How to upload files to Amazon S3 (official SDK) that are larger than 5 MB (approx)?

Question

I am using the latest version of the official Amazon S3 SDK (1.0.14.1) to create a backup tool. So far everything works correctly if the size of the file I'm uploading is below 5 MB, but when any of the files is above 5 MB the upload fails with the following exception:

System.Net.WebException: The request was aborted: The request was canceled. ---> System.IO.IOException: Cannot close stream until all bytes are written. at System.Net.ConnectStream.CloseInternal(Boolean internalCall, Boolean aborting) --- End of inner exception stack trace --- at Amazon.S3.AmazonS3Client.ProcessRequestError(String actionName, HttpWebRequest request, WebException we, HttpWebResponse errorResponse, String requestAddr, WebHeaderCollection& respHdrs, Type t) at Amazon.S3.AmazonS3Client.Invoke[T](S3Request userRequest) at Amazon.S3.AmazonS3Client.PutObject(PutObjectRequest request) at BackupToolkit.S3Module.UploadFile(String sourceFileName, String destinationFileName) in W:\code\AutoBackupTool\BackupToolkit\S3Module.cs:line 88 at BackupToolkit.S3Module.UploadFiles(String sourceDirectory) in W:\code\AutoBackupTool\BackupToolkit\S3Module.cs:line 108

Note: 5 MB is roughly the boundary of failure, it can be slightly lower or anything higher

I am assuming that the connection is timing out and the stream is being automatically closed before the file upload completes.

I've tried to find a way to set a long timeout (but I can't find the option in either AmazonS3 or AmazonS3Config).

Any ideas on how to increase the time-out (like an application wide setting I can use) or is it unrelated to a timeout issue?

---

Code:

var s3Client = AWSClientFactory.CreateAmazonS3Client(AwsAccessKey, AwsSecretKey);

var putObjectRequest = new PutObjectRequest {

    BucketName            = Bucket,
    FilePath              = sourceFileName,
    Key                   = destinationFileName,
    MD5Digest             = md5Base64,
    GenerateMD5Digest     = true
};

using (var upload = s3Client.PutObject(putObjectRequest)) {  }

Answer 1

I managed to figure out the answer...

Before posting the question I had explored AmazonS3 and AmazonS3Config but not PutObjectRequest.

Inside PutObjectRequest there is a Timeout property (set in milliseconds). I have successfully used this to upload the larger files (note: setting it to 0 doesn't remove the timeout, you need to specify a positive number of miliseconds... I've gone for 1 hour).

This works fine:

var putObjectRequest = new PutObjectRequest {

    BucketName            = Bucket,
    FilePath              = sourceFileName,
    Key                   = destinationFileName,
    MD5Digest             = md5Base64,
    GenerateMD5Digest     = true,
    Timeout               = 3600000
};