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Ettore Di Giacinto
c5796d407f
Review of the whole branch found five comments that would send a reader to the wrong place, plus three smaller inaccuracies. Nothing here changes behaviour. The KNOWN RACE note on both backend-log WebSocket handlers said the fix needs an atomic snapshot-plus-subscribe "under the store lock". It does not: BackendLogStore.mu guards only the buffers map, and AppendLine enqueues and fans out under the per-buffer buf.mu. Whoever took the store lock would ship and the race would survive, so both notes now name buf.mu and say what s.mu does and does not exclude. Two comments in the cluster harness quoted Eventually(c.FrontendAlive) .Should(BeFalse()). FrontendAlive takes an index, so Gomega rejects that with "requested 1 arguments but received 0". Both now quote the closure form the specs actually use, and say why the closure is needed. proveHealthCheckingIsAlive claimed to prove the health monitor ran for the whole preceding window. It proves the monitor was alive at the end of it, and inferring backwards needs any wedge to be sticky. In the peer-replica-death spec that inverts: health checks are single-flighted by a session-scoped pg_try_advisory_lock, the spec SIGKILLs the replica that may hold it, and until Postgres reaps the session the survivor acquires nothing and checks nothing silently. Consistently(healthy) can then pass because nothing was checking, with the positive control still succeeding once the lock frees. The doc now states what is proven, names that gap, and says the assertion is a floor rather than a proof. The Makefile still called DISTRIBUTED_TEST_FLAKES a retry count, which is what seeded that error into the two docs just corrected against it, and the workflow called the 15s window a reconcile tick when the mechanism is HealthCheckInterval in the node health monitor. Also: the cluster suite measured 509.1s / 509.8s / 512.3s, so about 8m30s and not the 8m39s/8m40s three files claimed; the dead-worker spec title implied two independent detectors when both probes read one advisory-lock-serialised verdict out of the same row; and the sanitizeDBName length assertion used <= 50, which an empty string also satisfies, where the invariant for an over-long input is exactly 50. Assisted-by: Claude Opus 5 [claude-code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io>