Hello:
     I am running s3cmd version 1.5.0-alpha3, and I have been
attempting to upload a file that is approximately 155GB in my
test.  Unfortunately, this test with a large file has failed
in all versions of s3cmd that I have tried (Internal 500 error).
Here is a snippet of the debug log of the problem:

   INFO: Sending file 'jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg', please wait...
   DEBUG: get_hostname(rsync1-rsnapshots.booyah.com): rsync1-rsnapshots.booyah.com.s3.amazonaws.com
   DEBUG: ConnMan.get(): re-using connection: https://rsync1-rsnapshots.booyah.com.s3.amazonaws.com#750
   DEBUG: format_uri(): /jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1658&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--
   DEBUG: ConnMan.put(): connection put back to pool (https://rsync1-rsnapshots.booyah.com.s3.amazonaws.com#751)
   DEBUG: Response: {'status': 200, 'headers': {'content-length': '0', 'x-amz-id-2': '/uetFULiHUfpEucJr72ZSdnOFC9X9yI6E/m5c8xnOIYKJt0G1TDaC62p6FqXFq6K', 'server': 'AmazonS3', 'x-amz-request-id': '671AE98C3CE1DB02', 'etag': '"faef045d6d44d4bfd2b5c659d4a56751"', 'date': 'Mon, 24 Jun 2013 22:39:29 GMT'}, 'reason': 'OK', 'data': '', 'size': 15728640}
   DEBUG: MD5 sums: computed=faef045d6d44d4bfd2b5c659d4a56751, received="faef045d6d44d4bfd2b5c659d4a56751"
   DEBUG: Unicodising 'jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg' using UTF-8
   DEBUG: Uploading part 1659 of 'orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--' (15728640 bytes)
   DEBUG: String 'jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg' encoded to 'jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg'
   DEBUG: SignHeaders: 'PUT\n\n\n\nx-amz-date:Mon, 24 Jun 2013 22:39:39 +0000\n/rsync1-rsnapshots.booyah.com/jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1659&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--'
   DEBUG: CreateRequest: resource[uri]=/jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1659&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--
   DEBUG: SignHeaders: 'PUT\n\n\n\nx-amz-date:Mon, 24 Jun 2013 22:39:39 +0000\n/rsync1-rsnapshots.booyah.com/jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1659&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--'
   INFO: Sending file 'jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg', please wait...
   DEBUG: get_hostname(rsync1-rsnapshots.booyah.com): rsync1-rsnapshots.booyah.com.s3.amazonaws.com
   DEBUG: ConnMan.get(): re-using connection: https://rsync1-rsnapshots.booyah.com.s3.amazonaws.com#751
   DEBUG: format_uri(): /jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1659&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--
   DEBUG: ConnMan.put(): connection put back to pool (https://rsync1-rsnapshots.booyah.com.s3.amazonaws.com#752)
   DEBUG: Response: {'status': 200, 'headers': {'content-length': '0', 'x-amz-id-2': 'sawcMYGl3oYDL0ci8hx7tVoMRucHMMTfbeEKTzdO4n/OpzNOLneT9ysd6IS+mgWi', 'server': 'AmazonS3', 'x-amz-request-id': 'FB6855554994D714', 'etag': '"5cf7b636c8d60a657a8b1f0968f08a7e"', 'date': 'Mon, 24 Jun 2013 22:39:41 GMT'}, 'reason': 'OK', 'data': '', 'size': 15728640}
   DEBUG: MD5 sums: computed=5cf7b636c8d60a657a8b1f0968f08a7e, received="5cf7b636c8d60a657a8b1f0968f08a7e"
   DEBUG: Unicodising 'jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg' using UTF-8
   DEBUG: Uploading part 1660 of 'orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--' (15728640 bytes)
   DEBUG: String 'jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg' encoded to 'jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg'
   DEBUG: SignHeaders: 'PUT\n\n\n\nx-amz-date:Mon, 24 Jun 2013 22:39:49 +0000\n/rsync1-rsnapshots.booyah.com/jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1660&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--'
   DEBUG: CreateRequest: resource[uri]=/jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1660&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--
   DEBUG: SignHeaders: 'PUT\n\n\n\nx-amz-date:Mon, 24 Jun 2013 22:39:49 +0000\n/rsync1-rsnapshots.booyah.com/jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1660&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--'

   INFO: Sending file 'jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg', please wait...
   DEBUG: get_hostname(rsync1-rsnapshots.booyah.com): rsync1-rsnapshots.booyah.com.s3.amazonaws.com
   DEBUG: ConnMan.get(): re-using connection: https://rsync1-rsnapshots.booyah.com.s3.amazonaws.com#752
   DEBUG: format_uri(): /jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1660&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--
   DEBUG: ConnMan.put(): connection put back to pool (https://rsync1-rsnapshots.booyah.com.s3.amazonaws.com#753)
   DEBUG: Response: {'status': 500, 'headers': {'x-amz-id-2': 'wK/MCtWIIoXgz8F4LNEooaGwihorCMnKdzZk1HrcbVTEt4fsodX/Lx6aG7vJHeSf', 'server': 'AmazonS3', 'transfer-encoding': 'chunked', 'connection': 'close', 'x-amz-request-id': 'DBC7CC511CBFD997', 'date': 'Mon, 24 Jun 2013 22:41:20 GMT', 'content-type': 'application/xml'}, 'reason': 'Internal Server Error', 'data': '<?xml version="1.0" encoding="UTF-8"?>\n<Error><Code>InternalError</Code><Message>We encountered an internal error. Please try again.</Message><RequestId>DBC7CC511CBFD997</RequestId><HostId>wK/MCtWIIoXgz8F4LNEooaGwihorCMnKdzZk1HrcbVTEt4fsodX/Lx6aG7vJHeSf</HostId></Error>', 'size': 15728640}
   DEBUG: S3Error: 500 (Internal Server Error)
   DEBUG: HttpHeader: x-amz-id-2: wK/MCtWIIoXgz8F4LNEooaGwihorCMnKdzZk1HrcbVTEt4fsodX/Lx6aG7vJHeSf
   DEBUG: HttpHeader: server: AmazonS3
   DEBUG: HttpHeader: transfer-encoding: chunked
   DEBUG: HttpHeader: connection: close
   DEBUG: HttpHeader: x-amz-request-id: DBC7CC511CBFD997
   DEBUG: HttpHeader: etag:
   DEBUG: HttpHeader: date: Mon, 24 Jun 2013 22:41:20 GMT
   DEBUG: HttpHeader: content-type: application/xml
   DEBUG: ErrorXML: Code: 'InternalError'
   DEBUG: ErrorXML: Message: 'We encountered an internal error. Please try again.'
   DEBUG: ErrorXML: RequestId: 'DBC7CC511CBFD997'
   DEBUG: ErrorXML: HostId: 'wK/MCtWIIoXgz8F4LNEooaGwihorCMnKdzZk1HrcbVTEt4fsodX/Lx6aG7vJHeSf'
   DEBUG: DeUnicodising u'500 (InternalError): We encountered an internal error. Please try again.' using UTF-8
   WARNING: Upload failed: /jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1660&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ-- (500 (InternalError): We encountered an internal error. Please try again.)
   WARNING: Waiting 3 sec...
   DEBUG: SignHeaders: 'PUT\n\n\n\nx-amz-date:Mon, 24 Jun 2013 22:41:24 +0000\n/rsync1-rsnapshots.booyah.com/jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1660&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--'

   INFO: Sending file 'jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg', please wait...
   DEBUG: get_hostname(rsync1-rsnapshots.booyah.com): rsync1-rsnapshots.booyah.com.s3.amazonaws.com
   DEBUG: ConnMan.get(): re-using connection: https://rsync1-rsnapshots.booyah.com.s3.amazonaws.com#753
   DEBUG: format_uri(): /jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1660&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--
   DEBUG: ConnMan.put(): connection put back to pool (https://rsync1-rsnapshots.booyah.com.s3.amazonaws.com#754)
   DEBUG: Response: {'status': 200, 'headers': {'content-length': '0', 'x-amz-id-2': 'eYylaZmGaDVNpYBWYHXaEdvZu7IvRr9l2JusPkromdpr5yF5HJEUzWB8kaFUr8L8', 'server': 'AmazonS3', 'x-amz-request-id': 'DBDFD85D1B5D2405', 'etag': '"66c4e56b0eab08c8a87d6f061acbcc1f"', 'date': 'Mon, 24 Jun 2013 22:41:29 GMT'}, 'reason': 'OK', 'data': '', 'size': 15728640}
   DEBUG: MD5 sums: computed=66c4e56b0eab08c8a87d6f061acbcc1f, received="66c4e56b0eab08c8a87d6f061acbcc1f"
   DEBUG: Unicodising 'jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg' using UTF-8
   DEBUG: Uploading part 1661 of 'orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--' (15728640 bytes)
   DEBUG: String 'jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg' encoded to 'jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg'
   DEBUG: SignHeaders: 'PUT\n\n\n\nx-amz-date:Mon, 24 Jun 2013 22:41:33 +0000\n/rsync1-rsnapshots.booyah.com/jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1661&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--'
   DEBUG: CreateRequest: resource[uri]=/jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1661&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--
   DEBUG: SignHeaders: 'PUT\n\n\n\nx-amz-date:Mon, 24 Jun 2013 22:41:33 +0000\n/rsync1-rsnapshots.booyah.com/jira1.booyahcorp.com-weekly-20130511-001357.tar.gz.gpg?partNumber=1661&uploadId=orrprJnrZVXso1zJZrVSdCXmIdA4y2wnCeYCF2x9fGnczhYiTYzjDSsyOzFjf8fQCnV46Q8GhgBBaLy8UYwhEQ--'

Unfortunately, it will never complete a sucessful and clean upload.

Should I do my own manual multipart file upload instead?  What
additional information do you need to help diagnosis this
problem?

Thanks.