/// <summary>
/// Class constructor
/// </summary>
public BondWorkerClient(
LoggingContext loggingContext,
string workerName,
string ipAddress,
int port,
DistributionServices services,
EventHandler onActivateConnection,
EventHandler onDeactivateConnection,
EventHandler onConnectionTimeOut)
{
m_loggingContext = loggingContext;
m_workerName = workerName;
m_proxyManager = new BondProxyConnectionManager <WorkerProxyAdapter>(
client: new BondTcpClient <WorkerProxyAdapter>(
new BondHostLog(loggingContext, ipAddress, port),
new BondConnectOptions(true, (uint)EngineEnvironmentSettings.DistributionConnectTimeout.Value.TotalMilliseconds)),
loggingContext: loggingContext,
services: services,
createProxyCallback: client => new WorkerProxyAdapter(
ResiliencyTestBondTransportClient.TryWrapClientForTest(DistributedBuildRoles.Master, client)));
m_proxyManager.OnActivateConnection += onActivateConnection;
m_proxyManager.OnDeactivateConnection += onDeactivateConnection;
m_proxyManager.OnConnectionTimeOut += onConnectionTimeOut;
m_proxyManager.Start(ipAddress, port, this);
}
/// <summary>
/// Class constructor
/// </summary>
/// <param name="client">the bond tcp client used to create the proxy</param>
/// <param name="createProxyCallback">callback used to create a bond proxy</param>
/// <param name="loggingContext">the logging context</param>
/// <param name="services">shared services for distribution</param>
/// <param name="maxConnectionConcurrency">the maximum number of connections</param>
public BondProxyConnectionManager(
BondTcpClient <TProxy> client,
BondTcpClient <TProxy> .CreateProxyCallback createProxyCallback,
LoggingContext loggingContext,
DistributionServices services,
int maxConnectionConcurrency = 1)
{
m_client = client;
m_createProxyCallback = createProxyCallback;
m_loggingContext = loggingContext;
m_maxConnectionConcurrency = maxConnectionConcurrency;
m_services = services;
m_bufferManager = services.BufferManager;
m_proxySemaphore = new NullSemaphore();
// m_proxySemaphore = new SemaphoreSlim(m_maxConnectionConcurrency);
m_stopwatch = Stopwatch.StartNew();
m_heartbeatTimer = new Timer(HeartbeatTimerCallback);
m_connections = new TrackedConnection[m_maxConnectionConcurrency];
for (int i = 0; i < m_maxConnectionConcurrency; i++)
{
m_connections[i] = new TrackedConnection(this);
}
m_isActiveCompletionSource = TaskSourceSlim.Create <bool>();
}
/// <nodoc/>
public void Start(DistributionServices services, EventHandler onConnectionTimeOut)
{
m_proxyManager = new BondProxyConnectionManager <MasterProxyAdapter>(
client: m_bondTcpClient,
loggingContext: m_loggingContext,
services: services,
createProxyCallback: client => new BondMasterClient.MasterProxyAdapter(
ResiliencyTestBondTransportClient.TryWrapClientForTest(DistributedBuildRoles.Worker, client)));
m_proxyManager.OnConnectionTimeOut += onConnectionTimeOut;
m_proxyManager.Start(m_ipAddress, m_port, this);
}
/// <summary>
/// Class constructor
/// </summary>
public TracingBondService(int port, BondService innerService, DistributionServices services, LoggingContext loggingContext, params ServiceFunctionRegistration[] registrations)
: base(innerService.ServiceName)
{
Contract.Requires(innerService != null);
Contract.Requires(loggingContext != null);
Contract.Requires(services != null);
Analysis.IgnoreArgument(port);
m_services = services;
m_innerService = innerService;
m_loggingContext = loggingContext;
m_stopwatch = Stopwatch.StartNew();
foreach (var registration in registrations)
{
registration.Register(this);
}
}
private async Task <RpcCallResult <T> > CallCore <T>(
Func <TrackedConnection, BondCallTracker, Task <T> > callAsync,
CancellationToken cancellationToken,
string functionName,
BondCallTracker callTracker,
bool allowInactive = false,
Func <T, bool> shouldRetry = null,
uint maxTryCount = 0)
{
Contract.Requires(functionName != null);
callTracker = callTracker ?? CreateLoggingCallTracker(functionName);
TimeSpan waitForConnectionDuration = default(TimeSpan);
Failure lastFailure = null;
m_outstandingCalls.AddOrUpdate(functionName, 1, (k, i) => i + 1);
// For heartbeat only try once
if (maxTryCount == 0)
{
maxTryCount = DefaultMaxRetryCount;
}
for (uint retryCount = 0; retryCount < maxTryCount; retryCount++)
{
callTracker.TryCount = retryCount;
if (retryCount != 0)
{
// For retries, log a call start with the call tracker's updated retry count
callTracker.OnStateChanged(BondCallState.Started);
// Yield after first iteration to ensure
// we don't overflow the stack with async continuations
await Task.Yield();
}
TrackedConnection connection = null;
try
{
var startWaitForConnection = m_stopwatch.Elapsed;
callTracker.OnStateChanged(BondCallState.WaitingForConnection);
// Wait for a connection to become active via the a successful heartbeat
using (var connectionScope = await WaitForConnectionAsync(callTracker, allowInactive, cancellationToken))
{
// Log wait for connection success
var iterationWaitForConnectionDuration = GetElapsed(startWaitForConnection);
waitForConnectionDuration += iterationWaitForConnectionDuration;
callTracker.OnStateChanged(BondCallState.CompletedWaitForConnection);
// connection is not returned in the case that the proxy is shutting down or timed out
// other case is that this is a failed heartbeat call. In which case, just continue.
if (connectionScope.Connection == null)
{
if (m_isShuttingDown || m_exceededInactivityTimeout)
{
// Log the failure
lastFailure = new RecoverableExceptionFailure(new BuildXLException(m_isShuttingDown ?
"Bond RPC Call failure: Proxy is shutting down" :
"Bond RPC Call failure: Proxy timed out"));
callTracker.LogMessage("Could not retrieve connection. Failure={0}", lastFailure.DescribeIncludingInnerFailures());
callTracker.OnStateChanged(BondCallState.Failed);
return(new RpcCallResult <T>(RpcCallResultState.Failed, retryCount + 1, callTracker.TotalDuration, waitForConnectionDuration, lastFailure));
}
continue;
}
connection = connectionScope.Connection;
// Make the actual call
var result = await callAsync(connection, callTracker);
// Check if call should be retried
if (shouldRetry != null && shouldRetry(result))
{
continue;
}
// Log the call completion
callTracker.OnStateChanged(BondCallState.Succeeded);
m_proxyLogger.LogSuccessfulCall(m_loggingContext, functionName, retryCount);
connectionScope.MarkSucceeded();
m_services.Counters.AddToCounter(DistributionCounter.SendPipBuildRequestCallDurationMs, (long)callTracker.TotalDuration.TotalMilliseconds);
return(new RpcCallResult <T>(result, retryCount + 1, callTracker.TotalDuration, waitForConnectionDuration));
}
}
catch (OperationCanceledException)
{
callTracker.OnStateChanged(BondCallState.Canceled);
return(new RpcCallResult <T>(RpcCallResultState.Cancelled, retryCount + 1, callTracker.TotalDuration, waitForConnectionDuration));
}
catch (Exception ex)
{
// If shutting down just return the failed result
if (ex is ObjectDisposedException && m_isShuttingDown)
{
lastFailure = new RecoverableExceptionFailure(new BuildXLException("Bond RPC Call failure: Proxy is shutting down", ex));
callTracker.LogMessage("{0}", lastFailure.DescribeIncludingInnerFailures());
callTracker.OnStateChanged(BondCallState.Failed);
return(new RpcCallResult <T>(RpcCallResultState.Failed, retryCount + 1, callTracker.TotalDuration, waitForConnectionDuration));
}
if (DistributionServices.IsBuildIdMismatchException(ex))
{
m_proxyLogger.LogCallException(m_loggingContext, functionName, retryCount, ex);
// If a message with different build is received, it means that the sender has participated in a different distributed build.
// Then, we need to lose the connection with the sender.
OnConnectionTimeOut?.Invoke(this, EventArgs.Empty);
return(new RpcCallResult <T>(RpcCallResultState.Failed, retryCount + 1, callTracker.TotalDuration, waitForConnectionDuration));
}
// If not a transient exception, log and throw
if (!DistributionHelpers.IsTransientBondException(ex, m_services.Counters) && !m_services.IsChecksumMismatchException(ex))
{
m_proxyLogger.LogCallException(m_loggingContext, functionName, retryCount, ex);
throw;
}
// Otherwise, the exception is transient, so log exception and try again
lastFailure = new RecoverableExceptionFailure(new BuildXLException("Failed Bond RPC call", ex));
callTracker.LogMessage("{0}", lastFailure.DescribeIncludingInnerFailures());
// Deactivate connection so subsequent calls on the proxy will wait for heartbeat before trying to make call.
DeactivateConnection(connection);
m_services.Counters.AddToCounter(DistributionCounter.FailedSendPipBuildRequestCallDurationMs, (long)callTracker.TotalDuration.TotalMilliseconds);
m_services.Counters.IncrementCounter(DistributionCounter.FailedSendPipBuildRequestCount);
m_proxyLogger.LogFailedCall(m_loggingContext, functionName, retryCount, lastFailure);
}
finally
{
m_outstandingCalls.AddOrUpdate(functionName, 0, (k, i) => i - 1);
}
}
// Exceeded retry count.
callTracker.LogMessage("Call failed and exhausted allowed retries. LastFailure={0}", lastFailure?.DescribeIncludingInnerFailures() ?? string.Empty);
callTracker.OnStateChanged(BondCallState.Failed);
return(new RpcCallResult <T>(RpcCallResultState.Failed, DefaultMaxRetryCount, callTracker.TotalDuration, waitForConnectionDuration, lastFailure));
}
public BondWorkerServer(LoggingContext loggingContext, WorkerService workerService, int port, DistributionServices services)
{
m_loggingContext = loggingContext;
m_port = port;
m_workerService = workerService;
m_tracingBondService = new TracingBondService(port, this, services, loggingContext,
TracingBondService.GenerateRegistrationVoid <BuildStartData>("Attach"),
TracingBondService.GenerateRegistrationVoid <PipBuildRequest>("ExecutePips"),
TracingBondService.GenerateRegistrationVoidVoid("Exit"),
TracingBondService.GenerateRegistrationVoidVoid("Heartbeat"));
}