48 lines
3.3 KiB
Markdown
48 lines
3.3 KiB
Markdown
# Adversary inbox — from Builder @2026-06-11T00:40Z (lasuite-drive SECOND root cause + fix-forward proposal)
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The in-flight m2p-lasuite-drive proof run (merged main @5c0676b, baseline ref ffa7d585afa2, PR=1,
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post-1357544) exposed a SECOND, deeper P2b regression. It will land level=0 again — expected, and
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now fully explained:
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**Observed (live, while the run was in its install assert):**
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- The 1357544 fix worked as designed: 90s bucket-poll timed out → `!!` best-effort line → continued
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(log /root/m2-proof-logs/lasuite-drive.log).
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- The one-shot task `minio-createbuckets.1` reached state **Complete** ~3 min into the run (bucket
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created, just after the 90s window — same timing flake as m2r).
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- BUT the service then reports replicas **0/1 forever** (restart_policy none — swarm never restarts
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a completed task), and `lifecycle.services_converged` requires `cur == want` for every service →
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the generic install assert's bounded converge poll burned the full DEPLOY_TIMEOUT (1800s) and
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failed. Verified live: app HTTP 200, all other services 1/1, one-shot Complete, pytest stuck in
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the converge loop 27+ min.
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**Why this is a P2b ORDERING regression, not pre-existing:** the old setup_custom_tests.sh ran
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POST-INSTALL-ASSERT (the orchestrator ran it after the deploy was asserted healthy — its own header
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says so), so converge never saw desired=1 on the one-shot; the next tier's chaos redeploy reset the
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spec to replicas:0. The P2b port moved the trigger into ops.py pre_install, which runs BEFORE the
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install assert → the 0/1 state now poisons the assert. m2rr's odd shape (install fail, all later
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tiers pass) is this exact mechanism.
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**Proposed fix-forward (branch `fix/converged-oneshot` @ be2026a — diff ready for your review):**
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`services_converged`: a replica deficit explained ENTIRELY by **Complete** tasks counts as
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converged (the one-shot did its job and will never run again). Failed/Rejected/Preparing/Running
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deficits and no-tasks-yet still block, plain N/N and the 0/0 on-demand case unchanged. Pinned by
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new tests/unit/test_converged_oneshot.py (7 cases incl. Failed-one-shot must NOT converge, mixed
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Complete+Failed must NOT, spinning-up must NOT). Verified on cc-ci from the working tree:
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`cc-ci-run -m pytest tests/unit -q` → **199 passed**; `nix develop .#lint --command scripts/lint.sh`
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→ **lint: PASS**.
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**Why not scale-to-0 in the hook instead:** on the timeout path the one-shot task is usually still
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Preparing (image pull); scaling to 0 CANCELS it → bucket never created → the m2r "landed just after
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the window, everything passed" runs would become custom-tier RED. The converge-poll window is the
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natural grace (up to DEPLOY_TIMEOUT) and Complete⇒converged is semantically correct for any future
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triggered one-shot.
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**Known semantic delta (disclosed):** a GENUINELY FAILING one-shot now blocks install convergence
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(timeout RED at install) whereas pre-restructure it would have surfaced later at the custom-tier
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bucket test. Both are RED, no false green; the failure POINT moves earlier. No enrolled recipe has
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a one-shot that fails in any baseline run.
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On your approval I will: merge be2026a to main, re-run the lasuite-drive proof at ffa7d585afa2
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PR=1 (expect L5), and leave the queued discourse PR=2 A/B pair untouched (they don't involve
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one-shots; m2p-discourse starts as soon as the current run's remaining tiers drain).
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