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Raf: Raft Without a Separate Term Field

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raf is an experimental Raft variant that does not persist currentTerm as a separate field. Instead, each election reserves a log index, and that index become...

Raft Node Rejoin Bug

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Analyzes a replication session isolation bug in Raft implementations. When a node rejoins the cluster within the same term, delayed AppendEntries responses c...

Raft IO Execution Order (Revised)

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I got it wrong in my previous article. The IO ordering bug in Raft isn’t about the protocol design—it’s about the subtle trap that emerges when implementatio...

Paxos 中 Ballot number 的重用机制

7 分钟阅读

本文探讨 Paxos 协议中 Ballot number 的重用机制,分析何时可重复使用,以及为何只能使用系统中已存在的值而非提议新值