/// <inheritdoc /> public Task <BoolResult> ShutdownAsync(Context context) { ShutdownStarted = true; return(ShutdownCall <BuildCacheCacheTracer> .RunAsync(_tracer, context, async() => { var statsResult = await GetStatsInternalAsync(context).ConfigureAwait(false); if (statsResult.Succeeded) { _tracer.TraceStatisticsAtShutdown(context, statsResult.CounterSet, prefix: "BuildCacheCacheStats"); } else { _tracer.Debug(context, $"Getting stats failed: [{statsResult}]"); } var backingContentStoreTask = Task.Run(async() => await _backingContentStore.ShutdownAsync(context).ConfigureAwait(false)); var writeThroughContentStoreResult = _writeThroughContentStore != null ? await _writeThroughContentStore.ShutdownAsync(context) : BoolResult.Success; var backingContentStoreResult = await backingContentStoreTask.ConfigureAwait(false); BoolResult result; if (backingContentStoreResult.Succeeded && writeThroughContentStoreResult.Succeeded) { result = BoolResult.Success; } else { var sb = new StringBuilder(); if (!backingContentStoreResult.Succeeded) { sb.Append($"Backing content store shutdown failed, error=[{backingContentStoreResult}]"); } if (!writeThroughContentStoreResult.Succeeded) { sb.Append($"Write-through content store shutdown failed, error=[{writeThroughContentStoreResult}]"); } result = new BoolResult(sb.ToString()); } ShutdownCompleted = true; return result; })); }
/// <inheritdoc /> public Task <BoolResult> StartupAsync(Context context) { StartupStarted = true; return(StartupCall <BuildCacheCacheTracer> .RunAsync(_tracer, context, async() => { BoolResult result; _tracer.Debug(context, $"Creating ContentHashListAdapterFactory with {nameof(_useBlobContentHashLists)}={_useBlobContentHashLists}"); _contentHashListAdapterFactory = await ContentHashListAdapterFactory.CreateAsync( context, _buildCacheHttpClientFactory, _useBlobContentHashLists); Id = await _contentHashListAdapterFactory.BuildCacheHttpClient.GetBuildCacheServiceDeterminism(_cacheNamespace) .ConfigureAwait(false); var backingContentStoreTask = Task.Run(async() => await _backingContentStore.StartupAsync(context).ConfigureAwait(false)); var writeThroughContentStoreResult = _writeThroughContentStore != null ? await _writeThroughContentStore.StartupAsync(context).ConfigureAwait(false) : BoolResult.Success; var backingContentStoreResult = await backingContentStoreTask.ConfigureAwait(false); if (backingContentStoreResult.Succeeded && writeThroughContentStoreResult.Succeeded) { result = BoolResult.Success; } else { var sb = new StringBuilder(); if (backingContentStoreResult.Succeeded) { var r = await _backingContentStore.ShutdownAsync(context).ConfigureAwait(false); if (!r.Succeeded) { sb.Append($"Backing content store shutdown failed, error=[{r}]"); } } else { sb.Append($"Backing content store startup failed, error=[{backingContentStoreResult}]"); } if (writeThroughContentStoreResult.Succeeded) { var r = _writeThroughContentStore != null ? await _writeThroughContentStore.ShutdownAsync(context).ConfigureAwait(false) : BoolResult.Success; if (!r.Succeeded) { sb.Append(sb.Length > 0 ? ", " : string.Empty); sb.Append($"Write-through content store shutdown failed, error=[{r}]"); } } else { sb.Append(sb.Length > 0 ? ", " : string.Empty); sb.Append($"Write-through content store startup failed, error=[{writeThroughContentStoreResult}]"); } result = new BoolResult(sb.ToString()); } StartupCompleted = true; return result; })); }
/// <inheritdoc /> public Task <BoolResult> ShutdownAsync(Context context) { ShutdownStarted = true; return(ShutdownCall <MemoizationStoreTracer> .RunAsync(Tracer.MemoizationStoreTracer, context, async() => { Tracer.Debug(context, "IncorporateOnShutdown start"); Tracer.Debug(context, $"Incorporate fingerprints feature enabled:[{_fingerprintIncorporationEnabled}]"); Tracer.Debug(context, $"Total fingerprints to be incorporated:[{FingerprintTracker.Count}]"); Tracer.Debug(context, $"Max fingerprints per incorporate request(=chunk size):[{_maxFingerprintsPerIncorporateRequest}]"); Tracer.Debug(context, $"Max incorporate requests allowed in parallel:[{_maxDegreeOfParallelismForIncorporateRequests}]"); if (_fingerprintIncorporationEnabled) { // Incorporating all of the fingerprints for a build, in one request, to a single endpoint causes pain. Incorporation involves // extending the lifetime of all fingerprints *and* content/s mapped to each fingerprint. Processing a large request payload // results in, potentially, fanning out a massive number of "lifetime extend" requests to itemstore and blobstore, which can // bring down the endpoint. Break this down into chunks so that multiple, load-balanced endpoints can share the burden. List <StrongFingerprint> fingerprintsToBump = FingerprintTracker.StaleFingerprints.ToList(); Tracer.Debug(context, $"Total fingerprints to be sent in incorporation requeststo the service: {fingerprintsToBump.Count}"); List <List <StrongFingerprintAndExpiration> > chunks = fingerprintsToBump.Select( strongFingerprint => new StrongFingerprintAndExpiration(strongFingerprint, FingerprintTracker.GenerateNewExpiration()) ).GetPages(_maxFingerprintsPerIncorporateRequest).ToList(); Tracer.Debug(context, $"Total fingerprint incorporation requests to be issued(=number of fingerprint chunks):[{chunks.Count}]"); var incorporateBlock = new ActionBlock <IEnumerable <StrongFingerprintAndExpiration> >( async chunk => { await ContentHashListAdapter.IncorporateStrongFingerprints( context, CacheNamespace, new IncorporateStrongFingerprintsRequest(chunk.ToList().AsReadOnly()) ).ConfigureAwait(false); }, new ExecutionDataflowBlockOptions { MaxDegreeOfParallelism = _maxDegreeOfParallelismForIncorporateRequests }); foreach (var chunk in chunks) { await incorporateBlock.SendAsync(chunk); } incorporateBlock.Complete(); await incorporateBlock.Completion.ConfigureAwait(false); // TODO: Gracefully handle exceptions so that the rest of shutdown can happen (bug 1365340) Tracer.Debug(context, "IncorporateOnShutdown stop"); } if (_taskTracker != null) { await _taskTracker.Synchronize().ConfigureAwait(false); await _taskTracker.ShutdownAsync(context).ConfigureAwait(false); } var backingContentSessionTask = Task.Run(async() => await BackingContentSession.ShutdownAsync(context).ConfigureAwait(false)); var writeThroughContentSessionResult = WriteThroughContentSession != null ? await WriteThroughContentSession.ShutdownAsync(context).ConfigureAwait(false) : BoolResult.Success; var backingContentSessionResult = await backingContentSessionTask.ConfigureAwait(false); BoolResult result; if (backingContentSessionResult.Succeeded && writeThroughContentSessionResult.Succeeded) { if (_sealingErrorsToPrintOnShutdown.Any()) { var sb = new StringBuilder(); sb.AppendLine("Error(s) during background sealing:"); foreach (var sealingError in _sealingErrorsToPrintOnShutdown) { sb.AppendLine($"[{sealingError}]"); } if (_sealingErrorCount > MaxSealingErrorsToPrintOnShutdown) { sb.AppendLine($"See log for the other {MaxSealingErrorsToPrintOnShutdown - _sealingErrorCount} error(s)."); } result = new BoolResult(sb.ToString()); } else { result = BoolResult.Success; } } else { var sb = new StringBuilder(); if (!backingContentSessionResult.Succeeded) { sb.Append($"Backing content session shutdown failed, error=[{backingContentSessionResult}]"); } if (!writeThroughContentSessionResult.Succeeded) { sb.Append(sb.Length > 0 ? ", " : string.Empty); sb.Append($"Write-through content session shutdown failed, error=[{writeThroughContentSessionResult}]"); } result = new BoolResult(sb.ToString()); } ShutdownCompleted = true; return result; })); }