Object store vs NFS consistency models
WHAT IT TESTS: distributed consistency depth. OUTLINE: S3 gives strong read-after-write per object with no partial updates; NFS offers close-to-open with shared mutable files.
WHAT IT TESTS: whether you understand the consistency semantics each storage type actually guarantees. ANSWER OUTLINE: modern object stores give strong read-after-write consistency per whole object, but objects are immutable units with no partial in-place updates and no locking. NFS provides close-to-open consistency and a mutable shared file model where concurrent writers can interleave bytes. RED FLAG: assuming object storage supports safe concurrent in-place edits or locking like a POSIX file system, leading to lost updates.
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- #consistency
- #object-storage
- #nfs
- #distributed-systems
- #concurrency
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