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Ran 28 Apr 2026 08:04AM UTC

Files 261

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Committed 28 Apr 2026 07:51AM UTC coverage: 86.583% (+0.02%) from 86.561%

Job # 25041077250.1

Build Type

push

github

Committed by

drmingdrmer

Commit Message

test: turmoil: route openraft RNG and spawn through DeterministicRng

Override `AsyncRuntime` in the test's `TypeConfig` so openraft's
internal `thread_rng()` and `spawn` honor the per-host deterministic
seed already set up by `cluster.rs`.

`declare_raft_types!` defaults `AsyncRuntime` to plain `TokioRuntime`,
whose `thread_rng()` is `rand::rng()` (OS-seeded) and whose `spawn`
is `tokio::spawn`. Each host enters `DeterministicRng::scope`, but
plain runtime calls bypass the task-local `DETSIM_SEED` entirely —
election timeouts and child-task seeds came from the OS RNG, so the
cluster diverged across runs even after the prior fuzz-driver
determinism fix.

`DeterministicRng<TokioRuntime>` routes both `thread_rng()` and
`spawn` through the wrapper that consults `DETSIM_SEED`, completing
the determinism story for `--reproduce`.

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