What does read-after-write consistency really mean on new object PUT in S3?
Amazon documentation (http://docs.aws.amazon.com/AmazonS3/latest/dev/Introduction.html#ConsistencyModel) states:
"Amazon S3 provides read-after-write consistency for PUTS of new objects in your S3 bucket in all regions with one caveat."
Ignoring the caveat, this means that a client issuing a GET following a PUT for a new object is guaranteed to get the correct result. My question is, would the guarantee also apply if the GET is issued from a different client not the one which did the PUT (assuming of course the GET follows the PUT chronologically)? In other words, is read-after-write consistency simply read-your-write consistency or it works for all clients?
I suspect the answer is that it works globally but can't find a definitive answer.
Answer
Yes, it would be consistent.
The concept of a 'client' is irrelevant because each API call is independent.
The us-east-1 region (previously known as US-Standard) previously did not have read-after-write consistency, but it is now provided in all regions.