MIT 6.5840 Lab 2: Key/value server with at-most-once Puts and a lock

Versioned conditional writes over a lossy network: decide what a retransmitted write may report when its outcome is unknown, then build a lock on top.

The exercise happens on MIT 6.5840. Canonical link: https://pdos.csail.mit.edu/6.5840/labs/lab-kvsrv1.html. Link check: link responded (5 Oct 2026). Opened from this app 0 times; opening is not counted as an attempt.

Supports: Ambiguous outcomes, duplicate suppression and conditional-write locks before the Raft labs; the lab page is year-specific.