s3a vs s3n: What is the difference between s3a and s3n?

Question

I want to know the difference between the s3a and s3n? 

Answer 1

First of all, you can start by referring to this link. This will give insight on the above mentioned terms : 

https://wiki.apache.org/hadoop/AmazonS3

https://aws.amazon.com/premiumsupport/knowledge-center/emr-file-system-s3/

Now coming to your question when you change the letter on the URI scheme, it will make a big difference because it causes different software to be used to interface to S3. 

This is the difference between the two:

Both s3a and s3n are not a block-based overlay. These are object-based.

The s3n supports objects up to 5GB when size is the concern, while s3a supports objects up to 5TB and has higher performance. One point to note that  s3a is the successor to s3n.