Module
Replicated State Machines and Fault Tolerance Patterns
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About
State machine replication (SMR) via consensus; viewstamped replication intuition; common FT patterns (heartbeats, leases, fencing, idempotent retries, checkpoints, gossip); end-to-end examples (e.g., simple KV store).
Goal
Design a small fault-tolerant replicated service (e.g., KV or lock service) using RSM ideas; identify and mitigate single points of failure; reason about recovery after crashes.
Prerequisites
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Tutor
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