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

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  1. POHow to upload files to Amazon S3 (official SDK) that are larger than 5 MB (approx)?
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    <p>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:</p> <blockquote> <p>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&amp; 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</p> </blockquote> <p><strong>Note</strong>: 5 MB is roughly the boundary of failure, it can be slightly lower or anything higher</p> <p>I am assuming that the connection is timing out and the stream is being automatically closed before the file upload completes. </p> <p>I've tried to find a way to set a long timeout (but I can't find the option in either <code>AmazonS3</code> or <code>AmazonS3Config</code>). </p> <p>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?</p> <hr> <p><em>Code:</em></p> <pre><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)) { } </code></pre>
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