public void the_data_is_written()
{
//TODO MAKE THIS ACTUALLY ASSERT OFF THE FILE AND READER FROM KNOWN FILE
using (var reader = new TFChunkChaser(_db, _writerCheckpoint, _db.Config.ChaserCheckpoint))
{
reader.Open();
LogRecord r;
Assert.IsTrue(reader.TryReadNext(out r));
Assert.True(r is PrepareLogRecord);
var p = (PrepareLogRecord) r;
Assert.AreEqual(p.RecordType, LogRecordType.Prepare);
Assert.AreEqual(p.LogPosition, 0);
Assert.AreEqual(p.TransactionPosition, 0xDEAD);
Assert.AreEqual(p.TransactionOffset, 0xBEEF);
Assert.AreEqual(p.CorrelationId, _correlationId);
Assert.AreEqual(p.EventId, _eventId);
Assert.AreEqual(p.EventStreamId, "WorldEnding");
Assert.AreEqual(p.ExpectedVersion, 1234);
Assert.AreEqual(p.TimeStamp, new DateTime(2012, 12, 21));
Assert.AreEqual(p.Flags, PrepareFlags.SingleWrite);
Assert.AreEqual(p.EventType, "type");
Assert.AreEqual(p.Data.Length, 5);
Assert.AreEqual(p.Metadata.Length, 2);
}
}
public void try_read_returns_false_when_writer_checksum_is_equal_to_reader_checksum()
{
var writerchk = new InMemoryCheckpoint();
var chaserchk = new InMemoryCheckpoint(Checkpoint.Chaser, 0);
var db = new TFChunkDb(new TFChunkDbConfig(PathName,
new VersionedPatternFileNamingStrategy(PathName, "chunk-"),
10000,
0,
writerchk,
chaserchk,
new InMemoryCheckpoint(-1),
new InMemoryCheckpoint(-1)));
db.Open();
writerchk.Write(12);
writerchk.Flush();
chaserchk.Write(12);
chaserchk.Flush();
var chaser = new TFChunkChaser(db, writerchk, chaserchk);
chaser.Open();
LogRecord record;
Assert.IsFalse(chaser.TryReadNext(out record));
Assert.AreEqual(12, chaserchk.Read());
chaser.Close();
db.Dispose();
}
public void the_data_is_written()
{
using (var reader = new TFChunkChaser(_db, _writerCheckpoint, _db.Config.ChaserCheckpoint))
{
reader.Open();
LogRecord r;
Assert.IsTrue(reader.TryReadNext(out r));
Assert.True(r is CommitLogRecord);
var c = (CommitLogRecord) r;
Assert.AreEqual(c.RecordType, LogRecordType.Commit);
Assert.AreEqual(c.LogPosition, 0);
Assert.AreEqual(c.CorrelationId, _eventId);
Assert.AreEqual(c.TransactionPosition, 4321);
Assert.AreEqual(c.TimeStamp, new DateTime(2012, 12, 21));
}
}
public void try_read_returns_false_when_writer_checkpoint_is_zero()
{
var writerchk = new InMemoryCheckpoint(0);
var db = new TFChunkDb(new TFChunkDbConfig(PathName,
new PrefixFileNamingStrategy(PathName, "prefix.tf"),
10000,
0,
writerchk,
new ICheckpoint[0]));
db.OpenVerifyAndClean();
var chaser = new TFChunkChaser(db, writerchk, new InMemoryCheckpoint());
chaser.Open();
LogRecord record;
Assert.IsFalse(chaser.TryReadNext(out record));
chaser.Close();
db.Dispose();
}
public void try_read_returns_false_when_writer_checkpoint_is_zero()
{
var writerchk = new InMemoryCheckpoint(0);
var db = new TFChunkDb(new TFChunkDbConfig(PathName,
new VersionedPatternFileNamingStrategy(PathName, "chunk-"),
10000,
0,
writerchk,
new InMemoryCheckpoint(),
new InMemoryCheckpoint(-1),
new InMemoryCheckpoint(-1)));
db.Open();
var chaser = new TFChunkChaser(db, writerchk, new InMemoryCheckpoint());
chaser.Open();
LogRecord record;
Assert.IsFalse(chaser.TryReadNext(out record));
chaser.Close();
db.Dispose();
}
public SingleVNode(TFChunkDb db, SingleVNodeSettings vNodeSettings, SingleVNodeAppSettings appSettings)
{
Ensure.NotNull(db, "db");
Ensure.NotNull(vNodeSettings, "vNodeSettings");
db.OpenVerifyAndClean();
_tcpEndPoint = vNodeSettings.ExternalTcpEndPoint;
_httpEndPoint = vNodeSettings.HttpEndPoint;
_outputBus = new InMemoryBus("OutputBus");
_controller = new SingleVNodeController(Bus, _httpEndPoint);
_mainQueue = new QueuedHandler(_controller, "MainQueue");
_controller.SetMainQueue(MainQueue);
//MONITORING
var monitoringInnerBus = new InMemoryBus("MonitoringInnerBus", watchSlowMsg: false);
var monitoringRequestBus = new InMemoryBus("MonitoringRequestBus", watchSlowMsg: false);
var monitoringQueue = new QueuedHandler(monitoringInnerBus, "MonitoringQueue", watchSlowMsg: true, slowMsgThresholdMs: 100);
var monitoring = new MonitoringService(monitoringQueue, monitoringRequestBus, db.Config.WriterCheckpoint, appSettings.StatsPeriod);
Bus.Subscribe(monitoringQueue.WidenFrom<SystemMessage.SystemInit, Message>());
Bus.Subscribe(monitoringQueue.WidenFrom<SystemMessage.BecomeShuttingDown, Message>());
monitoringInnerBus.Subscribe<SystemMessage.SystemInit>(monitoring);
monitoringInnerBus.Subscribe<SystemMessage.BecomeShuttingDown>(monitoring);
monitoringInnerBus.Subscribe<MonitoringMessage.GetFreshStats>(monitoring);
//STORAGE SUBSYSTEM
var indexPath = Path.Combine(db.Config.Path, "index");
var tableIndex = new TableIndex(indexPath,
() => new HashListMemTable(),
new InMemoryCheckpoint(),
maxSizeForMemory: 1000000,
maxTablesPerLevel: 2);
var readIndex = new ReadIndex(_mainQueue,
db,
() => new TFChunkReader(db, db.Config.WriterCheckpoint),
TFConsts.ReadIndexReaderCount,
db.Config.WriterCheckpoint,
tableIndex,
new XXHashUnsafe());
var writer = new TFChunkWriter(db);
var storageWriter = new StorageWriter(_mainQueue, _outputBus, writer, readIndex);
var storageReader = new StorageReader(_mainQueue, _outputBus, readIndex, TFConsts.StorageReaderHandlerCount);
monitoringRequestBus.Subscribe<MonitoringMessage.InternalStatsRequest>(storageReader);
var chaser = new TFChunkChaser(db,
db.Config.WriterCheckpoint,
db.Config.GetNamedCheckpoint(Checkpoint.Chaser));
var storageChaser = new StorageChaser(_mainQueue, chaser);
_outputBus.Subscribe<SystemMessage.SystemInit>(storageChaser);
_outputBus.Subscribe<SystemMessage.SystemStart>(storageChaser);
_outputBus.Subscribe<SystemMessage.BecomeShuttingDown>(storageChaser);
var storageScavenger = new StorageScavenger(db, readIndex);
_outputBus.Subscribe<SystemMessage.ScavengeDatabase>(storageScavenger);
//TCP
var tcpService = new TcpService(MainQueue, _tcpEndPoint);
Bus.Subscribe<SystemMessage.SystemInit>(tcpService);
Bus.Subscribe<SystemMessage.SystemStart>(tcpService);
Bus.Subscribe<SystemMessage.BecomeShuttingDown>(tcpService);
//HTTP
HttpService = new HttpService(MainQueue, _httpEndPoint.ToHttpUrl());
Bus.Subscribe<SystemMessage.SystemInit>(HttpService);
Bus.Subscribe<SystemMessage.BecomeShuttingDown>(HttpService);
Bus.Subscribe<HttpMessage.SendOverHttp>(HttpService);
Bus.Subscribe<HttpMessage.UpdatePendingRequests>(HttpService);
HttpService.SetupController(new AdminController(MainQueue));
HttpService.SetupController(new PingController());
HttpService.SetupController(new StatController(monitoringQueue));
HttpService.SetupController(new ReadEventDataController(MainQueue));
HttpService.SetupController(new AtomController(MainQueue));
HttpService.SetupController(new WebSiteController(MainQueue));
//REQUEST MANAGEMENT
var requestManagement = new RequestManagementService(MainQueue, 1, 1);
Bus.Subscribe<ReplicationMessage.EventCommited>(requestManagement);
Bus.Subscribe<ReplicationMessage.CreateStreamRequestCreated>(requestManagement);
Bus.Subscribe<ReplicationMessage.WriteRequestCreated>(requestManagement);
Bus.Subscribe<ReplicationMessage.TransactionStartRequestCreated>(requestManagement);
Bus.Subscribe<ReplicationMessage.TransactionWriteRequestCreated>(requestManagement);
Bus.Subscribe<ReplicationMessage.TransactionCommitRequestCreated>(requestManagement);
Bus.Subscribe<ReplicationMessage.DeleteStreamRequestCreated>(requestManagement);
Bus.Subscribe<ReplicationMessage.RequestCompleted>(requestManagement);
Bus.Subscribe<ReplicationMessage.CommitAck>(requestManagement);
Bus.Subscribe<ReplicationMessage.PrepareAck>(requestManagement);
Bus.Subscribe<ReplicationMessage.WrongExpectedVersion>(requestManagement);
Bus.Subscribe<ReplicationMessage.InvalidTransaction>(requestManagement);
Bus.Subscribe<ReplicationMessage.StreamDeleted>(requestManagement);
Bus.Subscribe<ReplicationMessage.PreparePhaseTimeout>(requestManagement);
Bus.Subscribe<ReplicationMessage.CommitPhaseTimeout>(requestManagement);
var clientService = new ClientService();
Bus.Subscribe<TcpMessage.ConnectionClosed>(clientService);
Bus.Subscribe<ClientMessage.SubscribeToStream>(clientService);
Bus.Subscribe<ClientMessage.UnsubscribeFromStream>(clientService);
Bus.Subscribe<ClientMessage.SubscribeToAllStreams>(clientService);
Bus.Subscribe<ClientMessage.UnsubscribeFromAllStreams>(clientService);
Bus.Subscribe<ReplicationMessage.EventCommited>(clientService);
//TIMER
//var timer = new TimerService(new TimerBasedScheduler(new RealTimer(), new RealTimeProvider()));
TimerService = new TimerService(new ThreadBasedScheduler(new RealTimeProvider()));
Bus.Subscribe<TimerMessage.Schedule>(TimerService);
MainQueue.Start();
monitoringQueue.Start();
}
public SingleVNode(TFChunkDb db,
SingleVNodeSettings vNodeSettings,
bool dbVerifyHashes,
int memTableEntryCount,
params ISubsystem[] subsystems)
{
Ensure.NotNull(db, "db");
Ensure.NotNull(vNodeSettings, "vNodeSettings");
_settings = vNodeSettings;
_mainBus = new InMemoryBus("MainBus");
_controller = new SingleVNodeController(_mainBus, _settings.ExternalHttpEndPoint, db, this);
_mainQueue = new QueuedHandler(_controller, "MainQueue");
_controller.SetMainQueue(_mainQueue);
_subsystems = subsystems;
// MONITORING
var monitoringInnerBus = new InMemoryBus("MonitoringInnerBus", watchSlowMsg: false);
var monitoringRequestBus = new InMemoryBus("MonitoringRequestBus", watchSlowMsg: false);
var monitoringQueue = new QueuedHandlerThreadPool(monitoringInnerBus, "MonitoringQueue", true, TimeSpan.FromMilliseconds(100));
var monitoring = new MonitoringService(monitoringQueue,
monitoringRequestBus,
_mainQueue,
db.Config.WriterCheckpoint,
db.Config.Path,
vNodeSettings.StatsPeriod,
_settings.ExternalHttpEndPoint,
vNodeSettings.StatsStorage);
_mainBus.Subscribe(monitoringQueue.WidenFrom<SystemMessage.SystemInit, Message>());
_mainBus.Subscribe(monitoringQueue.WidenFrom<SystemMessage.StateChangeMessage, Message>());
_mainBus.Subscribe(monitoringQueue.WidenFrom<SystemMessage.BecomeShuttingDown, Message>());
_mainBus.Subscribe(monitoringQueue.WidenFrom<SystemMessage.BecomeShutdown, Message>());
_mainBus.Subscribe(monitoringQueue.WidenFrom<ClientMessage.WriteEventsCompleted, Message>());
monitoringInnerBus.Subscribe<SystemMessage.SystemInit>(monitoring);
monitoringInnerBus.Subscribe<SystemMessage.StateChangeMessage>(monitoring);
monitoringInnerBus.Subscribe<SystemMessage.BecomeShuttingDown>(monitoring);
monitoringInnerBus.Subscribe<SystemMessage.BecomeShutdown>(monitoring);
monitoringInnerBus.Subscribe<ClientMessage.WriteEventsCompleted>(monitoring);
monitoringInnerBus.Subscribe<MonitoringMessage.GetFreshStats>(monitoring);
var truncPos = db.Config.TruncateCheckpoint.Read();
if (truncPos != -1)
{
Log.Info("Truncate checkpoint is present. Truncate: {0} (0x{0:X}), Writer: {1} (0x{1:X}), Chaser: {2} (0x{2:X}), Epoch: {3} (0x{3:X})",
truncPos, db.Config.WriterCheckpoint.Read(), db.Config.ChaserCheckpoint.Read(), db.Config.EpochCheckpoint.Read());
var truncator = new TFChunkDbTruncator(db.Config);
truncator.TruncateDb(truncPos);
}
db.Open(dbVerifyHashes);
// STORAGE SUBSYSTEM
var indexPath = Path.Combine(db.Config.Path, "index");
var readerPool = new ObjectPool<ITransactionFileReader>(
"ReadIndex readers pool", ESConsts.PTableInitialReaderCount, ESConsts.PTableMaxReaderCount,
() => new TFChunkReader(db, db.Config.WriterCheckpoint));
var tableIndex = new TableIndex(indexPath,
() => new HashListMemTable(maxSize: memTableEntryCount * 2),
() => new TFReaderLease(readerPool),
maxSizeForMemory: memTableEntryCount,
maxTablesPerLevel: 2,
inMem: db.Config.InMemDb);
var hasher = new XXHashUnsafe();
var readIndex = new ReadIndex(_mainQueue,
readerPool,
tableIndex,
hasher,
ESConsts.StreamInfoCacheCapacity,
Application.IsDefined(Application.AdditionalCommitChecks),
Application.IsDefined(Application.InfiniteMetastreams) ? int.MaxValue : 1);
var writer = new TFChunkWriter(db);
var epochManager = new EpochManager(ESConsts.CachedEpochCount,
db.Config.EpochCheckpoint,
writer,
initialReaderCount: 1,
maxReaderCount: 5,
readerFactory: () => new TFChunkReader(db, db.Config.WriterCheckpoint));
epochManager.Init();
var storageWriter = new StorageWriterService(_mainQueue, _mainBus, _settings.MinFlushDelay,
db, writer, readIndex.IndexWriter, epochManager); // subscribes internally
monitoringRequestBus.Subscribe<MonitoringMessage.InternalStatsRequest>(storageWriter);
var storageReader = new StorageReaderService(_mainQueue, _mainBus, readIndex, ESConsts.StorageReaderThreadCount, db.Config.WriterCheckpoint);
_mainBus.Subscribe<SystemMessage.SystemInit>(storageReader);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(storageReader);
_mainBus.Subscribe<SystemMessage.BecomeShutdown>(storageReader);
monitoringRequestBus.Subscribe<MonitoringMessage.InternalStatsRequest>(storageReader);
var chaser = new TFChunkChaser(db, db.Config.WriterCheckpoint, db.Config.ChaserCheckpoint);
var storageChaser = new StorageChaser(_mainQueue, db.Config.WriterCheckpoint, chaser, readIndex.IndexCommitter, epochManager);
_mainBus.Subscribe<SystemMessage.SystemInit>(storageChaser);
_mainBus.Subscribe<SystemMessage.SystemStart>(storageChaser);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(storageChaser);
var storageScavenger = new StorageScavenger(db,
tableIndex,
hasher,
readIndex,
Application.IsDefined(Application.AlwaysKeepScavenged),
mergeChunks: false /*!Application.IsDefined(Application.DisableMergeChunks)*/);
// ReSharper disable RedundantTypeArgumentsOfMethod
_mainBus.Subscribe<ClientMessage.ScavengeDatabase>(storageScavenger);
// ReSharper restore RedundantTypeArgumentsOfMethod
// MISC WORKERS
_workerBuses = Enumerable.Range(0, vNodeSettings.WorkerThreads).Select(queueNum =>
new InMemoryBus(string.Format("Worker #{0} Bus", queueNum + 1),
watchSlowMsg: true,
slowMsgThreshold: TimeSpan.FromMilliseconds(200))).ToArray();
_workersHandler = new MultiQueuedHandler(
vNodeSettings.WorkerThreads,
queueNum => new QueuedHandlerThreadPool(_workerBuses[queueNum],
string.Format("Worker #{0}", queueNum + 1),
groupName: "Workers",
watchSlowMsg: true,
slowMsgThreshold: TimeSpan.FromMilliseconds(200)));
// AUTHENTICATION INFRASTRUCTURE
var passwordHashAlgorithm = new Rfc2898PasswordHashAlgorithm();
var dispatcher = new IODispatcher(_mainQueue, new PublishEnvelope(_workersHandler, crossThread: true));
var internalAuthenticationProvider = new InternalAuthenticationProvider(dispatcher, passwordHashAlgorithm, ESConsts.CachedPrincipalCount);
var passwordChangeNotificationReader = new PasswordChangeNotificationReader(_mainQueue, dispatcher);
_mainBus.Subscribe<SystemMessage.SystemStart>(passwordChangeNotificationReader);
_mainBus.Subscribe<SystemMessage.BecomeShutdown>(passwordChangeNotificationReader);
_mainBus.Subscribe(internalAuthenticationProvider);
SubscribeWorkers(bus =>
{
bus.Subscribe(dispatcher.ForwardReader);
bus.Subscribe(dispatcher.BackwardReader);
bus.Subscribe(dispatcher.Writer);
bus.Subscribe(dispatcher.StreamDeleter);
bus.Subscribe(dispatcher);
});
// TCP
{
var tcpService = new TcpService(_mainQueue, _settings.ExternalTcpEndPoint, _workersHandler,
TcpServiceType.External, TcpSecurityType.Normal, new ClientTcpDispatcher(),
ESConsts.ExternalHeartbeatInterval, ESConsts.ExternalHeartbeatTimeout,
internalAuthenticationProvider, null);
_mainBus.Subscribe<SystemMessage.SystemInit>(tcpService);
_mainBus.Subscribe<SystemMessage.SystemStart>(tcpService);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(tcpService);
}
// SECURE TCP
if (vNodeSettings.ExternalSecureTcpEndPoint != null)
{
var secureTcpService = new TcpService(_mainQueue, _settings.ExternalSecureTcpEndPoint, _workersHandler,
TcpServiceType.External, TcpSecurityType.Secure, new ClientTcpDispatcher(),
ESConsts.ExternalHeartbeatInterval, ESConsts.ExternalHeartbeatTimeout,
internalAuthenticationProvider, _settings.Certificate);
_mainBus.Subscribe<SystemMessage.SystemInit>(secureTcpService);
_mainBus.Subscribe<SystemMessage.SystemStart>(secureTcpService);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(secureTcpService);
}
SubscribeWorkers(bus =>
{
var tcpSendService = new TcpSendService();
// ReSharper disable RedundantTypeArgumentsOfMethod
bus.Subscribe<TcpMessage.TcpSend>(tcpSendService);
// ReSharper restore RedundantTypeArgumentsOfMethod
});
// HTTP
var httpAuthenticationProviders = new List<HttpAuthenticationProvider>
{
new BasicHttpAuthenticationProvider(internalAuthenticationProvider),
};
if (_settings.EnableTrustedAuth)
httpAuthenticationProviders.Add(new TrustedHttpAuthenticationProvider());
httpAuthenticationProviders.Add(new AnonymousHttpAuthenticationProvider());
var httpPipe = new HttpMessagePipe();
var httpSendService = new HttpSendService(httpPipe, forwardRequests: false);
_mainBus.Subscribe<SystemMessage.StateChangeMessage>(httpSendService);
_mainBus.Subscribe(new WideningHandler<HttpMessage.SendOverHttp, Message>(_workersHandler));
SubscribeWorkers(bus =>
{
bus.Subscribe<HttpMessage.HttpSend>(httpSendService);
bus.Subscribe<HttpMessage.HttpSendPart>(httpSendService);
bus.Subscribe<HttpMessage.HttpBeginSend>(httpSendService);
bus.Subscribe<HttpMessage.HttpEndSend>(httpSendService);
bus.Subscribe<HttpMessage.SendOverHttp>(httpSendService);
});
_httpService = new HttpService(ServiceAccessibility.Public, _mainQueue, new TrieUriRouter(),
_workersHandler, vNodeSettings.HttpPrefixes);
_httpService.SetupController(new AdminController(_mainQueue));
_httpService.SetupController(new PingController());
_httpService.SetupController(new StatController(monitoringQueue, _workersHandler));
_httpService.SetupController(new AtomController(httpSendService, _mainQueue, _workersHandler));
_httpService.SetupController(new GuidController(_mainQueue));
_httpService.SetupController(new UsersController(httpSendService, _mainQueue, _workersHandler));
_mainBus.Subscribe<SystemMessage.SystemInit>(_httpService);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(_httpService);
_mainBus.Subscribe<HttpMessage.PurgeTimedOutRequests>(_httpService);
SubscribeWorkers(bus =>
{
HttpService.CreateAndSubscribePipeline(bus, httpAuthenticationProviders.ToArray());
});
// REQUEST MANAGEMENT
var requestManagement = new RequestManagementService(_mainQueue, 1, 1, vNodeSettings.PrepareTimeout, vNodeSettings.CommitTimeout);
_mainBus.Subscribe<SystemMessage.SystemInit>(requestManagement);
_mainBus.Subscribe<ClientMessage.WriteEvents>(requestManagement);
_mainBus.Subscribe<ClientMessage.TransactionStart>(requestManagement);
_mainBus.Subscribe<ClientMessage.TransactionWrite>(requestManagement);
_mainBus.Subscribe<ClientMessage.TransactionCommit>(requestManagement);
_mainBus.Subscribe<ClientMessage.DeleteStream>(requestManagement);
_mainBus.Subscribe<StorageMessage.RequestCompleted>(requestManagement);
_mainBus.Subscribe<StorageMessage.CheckStreamAccessCompleted>(requestManagement);
_mainBus.Subscribe<StorageMessage.AlreadyCommitted>(requestManagement);
_mainBus.Subscribe<StorageMessage.CommitAck>(requestManagement);
_mainBus.Subscribe<StorageMessage.PrepareAck>(requestManagement);
_mainBus.Subscribe<StorageMessage.WrongExpectedVersion>(requestManagement);
_mainBus.Subscribe<StorageMessage.InvalidTransaction>(requestManagement);
_mainBus.Subscribe<StorageMessage.StreamDeleted>(requestManagement);
_mainBus.Subscribe<StorageMessage.RequestManagerTimerTick>(requestManagement);
// SUBSCRIPTIONS
var subscrBus = new InMemoryBus("SubscriptionsBus", true, TimeSpan.FromMilliseconds(50));
var subscrQueue = new QueuedHandlerThreadPool(subscrBus, "Subscriptions", false);
_mainBus.Subscribe(subscrQueue.WidenFrom<SystemMessage.SystemStart, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<SystemMessage.BecomeShuttingDown, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<TcpMessage.ConnectionClosed, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<ClientMessage.SubscribeToStream, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<ClientMessage.UnsubscribeFromStream, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<SubscriptionMessage.PollStream, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<SubscriptionMessage.CheckPollTimeout, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<StorageMessage.EventCommited, Message>());
var subscription = new SubscriptionsService(_mainQueue, subscrQueue, readIndex);
subscrBus.Subscribe<SystemMessage.SystemStart>(subscription);
subscrBus.Subscribe<SystemMessage.BecomeShuttingDown>(subscription);
subscrBus.Subscribe<TcpMessage.ConnectionClosed>(subscription);
subscrBus.Subscribe<ClientMessage.SubscribeToStream>(subscription);
subscrBus.Subscribe<ClientMessage.UnsubscribeFromStream>(subscription);
subscrBus.Subscribe<SubscriptionMessage.PollStream>(subscription);
subscrBus.Subscribe<SubscriptionMessage.CheckPollTimeout>(subscription);
subscrBus.Subscribe<StorageMessage.EventCommited>(subscription);
// USER MANAGEMENT
var ioDispatcher = new IODispatcher(_mainQueue, new PublishEnvelope(_mainQueue));
_mainBus.Subscribe(ioDispatcher.BackwardReader);
_mainBus.Subscribe(ioDispatcher.ForwardReader);
_mainBus.Subscribe(ioDispatcher.Writer);
_mainBus.Subscribe(ioDispatcher.StreamDeleter);
_mainBus.Subscribe(ioDispatcher);
var userManagement = new UserManagementService(
_mainQueue, ioDispatcher, passwordHashAlgorithm, vNodeSettings.SkipInitializeStandardUsersCheck);
_mainBus.Subscribe<UserManagementMessage.Create>(userManagement);
_mainBus.Subscribe<UserManagementMessage.Update>(userManagement);
_mainBus.Subscribe<UserManagementMessage.Enable>(userManagement);
_mainBus.Subscribe<UserManagementMessage.Disable>(userManagement);
_mainBus.Subscribe<UserManagementMessage.Delete>(userManagement);
_mainBus.Subscribe<UserManagementMessage.ResetPassword>(userManagement);
_mainBus.Subscribe<UserManagementMessage.ChangePassword>(userManagement);
_mainBus.Subscribe<UserManagementMessage.Get>(userManagement);
_mainBus.Subscribe<UserManagementMessage.GetAll>(userManagement);
_mainBus.Subscribe<SystemMessage.BecomeMaster>(userManagement);
// TIMER
_timeProvider = new RealTimeProvider();
_timerService = new TimerService(new ThreadBasedScheduler(_timeProvider));
_mainBus.Subscribe<SystemMessage.BecomeShutdown>(_timerService);
_mainBus.Subscribe<TimerMessage.Schedule>(_timerService);
_workersHandler.Start();
_mainQueue.Start();
monitoringQueue.Start();
subscrQueue.Start();
if (subsystems != null)
foreach (var subsystem in subsystems)
subsystem.Register(db, _mainQueue, _mainBus, _timerService, _timeProvider, httpSendService, new[]{_httpService}, _workersHandler);
}
public ClusterVNode(TFChunkDb db,
ClusterVNodeSettings vNodeSettings,
IGossipSeedSource gossipSeedSource,
bool dbVerifyHashes,
int memTableEntryCount,
params ISubsystem[] subsystems)
{
Ensure.NotNull(db, "db");
Ensure.NotNull(vNodeSettings, "vNodeSettings");
Ensure.NotNull(gossipSeedSource, "gossipSeedSource");
_nodeInfo = vNodeSettings.NodeInfo;
_mainBus = new InMemoryBus("MainBus");
var forwardingProxy = new MessageForwardingProxy();
// MISC WORKERS
_workerBuses = Enumerable.Range(0, vNodeSettings.WorkerThreads).Select(queueNum =>
new InMemoryBus(string.Format("Worker #{0} Bus", queueNum + 1),
watchSlowMsg: true,
slowMsgThreshold: TimeSpan.FromMilliseconds(200))).ToArray();
_workersHandler = new MultiQueuedHandler(
vNodeSettings.WorkerThreads,
queueNum => new QueuedHandlerThreadPool(_workerBuses[queueNum],
string.Format("Worker #{0}", queueNum + 1),
groupName: "Workers",
watchSlowMsg: true,
slowMsgThreshold: TimeSpan.FromMilliseconds(200)));
_controller = new ClusterVNodeController(_mainBus, _nodeInfo, db, vNodeSettings, this, forwardingProxy);
_mainQueue = new QueuedHandler(_controller, "MainQueue");
_controller.SetMainQueue(_mainQueue);
_subsystems = subsystems;
// MONITORING
var monitoringInnerBus = new InMemoryBus("MonitoringInnerBus", watchSlowMsg: false);
var monitoringRequestBus = new InMemoryBus("MonitoringRequestBus", watchSlowMsg: false);
var monitoringQueue = new QueuedHandlerThreadPool(monitoringInnerBus, "MonitoringQueue", true, TimeSpan.FromMilliseconds(100));
var monitoring = new MonitoringService(monitoringQueue,
monitoringRequestBus,
_mainQueue,
db.Config.WriterCheckpoint,
db.Config.Path,
vNodeSettings.StatsPeriod,
_nodeInfo.ExternalHttp,
vNodeSettings.StatsStorage);
_mainBus.Subscribe(monitoringQueue.WidenFrom<SystemMessage.SystemInit, Message>());
_mainBus.Subscribe(monitoringQueue.WidenFrom<SystemMessage.StateChangeMessage, Message>());
_mainBus.Subscribe(monitoringQueue.WidenFrom<SystemMessage.BecomeShuttingDown, Message>());
_mainBus.Subscribe(monitoringQueue.WidenFrom<SystemMessage.BecomeShutdown, Message>());
_mainBus.Subscribe(monitoringQueue.WidenFrom<ClientMessage.WriteEventsCompleted, Message>());
monitoringInnerBus.Subscribe<SystemMessage.SystemInit>(monitoring);
monitoringInnerBus.Subscribe<SystemMessage.StateChangeMessage>(monitoring);
monitoringInnerBus.Subscribe<SystemMessage.BecomeShuttingDown>(monitoring);
monitoringInnerBus.Subscribe<SystemMessage.BecomeShutdown>(monitoring);
monitoringInnerBus.Subscribe<ClientMessage.WriteEventsCompleted>(monitoring);
monitoringInnerBus.Subscribe<MonitoringMessage.GetFreshStats>(monitoring);
var truncPos = db.Config.TruncateCheckpoint.Read();
if (truncPos != -1)
{
Log.Info("Truncate checkpoint is present. Truncate: {0} (0x{0:X}), Writer: {1} (0x{1:X}), Chaser: {2} (0x{2:X}), Epoch: {3} (0x{3:X})",
truncPos, db.Config.WriterCheckpoint.Read(), db.Config.ChaserCheckpoint.Read(), db.Config.EpochCheckpoint.Read());
var truncator = new TFChunkDbTruncator(db.Config);
truncator.TruncateDb(truncPos);
}
// STORAGE SUBSYSTEM
db.Open(dbVerifyHashes);
var indexPath = Path.Combine(db.Config.Path, "index");
var readerPool = new ObjectPool<ITransactionFileReader>(
"ReadIndex readers pool", ESConsts.PTableInitialReaderCount, ESConsts.PTableMaxReaderCount,
() => new TFChunkReader(db, db.Config.WriterCheckpoint));
var tableIndex = new TableIndex(indexPath,
() => new HashListMemTable(maxSize: memTableEntryCount * 2),
() => new TFReaderLease(readerPool),
maxSizeForMemory: memTableEntryCount,
maxTablesPerLevel: 2,
inMem: db.Config.InMemDb);
var hash = new XXHashUnsafe();
var readIndex = new ReadIndex(_mainQueue,
readerPool,
tableIndex,
hash,
ESConsts.StreamInfoCacheCapacity,
Application.IsDefined(Application.AdditionalCommitChecks),
Application.IsDefined(Application.InfiniteMetastreams) ? int.MaxValue : 1);
var writer = new TFChunkWriter(db);
var epochManager = new EpochManager(ESConsts.CachedEpochCount,
db.Config.EpochCheckpoint,
writer,
initialReaderCount: 1,
maxReaderCount: 5,
readerFactory: () => new TFChunkReader(db, db.Config.WriterCheckpoint));
epochManager.Init();
var storageWriter = new ClusterStorageWriterService(_mainQueue, _mainBus, vNodeSettings.MinFlushDelay,
db, writer, readIndex.IndexWriter, epochManager,
() => readIndex.LastCommitPosition); // subscribes internally
monitoringRequestBus.Subscribe<MonitoringMessage.InternalStatsRequest>(storageWriter);
var storageReader = new StorageReaderService(_mainQueue, _mainBus, readIndex, ESConsts.StorageReaderThreadCount, db.Config.WriterCheckpoint);
_mainBus.Subscribe<SystemMessage.SystemInit>(storageReader);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(storageReader);
_mainBus.Subscribe<SystemMessage.BecomeShutdown>(storageReader);
monitoringRequestBus.Subscribe<MonitoringMessage.InternalStatsRequest>(storageReader);
var chaser = new TFChunkChaser(db, db.Config.WriterCheckpoint, db.Config.ChaserCheckpoint);
var storageChaser = new StorageChaser(_mainQueue, db.Config.WriterCheckpoint, chaser, readIndex.IndexCommitter, epochManager);
_mainBus.Subscribe<SystemMessage.SystemInit>(storageChaser);
_mainBus.Subscribe<SystemMessage.SystemStart>(storageChaser);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(storageChaser);
var storageScavenger = new StorageScavenger(db, tableIndex, hash, readIndex,
Application.IsDefined(Application.AlwaysKeepScavenged),
mergeChunks: !vNodeSettings.DisableScavengeMerging);
// ReSharper disable RedundantTypeArgumentsOfMethod
_mainBus.Subscribe<ClientMessage.ScavengeDatabase>(storageScavenger);
// ReSharper restore RedundantTypeArgumentsOfMethod
// AUTHENTICATION INFRASTRUCTURE - delegate to plugins
var authenticationProvider = vNodeSettings.AuthenticationProviderFactory.BuildAuthenticationProvider(_mainQueue, _mainBus, _workersHandler, _workerBuses);
Ensure.NotNull(authenticationProvider, "authenticationProvider");
{
// EXTERNAL TCP
var extTcpService = new TcpService(_mainQueue, _nodeInfo.ExternalTcp, _workersHandler,
TcpServiceType.External, TcpSecurityType.Normal, new ClientTcpDispatcher(),
ESConsts.ExternalHeartbeatInterval, ESConsts.ExternalHeartbeatTimeout,
authenticationProvider, null);
_mainBus.Subscribe<SystemMessage.SystemInit>(extTcpService);
_mainBus.Subscribe<SystemMessage.SystemStart>(extTcpService);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(extTcpService);
// EXTERNAL SECURE TCP
if (_nodeInfo.ExternalSecureTcp != null)
{
var extSecTcpService = new TcpService(_mainQueue, _nodeInfo.ExternalSecureTcp, _workersHandler,
TcpServiceType.External, TcpSecurityType.Secure, new ClientTcpDispatcher(),
ESConsts.ExternalHeartbeatInterval, ESConsts.ExternalHeartbeatTimeout,
authenticationProvider, vNodeSettings.Certificate);
_mainBus.Subscribe<SystemMessage.SystemInit>(extSecTcpService);
_mainBus.Subscribe<SystemMessage.SystemStart>(extSecTcpService);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(extSecTcpService);
}
// INTERNAL TCP
var intTcpService = new TcpService(_mainQueue, _nodeInfo.InternalTcp, _workersHandler,
TcpServiceType.Internal, TcpSecurityType.Normal,
new InternalTcpDispatcher(),
ESConsts.InternalHeartbeatInterval, ESConsts.InternalHeartbeatTimeout,
authenticationProvider, null);
_mainBus.Subscribe<SystemMessage.SystemInit>(intTcpService);
_mainBus.Subscribe<SystemMessage.SystemStart>(intTcpService);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(intTcpService);
// INTERNAL SECURE TCP
if (_nodeInfo.InternalSecureTcp != null)
{
var intSecTcpService = new TcpService(_mainQueue, _nodeInfo.InternalSecureTcp, _workersHandler,
TcpServiceType.Internal, TcpSecurityType.Secure,
new InternalTcpDispatcher(),
ESConsts.InternalHeartbeatInterval, ESConsts.InternalHeartbeatTimeout,
authenticationProvider, vNodeSettings.Certificate);
_mainBus.Subscribe<SystemMessage.SystemInit>(intSecTcpService);
_mainBus.Subscribe<SystemMessage.SystemStart>(intSecTcpService);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(intSecTcpService);
}
}
SubscribeWorkers(bus =>
{
var tcpSendService = new TcpSendService();
// ReSharper disable RedundantTypeArgumentsOfMethod
bus.Subscribe<TcpMessage.TcpSend>(tcpSendService);
// ReSharper restore RedundantTypeArgumentsOfMethod
});
var httpAuthenticationProviders = new List<HttpAuthenticationProvider>
{
new BasicHttpAuthenticationProvider(authenticationProvider),
};
if (vNodeSettings.EnableTrustedAuth)
httpAuthenticationProviders.Add(new TrustedHttpAuthenticationProvider());
httpAuthenticationProviders.Add(new AnonymousHttpAuthenticationProvider());
var httpPipe = new HttpMessagePipe();
var httpSendService = new HttpSendService(httpPipe, forwardRequests: true);
_mainBus.Subscribe<SystemMessage.StateChangeMessage>(httpSendService);
_mainBus.Subscribe(new WideningHandler<HttpMessage.SendOverHttp, Message>(_workersHandler));
SubscribeWorkers(bus =>
{
bus.Subscribe<HttpMessage.HttpSend>(httpSendService);
bus.Subscribe<HttpMessage.HttpSendPart>(httpSendService);
bus.Subscribe<HttpMessage.HttpBeginSend>(httpSendService);
bus.Subscribe<HttpMessage.HttpEndSend>(httpSendService);
bus.Subscribe<HttpMessage.SendOverHttp>(httpSendService);
});
var adminController = new AdminController(_mainQueue);
var pingController = new PingController();
var statController = new StatController(monitoringQueue, _workersHandler);
var atomController = new AtomController(httpSendService, _mainQueue, _workersHandler);
var gossipController = new GossipController(_mainQueue, _workersHandler);
var electController = new ElectController(_mainQueue);
// HTTP SENDERS
gossipController.SubscribeSenders(httpPipe);
electController.SubscribeSenders(httpPipe);
// EXTERNAL HTTP
_externalHttpService = new HttpService(ServiceAccessibility.Public, _mainQueue, new TrieUriRouter(),
_workersHandler, vNodeSettings.HttpPrefixes);
_externalHttpService.SetupController(adminController);
_externalHttpService.SetupController(pingController);
_externalHttpService.SetupController(statController);
_externalHttpService.SetupController(atomController);
_externalHttpService.SetupController(gossipController);
_mainBus.Subscribe<SystemMessage.SystemInit>(_externalHttpService);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(_externalHttpService);
_mainBus.Subscribe<HttpMessage.PurgeTimedOutRequests>(_externalHttpService);
// INTERNAL HTTP
_internalHttpService = new HttpService(ServiceAccessibility.Private, _mainQueue, new TrieUriRouter(),
_workersHandler, _nodeInfo.InternalHttp.ToHttpUrl());
_internalHttpService.SetupController(adminController);
_internalHttpService.SetupController(pingController);
_internalHttpService.SetupController(statController);
_internalHttpService.SetupController(atomController);
_internalHttpService.SetupController(gossipController);
_internalHttpService.SetupController(electController);
// Authentication plugin HTTP
vNodeSettings.AuthenticationProviderFactory.RegisterHttpControllers(_externalHttpService, _internalHttpService, httpSendService, _mainQueue, _workersHandler);
_mainBus.Subscribe<SystemMessage.SystemInit>(_internalHttpService);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(_internalHttpService);
_mainBus.Subscribe<HttpMessage.PurgeTimedOutRequests>(_internalHttpService);
SubscribeWorkers(bus =>
{
HttpService.CreateAndSubscribePipeline(bus, httpAuthenticationProviders.ToArray());
});
// REQUEST FORWARDING
var forwardingService = new RequestForwardingService(_mainQueue, forwardingProxy, TimeSpan.FromSeconds(1));
_mainBus.Subscribe<SystemMessage.SystemStart>(forwardingService);
_mainBus.Subscribe<SystemMessage.RequestForwardingTimerTick>(forwardingService);
_mainBus.Subscribe<ClientMessage.NotHandled>(forwardingService);
_mainBus.Subscribe<ClientMessage.WriteEventsCompleted>(forwardingService);
_mainBus.Subscribe<ClientMessage.TransactionStartCompleted>(forwardingService);
_mainBus.Subscribe<ClientMessage.TransactionWriteCompleted>(forwardingService);
_mainBus.Subscribe<ClientMessage.TransactionCommitCompleted>(forwardingService);
_mainBus.Subscribe<ClientMessage.DeleteStreamCompleted>(forwardingService);
// REQUEST MANAGEMENT
var requestManagement = new RequestManagementService(_mainQueue,
vNodeSettings.PrepareAckCount,
vNodeSettings.CommitAckCount,
vNodeSettings.PrepareTimeout,
vNodeSettings.CommitTimeout);
_mainBus.Subscribe<SystemMessage.SystemInit>(requestManagement);
_mainBus.Subscribe<ClientMessage.WriteEvents>(requestManagement);
_mainBus.Subscribe<ClientMessage.TransactionStart>(requestManagement);
_mainBus.Subscribe<ClientMessage.TransactionWrite>(requestManagement);
_mainBus.Subscribe<ClientMessage.TransactionCommit>(requestManagement);
_mainBus.Subscribe<ClientMessage.DeleteStream>(requestManagement);
_mainBus.Subscribe<StorageMessage.RequestCompleted>(requestManagement);
_mainBus.Subscribe<StorageMessage.CheckStreamAccessCompleted>(requestManagement);
_mainBus.Subscribe<StorageMessage.AlreadyCommitted>(requestManagement);
_mainBus.Subscribe<StorageMessage.CommitAck>(requestManagement);
_mainBus.Subscribe<StorageMessage.PrepareAck>(requestManagement);
_mainBus.Subscribe<StorageMessage.WrongExpectedVersion>(requestManagement);
_mainBus.Subscribe<StorageMessage.InvalidTransaction>(requestManagement);
_mainBus.Subscribe<StorageMessage.StreamDeleted>(requestManagement);
_mainBus.Subscribe<StorageMessage.RequestManagerTimerTick>(requestManagement);
// SUBSCRIPTIONS
var subscrBus = new InMemoryBus("SubscriptionsBus", true, TimeSpan.FromMilliseconds(50));
var subscrQueue = new QueuedHandlerThreadPool(subscrBus, "Subscriptions", false);
_mainBus.Subscribe(subscrQueue.WidenFrom<SystemMessage.SystemStart, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<SystemMessage.BecomeShuttingDown, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<TcpMessage.ConnectionClosed, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<ClientMessage.SubscribeToStream, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<ClientMessage.UnsubscribeFromStream, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<SubscriptionMessage.PollStream, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<SubscriptionMessage.CheckPollTimeout, Message>());
_mainBus.Subscribe(subscrQueue.WidenFrom<StorageMessage.EventCommited, Message>());
var subscription = new SubscriptionsService(_mainQueue, subscrQueue, readIndex);
subscrBus.Subscribe<SystemMessage.SystemStart>(subscription);
subscrBus.Subscribe<SystemMessage.BecomeShuttingDown>(subscription);
subscrBus.Subscribe<TcpMessage.ConnectionClosed>(subscription);
subscrBus.Subscribe<ClientMessage.SubscribeToStream>(subscription);
subscrBus.Subscribe<ClientMessage.UnsubscribeFromStream>(subscription);
subscrBus.Subscribe<SubscriptionMessage.PollStream>(subscription);
subscrBus.Subscribe<SubscriptionMessage.CheckPollTimeout>(subscription);
subscrBus.Subscribe<StorageMessage.EventCommited>(subscription);
// TIMER
_timeProvider = new RealTimeProvider();
_timerService = new TimerService(new ThreadBasedScheduler(_timeProvider));
_mainBus.Subscribe<SystemMessage.BecomeShutdown>(_timerService);
_mainBus.Subscribe<TimerMessage.Schedule>(_timerService);
// MASTER REPLICATION
var masterReplicationService = new MasterReplicationService(_mainQueue, _nodeInfo.InstanceId, db, _workersHandler,
epochManager, vNodeSettings.ClusterNodeCount);
_mainBus.Subscribe<SystemMessage.SystemStart>(masterReplicationService);
_mainBus.Subscribe<SystemMessage.StateChangeMessage>(masterReplicationService);
_mainBus.Subscribe<ReplicationMessage.ReplicaSubscriptionRequest>(masterReplicationService);
_mainBus.Subscribe<ReplicationMessage.ReplicaLogPositionAck>(masterReplicationService);
// REPLICA REPLICATION
var replicaService = new ReplicaService(_mainQueue, db, epochManager, _workersHandler, authenticationProvider,
_nodeInfo, vNodeSettings.UseSsl, vNodeSettings.SslTargetHost, vNodeSettings.SslValidateServer);
_mainBus.Subscribe<SystemMessage.StateChangeMessage>(replicaService);
_mainBus.Subscribe<ReplicationMessage.ReconnectToMaster>(replicaService);
_mainBus.Subscribe<ReplicationMessage.SubscribeToMaster>(replicaService);
_mainBus.Subscribe<ReplicationMessage.AckLogPosition>(replicaService);
_mainBus.Subscribe<StorageMessage.PrepareAck>(replicaService);
_mainBus.Subscribe<StorageMessage.CommitAck>(replicaService);
_mainBus.Subscribe<ClientMessage.TcpForwardMessage>(replicaService);
// ELECTIONS
var electionsService = new ElectionsService(_mainQueue, _nodeInfo, vNodeSettings.ClusterNodeCount,
db.Config.WriterCheckpoint, db.Config.ChaserCheckpoint,
epochManager, () => readIndex.LastCommitPosition, vNodeSettings.NodePriority);
electionsService.SubscribeMessages(_mainBus);
// GOSSIP
var gossip = new NodeGossipService(_mainQueue, gossipSeedSource, _nodeInfo, db.Config.WriterCheckpoint,
db.Config.ChaserCheckpoint, epochManager, () => readIndex.LastCommitPosition,
vNodeSettings.NodePriority);
_mainBus.Subscribe<SystemMessage.SystemInit>(gossip);
_mainBus.Subscribe<GossipMessage.RetrieveGossipSeedSources>(gossip);
_mainBus.Subscribe<GossipMessage.GotGossipSeedSources>(gossip);
_mainBus.Subscribe<GossipMessage.Gossip>(gossip);
_mainBus.Subscribe<GossipMessage.GossipReceived>(gossip);
_mainBus.Subscribe<SystemMessage.StateChangeMessage>(gossip);
_mainBus.Subscribe<GossipMessage.GossipSendFailed>(gossip);
_mainBus.Subscribe<SystemMessage.VNodeConnectionEstablished>(gossip);
_mainBus.Subscribe<SystemMessage.VNodeConnectionLost>(gossip);
_workersHandler.Start();
_mainQueue.Start();
monitoringQueue.Start();
subscrQueue.Start();
if (subsystems != null)
{
foreach (var subsystem in subsystems)
{
subsystem.Register(db, _mainQueue, _mainBus, _timerService, _timeProvider,
httpSendService, new[] { _internalHttpService, _externalHttpService }, _workersHandler);
}
}
}
public SingleVNode(TFChunkDb db,
SingleVNodeSettings vNodeSettings,
bool dbVerifyHashes,
int memTableEntryCount = ESConsts.MemTableEntryCount)
{
Ensure.NotNull(db, "db");
Ensure.NotNull(vNodeSettings, "vNodeSettings");
db.OpenVerifyAndClean(dbVerifyHashes);
_tcpEndPoint = vNodeSettings.ExternalTcpEndPoint;
_httpEndPoint = vNodeSettings.ExternalHttpEndPoint;
_mainBus = new InMemoryBus("MainBus");
_controller = new SingleVNodeController(Bus, _httpEndPoint);
_mainQueue = new QueuedHandler(_controller, "MainQueue");
_controller.SetMainQueue(MainQueue);
//MONITORING
var monitoringInnerBus = new InMemoryBus("MonitoringInnerBus", watchSlowMsg: false);
var monitoringRequestBus = new InMemoryBus("MonitoringRequestBus", watchSlowMsg: false);
var monitoringQueue = new QueuedHandler(monitoringInnerBus, "MonitoringQueue", true, TimeSpan.FromMilliseconds(100));
var monitoring = new MonitoringService(monitoringQueue,
monitoringRequestBus,
MainQueue,
db.Config.WriterCheckpoint,
db.Config.Path,
vNodeSettings.StatsPeriod,
_httpEndPoint,
vNodeSettings.StatsStorage);
Bus.Subscribe(monitoringQueue.WidenFrom<SystemMessage.SystemInit, Message>());
Bus.Subscribe(monitoringQueue.WidenFrom<SystemMessage.StateChangeMessage, Message>());
Bus.Subscribe(monitoringQueue.WidenFrom<SystemMessage.BecomeShuttingDown, Message>());
Bus.Subscribe(monitoringQueue.WidenFrom<ClientMessage.CreateStreamCompleted, Message>());
monitoringInnerBus.Subscribe<SystemMessage.SystemInit>(monitoring);
monitoringInnerBus.Subscribe<SystemMessage.StateChangeMessage>(monitoring);
monitoringInnerBus.Subscribe<SystemMessage.BecomeShuttingDown>(monitoring);
monitoringInnerBus.Subscribe<ClientMessage.CreateStreamCompleted>(monitoring);
monitoringInnerBus.Subscribe<MonitoringMessage.GetFreshStats>(monitoring);
//STORAGE SUBSYSTEM
var indexPath = Path.Combine(db.Config.Path, "index");
var tableIndex = new TableIndex(indexPath,
() => new HashListMemTable(maxSize: memTableEntryCount * 2),
maxSizeForMemory: memTableEntryCount,
maxTablesPerLevel: 2);
var readIndex = new ReadIndex(_mainQueue,
ESConsts.ReadIndexReaderCount,
() => new TFChunkSequentialReader(db, db.Config.WriterCheckpoint, 0),
() => new TFChunkReader(db, db.Config.WriterCheckpoint),
tableIndex,
new XXHashUnsafe(),
new LRUCache<string, StreamCacheInfo>(ESConsts.MetadataCacheCapacity));
var writer = new TFChunkWriter(db);
new StorageWriterService(_mainQueue, _mainBus, writer, readIndex); // subscribes internally
var storageReader = new StorageReaderService(_mainQueue, _mainBus, readIndex, ESConsts.StorageReaderHandlerCount, db.Config.WriterCheckpoint);
_mainBus.Subscribe<SystemMessage.SystemInit>(storageReader);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(storageReader);
_mainBus.Subscribe<SystemMessage.BecomeShutdown>(storageReader);
monitoringRequestBus.Subscribe<MonitoringMessage.InternalStatsRequest>(storageReader);
var chaser = new TFChunkChaser(db, db.Config.WriterCheckpoint, db.Config.ChaserCheckpoint);
var storageChaser = new StorageChaser(_mainQueue, db.Config.WriterCheckpoint, chaser, readIndex, _tcpEndPoint);
_mainBus.Subscribe<SystemMessage.SystemInit>(storageChaser);
_mainBus.Subscribe<SystemMessage.SystemStart>(storageChaser);
_mainBus.Subscribe<SystemMessage.BecomeShuttingDown>(storageChaser);
var storageScavenger = new StorageScavenger(db, readIndex);
_mainBus.Subscribe<SystemMessage.ScavengeDatabase>(storageScavenger);
// NETWORK SEND
_networkSendService = new NetworkSendService(tcpQueueCount: vNodeSettings.TcpSendingThreads, httpQueueCount: vNodeSettings.HttpSendingThreads);
//TCP
var tcpService = new TcpService(MainQueue, _tcpEndPoint, _networkSendService);
Bus.Subscribe<SystemMessage.SystemInit>(tcpService);
Bus.Subscribe<SystemMessage.SystemStart>(tcpService);
Bus.Subscribe<SystemMessage.BecomeShuttingDown>(tcpService);
//HTTP
_httpService = new HttpService(ServiceAccessibility.Private, MainQueue, vNodeSettings.HttpReceivingThreads, vNodeSettings.HttpPrefixes);
Bus.Subscribe<SystemMessage.SystemInit>(HttpService);
Bus.Subscribe<SystemMessage.BecomeShuttingDown>(HttpService);
Bus.Subscribe<HttpMessage.SendOverHttp>(HttpService);
Bus.Subscribe<HttpMessage.PurgeTimedOutRequests>(HttpService);
HttpService.SetupController(new AdminController(MainQueue));
HttpService.SetupController(new PingController());
HttpService.SetupController(new StatController(monitoringQueue, _networkSendService));
HttpService.SetupController(new ReadEventDataController(MainQueue, _networkSendService));
HttpService.SetupController(new AtomController(MainQueue, _networkSendService));
HttpService.SetupController(new WebSiteController(MainQueue));
//REQUEST MANAGEMENT
var requestManagement = new RequestManagementService(MainQueue, 1, 1);
Bus.Subscribe<StorageMessage.CreateStreamRequestCreated>(requestManagement);
Bus.Subscribe<StorageMessage.WriteRequestCreated>(requestManagement);
Bus.Subscribe<StorageMessage.TransactionStartRequestCreated>(requestManagement);
Bus.Subscribe<StorageMessage.TransactionWriteRequestCreated>(requestManagement);
Bus.Subscribe<StorageMessage.TransactionCommitRequestCreated>(requestManagement);
Bus.Subscribe<StorageMessage.DeleteStreamRequestCreated>(requestManagement);
Bus.Subscribe<StorageMessage.RequestCompleted>(requestManagement);
Bus.Subscribe<StorageMessage.AlreadyCommitted>(requestManagement);
Bus.Subscribe<StorageMessage.CommitAck>(requestManagement);
Bus.Subscribe<StorageMessage.PrepareAck>(requestManagement);
Bus.Subscribe<StorageMessage.WrongExpectedVersion>(requestManagement);
Bus.Subscribe<StorageMessage.InvalidTransaction>(requestManagement);
Bus.Subscribe<StorageMessage.StreamDeleted>(requestManagement);
Bus.Subscribe<StorageMessage.PreparePhaseTimeout>(requestManagement);
Bus.Subscribe<StorageMessage.CommitPhaseTimeout>(requestManagement);
new SubscriptionsService(_mainBus, readIndex); // subcribes internally
//TIMER
_timerService = new TimerService(new ThreadBasedScheduler(new RealTimeProvider()));
Bus.Subscribe<TimerMessage.Schedule>(TimerService);
monitoringQueue.Start();
MainQueue.Start();
}
public void try_read_returns_record_when_writerchecksum_ahead()
{
var recordToWrite = new PrepareLogRecord(logPosition: 0,
correlationId: _correlationId,
eventId: _eventId,
transactionPosition: 0,
transactionOffset: 0,
eventStreamId: "WorldEnding",
expectedVersion: 1234,
timeStamp: new DateTime(2012, 12, 21),
flags: PrepareFlags.None,
eventType: "type",
data: new byte[] { 1, 2, 3, 4, 5 },
metadata: new byte[] { 7, 17 });
using (var fs = new FileStream(GetFilePathFor("prefix.tf0"), FileMode.CreateNew, FileAccess.Write))
{
fs.SetLength(ChunkHeader.Size + ChunkFooter.Size + 10000);
var chunkHeader = new ChunkHeader(TFChunk.CurrentChunkVersion, 10000, 0, 0, false).AsByteArray();
var writer = new BinaryWriter(fs);
writer.Write(chunkHeader);
recordToWrite.WriteWithLengthPrefixAndSuffixTo(writer);
fs.Close();
}
var writerchk = new InMemoryCheckpoint(128);
var chaserchk = new InMemoryCheckpoint(Checkpoint.Chaser, 0);
var db = new TFChunkDb(new TFChunkDbConfig(PathName,
new PrefixFileNamingStrategy(PathName, "prefix.tf"),
10000,
0,
writerchk,
chaserchk,
new[] {chaserchk}));
db.OpenVerifyAndClean();
var chaser = new TFChunkChaser(db, writerchk, chaserchk);
chaser.Open();
LogRecord record;
var recordRead = chaser.TryReadNext(out record);
chaser.Close();
Assert.AreEqual(record.GetSizeWithLengthPrefixAndSuffix(), chaserchk.Read());
Assert.IsTrue(recordRead);
Assert.AreEqual(recordToWrite, record);
db.Close();
}
public void try_read_returns_record_when_writerchecksum_equal()
{
var writerchk = new InMemoryCheckpoint(0);
var chaserchk = new InMemoryCheckpoint(Checkpoint.Chaser, 0);
var db = new TFChunkDb(new TFChunkDbConfig(PathName,
new PrefixFileNamingStrategy(PathName, "prefix.tf"),
10000,
0,
writerchk,
chaserchk,
new[] {chaserchk}));
db.OpenVerifyAndClean();
var recordToWrite = new PrepareLogRecord(logPosition: 0,
correlationId: _correlationId,
eventId: _eventId,
transactionPosition: 0,
transactionOffset: 0,
eventStreamId: "WorldEnding",
expectedVersion: 1234,
timeStamp: new DateTime(2012, 12, 21),
flags: PrepareFlags.None,
eventType: "type",
data: new byte[] { 1, 2, 3, 4, 5 },
metadata: new byte[] { 7, 17 });
var writer = new TFChunkWriter(db);
writer.Open();
long pos;
Assert.IsTrue(writer.Write(recordToWrite, out pos));
writer.Close();
writerchk.Write(recordToWrite.GetSizeWithLengthPrefixAndSuffix());
var chaser = new TFChunkChaser(db, writerchk, chaserchk);
chaser.Open();
LogRecord record;
var readRecord = chaser.TryReadNext(out record);
chaser.Close();
Assert.IsTrue(readRecord);
Assert.AreEqual(record.GetSizeWithLengthPrefixAndSuffix(), chaserchk.Read());
Assert.AreEqual(recordToWrite, record);
db.Close();
}