public Heartbeat(ClusterState clusterState, ClusterMembers clusterMembers, ClusterMessaging clusterMessaging, HeartbeatOptions options, ILoggerFactory loggerFactory)
{
_clusterState = clusterState ?? throw new ArgumentNullException(nameof(clusterState));
_clusterMembers = clusterMembers ?? throw new ArgumentNullException(nameof(clusterMembers));
_clusterMessaging = clusterMessaging ?? throw new ArgumentNullException(nameof(clusterMessaging));
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
_logger = loggerFactory?.CreateLogger <Heartbeat>() ?? throw new ArgumentNullException(nameof(loggerFactory));
_period = TimeSpan.FromMilliseconds(options.PeriodMilliseconds);
_timeout = TimeSpan.FromMilliseconds(options.TimeoutMilliseconds);
// sanity checks
if (_timeout <= _period)
{
var timeout = TimeSpan.FromMilliseconds(2 * _period.TotalMilliseconds);
_logger.LogWarning("Heartbeat timeout {Timeout}ms is <= period {Period}ms, falling back to a {Value}ms timeout.",
_timeout, _period.TotalMilliseconds, timeout);
_timeout = timeout;
}
_cancellation = new CancellationTokenSource();
_heartbeating ??= LoopAsync(_cancellation.Token);
}
public Heartbeat(ClusterState clusterState, ClusterMembers clusterMembers, ClusterMessaging clusterMessaging, HeartbeatOptions options, ILoggerFactory loggerFactory)
{
_clusterState = clusterState ?? throw new ArgumentNullException(nameof(clusterState));
_clusterMembers = clusterMembers ?? throw new ArgumentNullException(nameof(clusterMembers));
_clusterMessaging = clusterMessaging ?? throw new ArgumentNullException(nameof(clusterMessaging));
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
_logger = loggerFactory?.CreateLogger <Heartbeat>() ?? throw new ArgumentNullException(nameof(loggerFactory));
_period = TimeSpan.FromMilliseconds(options.PeriodMilliseconds);
_timeout = TimeSpan.FromMilliseconds(options.TimeoutMilliseconds);
_pingTimeout = options.PingTimeoutMilliseconds;
// sanity checks
if (_timeout <= _period)
{
var timeout = TimeSpan.FromMilliseconds(2 * _period.TotalMilliseconds);
_logger.LogWarning("Heartbeat timeout {Timeout}ms is <= period {Period}ms, falling back to a {Value}ms timeout.",
_timeout, _period.TotalMilliseconds, timeout);
_timeout = timeout;
}
if (_pingTimeout >= _period.TotalMilliseconds)
{
var pingTimeout = (int)_period.TotalMilliseconds / 2;
_logger.LogWarning("Ping timeout {Timeout}ms is >= period {Period}ms, falling back to a {Value}ms timeout.",
_pingTimeout, _period.TotalMilliseconds, pingTimeout);
_pingTimeout = pingTimeout;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ClusterMessaging"/> class.
/// </summary>
/// <param name="clusterState">The cluster state.</param>
/// <param name="clusterMembers">The cluster members.</param>
public ClusterMessaging(ClusterState clusterState, ClusterMembers clusterMembers)
{
_clusterState = clusterState;
_clusterMembers = clusterMembers;
HConsole.Configure(x => x.Configure <ClusterMessaging>().SetPrefix("MSGING"));
}
public ClusterEvents(ClusterState clusterState, ClusterMessaging clusterMessaging, ClusterMembers clusterMembers)
{
_clusterState = clusterState;
_clusterMessaging = clusterMessaging;
_clusterMembers = clusterMembers;
_logger = _clusterState.LoggerFactory.CreateLogger <ClusterEvents>();
_scheduler = new DistributedEventScheduler(_clusterState.LoggerFactory);
}
public ClusterConnections(ClusterState clusterState, ClusterClusterEvents clusterClusterEvents, ClusterEvents clusterEvents, ClusterMembers clusterMembers, ISerializationService serializationService, Func <ValueTask> terminateAsync)
{
_clusterState = clusterState;
_clusterClusterEvents = clusterClusterEvents;
_clusterEvents = clusterEvents;
_clusterMembers = clusterMembers;
_serializationService = serializationService;
_terminateAsync = terminateAsync;
_logger = _clusterState.LoggerFactory.CreateLogger <ClusterConnections>();
_authenticator = _clusterState.Options.Authentication.Authenticator.Service ??
new Authenticator(_clusterState.Options.Authentication);
}
/// <summary>
/// Initializes a new instance of the <see cref="ClusterClusterEvents"/> class.
/// </summary>
/// <param name="clusterState">The cluster state.</param>
/// <param name="clusterMembers">The cluster members.</param>
/// <param name="clusterEvents">The cluster events.</param>
public ClusterClusterEvents(ClusterState clusterState, ClusterMembers clusterMembers, ClusterEvents clusterEvents)
{
_clusterState = clusterState;
_clusterEvents = clusterEvents;
_objectLifecycleEventSubscription = new ObjectLifecycleEventSubscription(_clusterState, clusterEvents)
{
Handle = (eventType, args) => _onObjectLifeCycleEvent(eventType, args)
};
_partitionLostEventSubscription = new PartitionLostEventSubscription(_clusterState, clusterEvents, clusterMembers)
{
Handle = args => _onPartitionLost(args)
};
}
/// <summary>
/// Initializes a new instance of the <see cref="ClusterClusterEvents"/> class.
/// </summary>
/// <param name="clusterState">The cluster state.</param>
/// <param name="clusterMembers">The cluster members.</param>
/// <param name="clusterEvents">The cluster events.</param>
public ClusterClusterEvents(ClusterState clusterState, ClusterMembers clusterMembers, ClusterEvents clusterEvents)
{
_clusterState = clusterState;
_objectLifecycleEventSubscription = new ObjectLifecycleEventSubscription(_clusterState, clusterEvents)
{
ObjectCreated = args => _objectCreated.AwaitEach(args),
ObjectDestroyed = args => _objectDestroyed.AwaitEach(args)
};
_partitionLostEventSubscription = new PartitionLostEventSubscription(_clusterState, clusterEvents, clusterMembers)
{
PartitionLost = args => _partitionLost.AwaitEach(args)
};
}
private volatile int _disposed; // disposed flag
/// <summary>
/// Initializes a new instance of the <see cref="ClusterConnections"/> class.
/// </summary>
public ClusterConnections(ClusterState clusterState, ClusterMembers clusterMembers, SerializationService serializationService)
{
_clusterState = clusterState;
_clusterMembers = clusterMembers;
_logger = _clusterState.LoggerFactory.CreateLogger <ClusterConnections>();
_authenticator = new Authenticator(_clusterState.Options.Authentication, serializationService);
_addressProvider = new AddressProvider(_clusterState.Options.Networking, _clusterState.LoggerFactory);
_connectRetryStrategy = new RetryStrategy("connect to cluster", _clusterState.Options.Networking.ConnectionRetry, _clusterState.LoggerFactory);
if (_clusterState.IsSmartRouting)
{
_smartRouting = true;
_connectAddresses = new ConnectAddresses(GetOrConnectAsync, _clusterState.LoggerFactory);
}
HConsole.Configure(options => options.Set(this, x => x.SetPrefix("CCNX")));
}
private volatile int _disposed; // disposed flag
/// <summary>
/// Initializes a new instance of the <see cref="Cluster"/> class.
/// </summary>
/// <param name="options">The cluster configuration.</param>
/// <param name="serializationService">The serialization service.</param>
/// <param name="loggerFactory">A logger factory.</param>
public Cluster(IClusterOptions options, SerializationService serializationService, ILoggerFactory loggerFactory)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
if (serializationService == null)
{
throw new ArgumentNullException(nameof(serializationService));
}
if (loggerFactory is null)
{
throw new ArgumentNullException(nameof(loggerFactory));
}
var clientName = string.IsNullOrWhiteSpace(options.ClientName)
? options.ClientNamePrefix + ClusterIdSequence.GetNext()
: options.ClientName;
var clusterName = string.IsNullOrWhiteSpace(options.ClusterName) ? "dev" : options.ClusterName;
State = new ClusterState(options, clusterName, clientName, new Partitioner(), loggerFactory);
State.ShutdownRequested += () =>
{
// yes, we are starting a fire-and-forget task
// but, DisposeAsync should never throw
// yet we add a CfAwaitNoThrow() for more safety
DisposeAsync().CfAwaitNoThrow();
};
// create components
_terminateConnections = new TerminateConnections(loggerFactory);
Members = new ClusterMembers(State, _terminateConnections);
Messaging = new ClusterMessaging(State, Members);
Events = new ClusterEvents(State, Messaging, _terminateConnections, Members);
Connections = new ClusterConnections(State, Members, serializationService);
_heartbeat = new Heartbeat(State, Messaging, options.Heartbeat, _terminateConnections);
// wire components
WireComponents();
HConsole.Configure(x => x.Configure <Cluster>().SetIndent(2).SetPrefix("CLUSTER"));
}
private volatile int _disposed; // disposed flag
/// <summary>
/// Initializes a new instance of the <see cref="ClusterConnections"/> class.
/// </summary>
public ClusterConnections(ClusterState clusterState, ClusterMembers clusterMembers, SerializationService serializationService)
{
_clusterState = clusterState;
_clusterMembers = clusterMembers;
_logger = _clusterState.LoggerFactory.CreateLogger <ClusterConnections>();
_authenticator = new Authenticator(_clusterState.Options.Authentication, serializationService, _clusterState.LoggerFactory);
_addressProvider = new AddressProvider(_clusterState.Options.Networking, _clusterState.LoggerFactory);
_connectRetryStrategy = new RetryStrategy("connect to cluster", _clusterState.Options.Networking.ConnectionRetry, _clusterState.LoggerFactory);
if (_clusterState.IsSmartRouting)
{
_connectMembers = ConnectMembers(_cancel.Token);
}
_clusterState.StateChanged += OnStateChanged;
HConsole.Configure(x => x.Configure <ClusterConnections>().SetPrefix("CCNX"));
}
private volatile int _disposed; // disposed flag
/// <summary>
/// Initializes a new instance of the <see cref="Cluster"/> class.
/// </summary>
/// <param name="options">The cluster configuration.</param>
/// <param name="serializationService">The serialization service.</param>
/// <param name="loggerFactory">A logger factory.</param>
public Cluster(
IClusterOptions options,
ISerializationService serializationService,
ILoggerFactory loggerFactory)
{
_options = options ?? throw new ArgumentNullException(nameof(options));
if (serializationService == null)
{
throw new ArgumentNullException(nameof(serializationService));
}
if (loggerFactory is null)
{
throw new ArgumentNullException(nameof(loggerFactory));
}
_logger = loggerFactory.CreateLogger <Cluster>();
DefaultOperationTimeoutMilliseconds = options.Messaging.DefaultOperationTimeoutMilliseconds;
Partitioner = new Partitioner();
var loadBalancer = options.LoadBalancing.LoadBalancer.Service ?? new RoundRobinLoadBalancer();
var clientName = string.IsNullOrWhiteSpace(options.ClientName)
? options.ClientNamePrefix + ClusterIdSequence.GetNext()
: options.ClientName;
var clusterName = string.IsNullOrWhiteSpace(options.ClusterName) ? "dev" : options.ClusterName;
_clusterState = new ClusterState(options, clusterName, clientName, Partitioner, loadBalancer, loggerFactory);
Members = new ClusterMembers(_clusterState);
Messaging = new ClusterMessaging(_clusterState, Members);
Events = new ClusterEvents(_clusterState, Messaging, Members);
ClusterEvents = new ClusterClusterEvents(_clusterState, Members, Events);
Connections = new ClusterConnections(_clusterState, ClusterEvents, Events, Members, serializationService, TerminateAsync);
_heartbeat = new Heartbeat(_clusterState, Members, Messaging, options.Heartbeat, loggerFactory);
_heartbeat.Start();
HConsole.Configure(this, config => config.SetIndent(2).SetPrefix("CLUSTER"));
}
public ClusterEvents(ClusterState clusterState, ClusterMessaging clusterMessaging, TerminateConnections terminateConnections, ClusterMembers clusterMembers)
{
_clusterState = clusterState;
_clusterMessaging = clusterMessaging;
_clusterMembers = clusterMembers;
_logger = _clusterState.LoggerFactory.CreateLogger <ClusterEvents>();
_scheduler = new DistributedEventScheduler(_clusterState.LoggerFactory);
_terminateConnections = terminateConnections;
_objectLifecycleEventSubscription = new ObjectLifecycleEventSubscription(_clusterState, this)
{
ObjectCreated = args => _objectCreated.AwaitEach(args),
ObjectDestroyed = args => _objectDestroyed.AwaitEach(args)
};
_partitionLostEventSubscription = new PartitionLostEventSubscription(_clusterState, this, clusterMembers)
{
PartitionLost = args => _partitionLost.AwaitEach(args)
};
}
private volatile int _disposed; // disposed flag
/// <summary>
/// Initializes a new instance of the <see cref="Cluster"/> class.
/// </summary>
/// <param name="options">The cluster configuration.</param>
/// <param name="serializationService">The serialization service.</param>
/// <param name="loggerFactory">A logger factory.</param>
public Cluster(
IClusterOptions options,
SerializationService serializationService,
ILoggerFactory loggerFactory)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
if (serializationService == null)
{
throw new ArgumentNullException(nameof(serializationService));
}
if (loggerFactory is null)
{
throw new ArgumentNullException(nameof(loggerFactory));
}
_logger = loggerFactory.CreateLogger <Cluster>();
var clientName = string.IsNullOrWhiteSpace(options.ClientName)
? options.ClientNamePrefix + ClusterIdSequence.GetNext()
: options.ClientName;
var clusterName = string.IsNullOrWhiteSpace(options.ClusterName) ? "dev" : options.ClusterName;
State = new ClusterState(options, clusterName, clientName, new Partitioner(), loggerFactory);
Members = new ClusterMembers(State);
Messaging = new ClusterMessaging(State, Members);
Events = new ClusterEvents(State, Messaging, Members);
ClusterEvents = new ClusterClusterEvents(State, Members, Events);
Connections = new ClusterConnections(State, Members, serializationService);
_heartbeat = new Heartbeat(State, Members, Messaging, options.Heartbeat, loggerFactory);
HConsole.Configure(x => x.Set(this, config => config.SetIndent(2).SetPrefix("CLUSTER")));
}
public PartitionLostEventSubscription(ClusterState clusterState, ClusterEvents clusterEvents, ClusterMembers clusterMembers)
: base(clusterState, clusterEvents)
{
_clusterMembers = clusterMembers;
_isSmart = clusterState.Options.Networking.SmartRouting;
}
/// <summary>
/// Initializes a new instance of the <see cref="ClusterMessaging"/> class.
/// </summary>
/// <param name="clusterState">The cluster state.</param>
/// <param name="clusterMembers">The cluster members.</param>
public ClusterMessaging(ClusterState clusterState, ClusterMembers clusterMembers)
{
_clusterState = clusterState;
_clusterMembers = clusterMembers;
}