protected override async Task <BoolResult> StartupCoreAsync(OperationContext context)
{
await _container.CreateIfNotExistsAsync(
accessType : BlobContainerPublicAccessType.Off,
options : null,
operationContext : null,
cancellationToken : context.Token);
// Any logs in the staging are basically lost: they were in memory only, and we crashed or failed as we
// were writing them. We just recreate the directory.
try
{
_fileSystem.DeleteDirectory(_configuration.StagingFolderPath, DeleteOptions.Recurse);
}
catch (DirectoryNotFoundException)
{
}
_fileSystem.CreateDirectory(_configuration.StagingFolderPath);
_fileSystem.CreateDirectory(_configuration.UploadFolderPath);
_writeQueue.Start(WriteBatchAsync);
_uploadQueue.Start(UploadBatchAsync);
return(RecoverFromCrash(context));
}
/// <inheritdoc />
protected override async Task <BoolResult> StartupCoreAsync(OperationContext context)
{
// NOTE: We create and start the content location store before the inner content store just in case the
// inner content store starts background eviction after startup. We need the content store to be initialized
// so that it can be queried and used to unregister content.
await _contentLocationStoreFactory.StartupAsync(context).ThrowIfFailure();
_contentLocationStore = await _contentLocationStoreFactory.CreateAsync();
_distributedCopier = _distributedCopierFactory(_contentLocationStore);
await _distributedCopier.StartupAsync(context).ThrowIfFailure();
if (_contentLocationStore is TransitioningContentLocationStore tcs)
{
tcs.LocalLocationStore.PreStartupInitialize(context, InnerContentStore as ILocalContentStore, _distributedCopier);
}
// Initializing inner store before initializing LocalLocationStore because
// LocalLocationStore may use inner store for reconciliation purposes
await InnerContentStore.StartupAsync(context).ThrowIfFailure();
await _contentLocationStore.StartupAsync(context).ThrowIfFailure();
Func <ContentHash[], Task> evictionHandler;
var localContext = new Context(context);
if (_enableDistributedEviction)
{
evictionHandler = hashes => EvictContentAsync(localContext, hashes);
}
else
{
evictionHandler = hashes => DistributedGarbageCollectionAsync(localContext, hashes);
}
// Queue is created in unstarted state because the eviction function
// requires the context passed at startup. So we start the queue here.
_evictionNagleQueue.Start(evictionHandler);
var touchContext = new Context(context);
_touchNagleQueue = NagleQueue <ContentHashWithSize> .Create(
hashes => TouchBulkAsync(touchContext, hashes),
Redis.RedisContentLocationStoreConstants.BatchDegreeOfParallelism,
Redis.RedisContentLocationStoreConstants.BatchInterval,
batchSize : _locationStoreBatchSize);
return(BoolResult.Success);
}
/// <inheritdoc />
protected override async Task <BoolResult> StartupCoreAsync(OperationContext context)
{
// NOTE: We create and start the content location store before the inner content store just in case the
// inner content store starts background eviction after startup. We need the content store to be initialized
// so that it can be queried and used to unregister content.
await _contentLocationStoreFactory.StartupAsync(context).ThrowIfFailure();
_contentLocationStore = await _contentLocationStoreFactory.CreateAsync(LocalMachineLocation);
_distributedCopier = _distributedCopierFactory(_contentLocationStore);
await _distributedCopier.StartupAsync(context).ThrowIfFailure();
if (_contentLocationStore is TransitioningContentLocationStore tcs && tcs.IsLocalLocationStoreEnabled)
{
// Define proactive copy logic.
async Task <ResultBase> proactiveCopyTaskFactory(OperationContext operationContext, ContentHash hash)
{
var sessionResult = await _proactiveCopySession.Value;
if (sessionResult)
{
return(await sessionResult.Value.ProactiveCopyIfNeededAsync(operationContext, hash, tryBuildRing : false));
}
return(new BoolResult("Failed to retrieve session for proactive copies."));
}
tcs.LocalLocationStore.PreStartupInitialize(context, InnerContentStore as ILocalContentStore, _distributedCopier, proactiveCopyTaskFactory);
}
// Initializing inner store before initializing LocalLocationStore because
// LocalLocationStore may use inner store for reconciliation purposes
await InnerContentStore.StartupAsync(context).ThrowIfFailure();
await _contentLocationStore.StartupAsync(context).ThrowIfFailure();
Func <ContentHash[], Task> evictionHandler;
var localContext = context.CreateNested();
if (_enableDistributedEviction)
{
evictionHandler = hashes => EvictContentAsync(localContext, hashes);
}
else
{
evictionHandler = hashes => DistributedGarbageCollectionAsync(localContext, hashes);
}
// Queue is created in unstarted state because the eviction function
// requires the context passed at startup. So we start the queue here.
_evictionNagleQueue.Start(evictionHandler);
var touchContext = context.CreateNested();
_touchNagleQueue = NagleQueue <ContentHashWithSize> .Create(
hashes => TouchBulkAsync(touchContext, hashes),
Redis.RedisContentLocationStoreConstants.BatchDegreeOfParallelism,
Redis.RedisContentLocationStoreConstants.BatchInterval,
batchSize : _locationStoreBatchSize);
return(BoolResult.Success);
}
