無法將文件上傳到Azure存儲C＃？

Question

我正在嘗試使用C＃簡單上傳到Azure存儲。 它適用於小文件，但是當我嘗試上傳40mb的文件時，它不會上傳。 我在上傳中停留了大約20分鍾，然后最終取消了通話。

var storageConnectionString = "XXXXXXX";
            var storageAccount = CloudStorageAccount.Parse(storageConnectionString);
            var blobClient = storageAccount.CreateCloudBlobClient();

            //Gets the folder with the MediaID
            CloudBlobContainer videoscontainer = blobClient.GetContainerReference("TestFolder");

            CloudBlockBlob videofile = videoscontainer.GetBlockBlobReference(("test" + ".mp4"));


            //Save blob contents to a temp video file.
            var videostream = new FileStream(@"XXXXXX.mp4", FileMode.Open, FileAccess.Read);
            videofile.UploadFromStream(videostream);
            videostream.Close();

我有一個不錯的互聯網，所以我敢肯定，只有40mb的上傳時間不能超過20分鍾。 最難的部分是，我不知道遇到什么錯誤。 我嘗試在存儲中進行手動上傳，但大約2分鍾就完成了。

編輯：我一直在等待直到收到回調並收到此錯誤。

錯誤：

"Message": "An error has occurred.",
    "ExceptionMessage": "The request was aborted: The request was canceled.",
    "ExceptionType": "Microsoft.WindowsAzure.Storage.StorageException",
    "StackTrace": "   at Microsoft.WindowsAzure.Storage.Core.Executor.Executor.ExecuteSync[T](RESTCommand`1 cmd, IRetryPolicy policy, OperationContext operationContext) in c:\\Program Files (x86)\\Jenkins\\workspace\\release_dotnet_master\\Lib\\ClassLibraryCommon\\Core\\Executor\\Executor.cs:line 604\r\n   at Microsoft.WindowsAzure.Storage.Blob.CloudBlockBlob.UploadFromStreamHelper(Stream source, Nullable`1 length, AccessCondition accessCondition, BlobRequestOptions options, OperationContext operationContext) in c:\\Program Files (x86)\\Jenkins\\workspace\\release_dotnet_master\\Lib\\ClassLibraryCommon\\Blob\\CloudBlockBlob.cs:line 411\r\n   at Microsoft.WindowsAzure.Storage.Blob.CloudBlockBlob.UploadFromStream(Stream source, AccessCondition accessCondition, BlobRequestOptions options, OperationContext operationContext) in c:\\Program Files (x86)\\Jenkins\\workspace\\release_dotnet_master\\Lib\\ClassLibraryCommon\\Blob\\CloudBlockBlob.cs:line 309\r\n   at StoneFunctions.Controllers.ValuesController.<UploadSingleFile>d__0.MoveNext() in C:\\Users\\Alan\\source\\repos\\Stone\\StoneFunctions\\Controllers\\ValuesController.cs:line 49\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Threading.Tasks.TaskHelpersExtensions.<CastToObject>d__3`1.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()",
    "InnerException": {
        "Message": "An error has occurred.",
        "ExceptionMessage": "The request was aborted: The request was canceled.",
        "ExceptionType": "System.Net.WebException",
        "StackTrace": "   at System.Net.ConnectStream.InternalWrite(Boolean async, Byte[] buffer, Int32 offset, Int32 size, AsyncCallback callback, Object state)\r\n   at System.Net.ConnectStream.Write(Byte[] buffer, Int32 offset, Int32 size)\r\n   at Microsoft.WindowsAzure.Storage.Core.ByteCountingStream.Write(Byte[] buffer, Int32 offset, Int32 count) in c:\\Program Files (x86)\\Jenkins\\workspace\\release_dotnet_master\\Lib\\ClassLibraryCommon\\Core\\ByteCountingStream.cs:line 180\r\n   at Microsoft.WindowsAzure.Storage.Core.Util.StreamExtensions.WriteToSync[T](Stream stream, Stream toStream, Nullable`1 copyLength, Nullable`1 maxLength, Boolean calculateMd5, Boolean syncRead, ExecutionState`1 executionState, StreamDescriptor streamCopyState) in c:\\Program Files (x86)\\Jenkins\\workspace\\release_dotnet_master\\Lib\\Common\\Core\\Util\\StreamExtensions.cs:line 169\r\n   at Microsoft.WindowsAzure.Storage.Core.Executor.Executor.ExecuteSync[T](RESTCommand`1 cmd, IRetryPolicy policy, OperationContext operationContext) in c:\\Program Files (x86)\\Jenkins\\workspace\\release_dotnet_master\\Lib\\ClassLibraryCommon\\Core\\Executor\\Executor.cs:line 670"
    }

Answer 1

我相信錯誤是由於BlobRequestOptions.SingleBlobUploadThresholdInBytes值BlobRequestOptions.SingleBlobUploadThresholdInBytes 。 此值本質上指定了可以上載而不分解成塊的Blob的最大大小。 如果您沒有為此屬性指定任何值，則默認值為128MB 。 由於未明確設置，並且blob大小為40MB ，Azure Storage SDK嘗試在單個請求中上傳此40MB數據，而不將其分成多個塊，並且該請求以某種方式超時。

要解決此問題，請將該值明確設置為2MB或4MB 。 然后，SDK會將您的40MB文件分成20（或10）個塊，並上傳這些塊。

這是我使用的代碼：

        var cred = new StorageCredentials(accountName, accountKey);
        var account = new CloudStorageAccount(cred, true);
        CloudBlobClient client = account.CreateCloudBlobClient();
        client.DefaultRequestOptions = new BlobRequestOptions()
        {
            SingleBlobUploadThresholdInBytes = 2 * 1024 * 1024
        };
        var container = client.GetContainerReference("myblobcontainer");
        container.CreateIfNotExists();
        var filePath = @"Full File Path";
        var blob = container.GetBlockBlobReference("blob name.exe");
        using (var fs = new FileStream(filePath, FileMode.Open))
        {
            blob.UploadFromStream(fs);
        }

我使用此代碼上傳了大約60MB的文件。