Mastodawn

werner 1d ago

S3 Files and the changing face of S3

https://www.allthingsdistributed.com/2026/04/s3-files-and-the-changing-face-of-s3.html

S3 Files and the changing face of S3

Andy Warfield writes about the hard-won lessons dealing with data friction that lead to S3 Files

All Things Distributed

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gonzalohm 1d ago

I cannot 100% confirm this, but I believe AWS insisted a lot in NOT using S3 as a file system. Why the change now?

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yandie

It appears that they put an actual file system in front of S3 (AWS EFS basically) and then perform transparent syncing. The blog post discusses a lot of caveats (consistency, for example) or object namings (incosistencies are emitted as events to customers).

Having been a fan of S3 for such a long time, I'm really a fan of the design. It's a good compromise and kudos to whoever managed to push through the design.