Difference between s3n, s3a and s3?

+2 votes
I am more concerned about the technical differences:

Can someone brief me on letter change as well?
Apr 9, 2018 in AWS by hemant
• 5,750 points
5,538 views

10 answers to this question.

+1 vote
Start by referring this link. This will give insight on above mentioned terms : https://wiki.apache.org/hadoop/AmazonS3

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

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 three:

 s3 is a block-based overlay on top of Amazon S3,whereas  s3n/s3a are not. These are are object-based.

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

I hope this helps
answered Apr 9, 2018 by brat_1
• 7,080 points
+1 vote

- s3n is for use with files that are natively stored in S3 as individual S3 objects
- s3 is for use for accessing files that are stored within HDFS blocks and those blocks themselves are stored or backed in S3

answered Oct 25, 2018 by pranav
+1 vote

S3 Native FileSystem (URI scheme: s3n) A native filesystem for reading and writing regular files on S3. The advantage of this filesystem is that you can access files on S3 that were written with other tools. Conversely, other tools can access files written using Hadoop. The disadvantage is the 5GB limit on file size imposed by S3.

S3A (URI scheme: s3a) A successor to the S3 Native, s3n fs, the S3a: system uses Amazon's libraries to interact with S3. This allows S3a to support larger files (no more 5GB limit), higher performance operations and more. The filesystem is intended to be a replacement for/successor to S3 Native: all objects accessible from s3n:// URLs should also be accessible from s3a simply by replacing the URL schema.

S3 Block FileSystem (URI scheme: s3) A block-based filesystem backed by S3. Files are stored as blocks, just like they are in HDFS. This permits efficient implementation of renames. This filesystem requires you to dedicate a bucket for the filesystem - you should not use an existing bucket containing files, or write other files to the same bucket. The files stored by this filesystem can be larger than 5GB, but they are not interoperable with other S3 tools.

answered Oct 25, 2018 by Rishab rohan
0 votes

S3N and S3A are both connectors to S3, with S3A the successor built using Amazon's own AWS SDK.

answered Dec 10, 2018 by Nabarupa
0 votes

If you are using Hadoop 2.7 or later, use s3a. 

If you are using Hadoop 2.5 or earlier use s3n.

They are both just tools to connect to S3.

answered Dec 10, 2018 by SHuvodip
0 votes

S3n is a native filesystem for reading and writing regular files on S3. and S3a is just the successor of S3n

answered Dec 10, 2018 by trish
0 votes
You can read the brief about it in the below documentation from amazon

https://docs.aws.amazon.com/emr/latest/ManagementGuide/emr-plan-file-systems.html
answered Dec 10, 2018 by Abhinav
0 votes

s3n is for use with files that are natively stored in S3 as individual S3 objects and s3a is a successor of s3n
s3 is for use for accessing files that are stored within HDFS block.

answered Dec 10, 2018 by Amit
0 votes

A native filesystem for reading and writing regular files on S3. S3N allows Hadoop to access files on S3 that were written with other tools, and conversely, other tools can access files written to S3N using Hadoop. S3N is stable and widely used, but it is not being updated with any new features. S3N requires a suitable version of the jets3t JAR on the classpath.

S3A is the successor of S3N.

answered Dec 10, 2018 by Sukesh
0 votes
In laymans terms in hadoop

Apache Hadoop implementation of block based file system backed by S3, which is a storage service by AWS.

S3N is a native file system for reading files from S3.

S3A is the upper version of S3N.
answered Dec 10, 2018 by Deep

Related Questions In AWS

0 votes
1 answer

What is the difference between Amazon Cloudfront and S3

major difference is that cloudfront allows you ...READ MORE

answered Jul 9, 2018 in AWS by Priyaj
• 56,200 points
125 views
0 votes
1 answer

Difference between AWS S3 and Amazon Storage Gateway

Basically AWS S3 is a file system. It ...READ MORE

answered Aug 4, 2018 in AWS by Archana
• 4,090 points
125 views
0 votes
1 answer
0 votes
1 answer
0 votes
1 answer

AWS S3 uploading hidden files by default

versioning is enabled in your bucket. docs.aws.amazon.com/AmazonS3/latest/user-guide/….... the ...READ MORE

answered Oct 4, 2018 in AWS by Priyaj
• 56,200 points
189 views
0 votes
1 answer

How to decrypt the encrypted S3 file using aws-encryption-cli --decrypt

Use command : aws s3 presign s3://mybucket/abc_count.png you get ...READ MORE

answered Oct 22, 2018 in AWS by Priyaj
• 56,200 points
344 views
0 votes
1 answer

Import my AWS credentials using python script

Using AWS Cli  Configure your IAM user then ...READ MORE

answered Nov 16, 2018 in AWS by Jino
• 5,560 points
243 views
0 votes
2 answers
+4 votes
5 answers

Usage of Amazon Cloudfront or S3

When to use S3? S3 is like many ...READ MORE

answered Apr 3, 2018 in AWS by brat_1
• 7,080 points
98 views
+1 vote
4 answers

Can a URL be directly uploaded to S3 using POST?

You can read this blog and get ...READ MORE

answered Oct 25, 2018 in AWS by chamunda
48 views