[RESOLVED] Read 4gb file into FileStream and copy to MemoryStream

[techgnome]

actually... now that I look at the code closer... you're taking the file stream, copying it to a memory stream and then passing the memory stream to the request call... any reason for that? InputStream should be able to accept any IStream ... including a FileStream object... it should then be responsible for buffering and reading the stream directly.

what if you change this:

                        s3Client = New AmazonS3Client(UsrName, Pass, EndPt)
                        'memStream = New MemoryStream(File.ReadAllBytes(FilePath))
                        memStream = New MemoryStream
                        fileStream = New FileStream(FilePath, FileMode.Open, FileAccess.Read)
                        fileStream.CopyTo(memStream)
 
                        Dim rr As New PutObjectRequest() With {.BucketName = BucketPath, .Key = Path.GetFileName(FilePath), .InputStream = memStream}
                        Dim response As PutObjectResponse = s3Client.PutObject(rr)

to this:

                        s3Client = New AmazonS3Client(UsrName, Pass, EndPt)
                        fileStream = New FileStream(FilePath, FileMode.Open, FileAccess.Read)
 
                        Dim rr As New PutObjectRequest() With {.BucketName = BucketPath, .Key = Path.GetFileName(FilePath), .InputStream = fileStream}
                        Dim response As PutObjectResponse = s3Client.PutObject(rr)

-tg