Dự án Cuttlefish đạt độ trễ ~40ns cho tính nhất quán nhân quả mà không cần consensus. Nếu các thao tác giao hoán, hệ không cần đồng bộ; không lock, không heap, dùng bloom vector clock 512‑bit, SIMD‑friendly Rust. So sánh: etcd/Cockroach mất 1‑50 ms. #DistributedSystems #Cuttlefish #Rust #CRDT #CausalConsistency #KỹThuật #HệThốngPhânTán
https://www.reddit.com/r/programming/comments/1qpysme/40ns_causal_consistency_by_replacing_consensus/
"[A]
#DistributedDatabase provides
#CausalConsistency if read and write operations that are causally related are seen by every node of the distributed system in the same order. Concurrent writes may be seen in [a] different order in different nodes."
https://mariadb.org/causal-consistency/
Causal Consistency - MariaDB.org
Introduction Causal consistency [1] is one of the consistency criteria that can be used on distributed databases as consistency criteria. Distributed database provides causal consistency if read and write operations that are causally related are seen by every node of the distributed system in the same order. … Continue reading "Causal Consistency"
MariaDB.org