = new TcpClientMessageDto.WriteEvents(
                eventStreamId,
                expectedVersion,
                Enumerable.Range(0, writeCount).Select(x =>
                                                       new TcpClientMessageDto.ClientEvent(Guid.NewGuid().ToByteArray(),
                                                                                           "type",
                                                                                           false,
                                                                                           Encoding.UTF8.GetBytes(data),
                                                                                           new byte[0])).ToArray(),
                true);

            var package = new TcpPackage(TcpCommand.WriteEvents, Guid.NewGuid(), writeDto.Serialize());

            var sw = new Stopwatch();

            context.Client.CreateTcpConnection(
                context,
                connectionEstablished: conn =>
            {
                context.Log.Info("[{0}]: Writing...", conn.EffectiveEndPoint);
                sw.Start();
                conn.EnqueueSend(package.AsByteArray());
            },
                handlePackage: (conn, pkg) =>
            {
                if (pkg.Command != TcpCommand.WriteEventsCompleted)
                {
                    context.Fail(reason: string.Format("Unexpected TCP package: {0}.", pkg.Command));
                    return;
                }

                sw.Stop();

                var dto = pkg.Data.Deserialize <TcpClientMessageDto.WriteEventsCompleted>();
                if (dto.ErrorCode == (int)OperationErrorCode.Success)
                {
                    context.Log.Info("Successfully written {0} events. CorrelationId: {1}.", writeCount, package.CorrelationId);
                    PerfUtils.LogTeamCityGraphData(string.Format("{0}-latency-ms", Keyword), (int)sw.ElapsedMilliseconds);
                }
                else
                {
                    context.Log.Info("Error while writing: {0}. CorrelationId: {1}.", dto.Error, package.CorrelationId);
                }
                context.Log.Info("Write request took: {0}.", sw.Elapsed);

                conn.Close();
                context.Success();
            },
                connectionClosed: (connection, error) =>
            {
                if (error == SocketError.Success)
                {
                    context.Success();
                }
                else
                {
                    context.Fail();
                }
            });

            context.WaitForCompletion();
            return(true);
        }