I am designing an application which will support upload and download of XML file with limit of 2 GBs. I am using Azure Blob Storage as persistent storage to upload these files and then download them. Below piece of code throws OutOfMemory exception:
var blob = this.GetBlockBlobReference(blobId, blobContainerName);
return await blob.DownloadTextAsync().ConfigureAwait(false);
Also, I am not sure which approach will be faster and cleaner.
For faster downloading / uploading blobs, you can consider using Microsoft Azure Storage Data Movement Library . This library is designed for high-performance uploading, downloading and copying Azure Storage Blob and File.
You can set parallel threads via code below:
// Setup the number of the concurrent operations
TransferManager.Configurations.ParallelOperations = 64;
Then use TransferManager.UploadAsync
or TransferManager.DownloadAsync
method for uploading / downloading blobs respectively.
There is an example in github of uploading, you can modify it for downloading easily.
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