wpf - Uploading Large Amounts of Data from C# Windows Service to Azure Blobs

Question

Can someone please point me in the right direction.

1. I need to create a windows timer service that will upload files in the local file system to Azure blobs.
2. Each file (video) may be anywhere between 2GB and 16GB. Is there a limit on the size? Do I need to split the file?
3. Because the files are very large can I throttle the upload speed to azure?
4. Is it possible in another application (WPF) to see the progress of the uploaded file? i.e. a progress bar and how much data has been transferred and what speed it is transferring at?

Answer 1

块 blob 的上限，即您想要的类型，是 200GB。用于 VHD 的页面 blob 可以达到 1TB。

之所以称为块 blob，是因为上传是一个两步过程 - 上传一组块，然后提交该块列表。客户端 API 可以隐藏一些这种复杂性。由于您想控制上传并跟踪其状态，您应该查看以块为单位上传文件 - 最大大小为 4MB - 并根据需要管理该流程和成功。在上传结束时，您提交阻止列表。

Kevin Williamson 写了许多精彩的博客文章，他有一篇文章展示了如何进行“带有进度更改通知 2.0 的异步并行 Blob 传输”。