Support multipart for copy transfer

[cyberduck]

ca015dd created the issue

Cannot find anyone else with this problem in my google searches.

issue:
getting this error when trying to transfer an 8.2 GB file from an FTP server to AWS s3.

Your proposed upload exceeds the maximum allowed size. Please contact your web hosting service provider for assistance.

The AMI user making the request has the following bucket policy:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:ListBucket",
                "s3:ListBucketMultipartUploads"
            ],
            "Resource": [
                "arn:aws:s3:::my-bucket-name"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:PutObject",
                "s3:GetObject",
                "s3:DeleteObject",
                "s3:AbortMultipartUpload",
                "s3:ListMultipartUploadParts"
            ],
            "Resource": [
                "arn:aws:s3:::my-bucket-name/*"
            ]
        }
    ]
}

I have already followed the instructions here to enable multipart upload. https://trac.cyberduck.io/wiki/help/en/howto/s3#MultipartUploads

Also I am running 4.8.3 on max OS X Yosemite 10.10.4

Not sure why this is happening, because before I modified my bucket policy to include multipart upload, I was getting an S3 access denied response. Once I changed the policy, the error switched to this. Perhaps it is because I am uploading from ftp -> s3 instead of from my desktop?

[cyberduck]

@dkocher commented

Multipart uploads are enabled by default. Did you accidentally disable support for multipart upload by chance following the directions in the wiki?

[cyberduck]

ca015dd commented

Hey,

thanks for looking into this. The command I executed was:

defaults write ~/Library/Preferences/ch.sudo.cyberduck.plist s3.upload.multipart true

[cyberduck]

@dkocher commented

Currently multipart is not supported when copying files – therefore the failure.

[cyberduck]

ca015dd commented

Okay thank you.

[cyberduck]

@dkocher commented

In 17430cf.