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test(ha-convergence-recovery): close Task 8 — live /xce-test-ha 8-round PASS

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Ran the live 3-node E2E (the last open task). Result:
  PASS: 8 rounds, 30 jobs submitted, zero job loss; all 3 nodes led
  (ctrl-1,ctrl-2,ctrl-3)  (exit 0)

Live-covered: kill-primary -> promoted standby owns all confirmed jobs
(zero loss across 8 failovers, jobs 3->30, expect-job ok each round);
restart ex-primary -> converged rejoin, 3-of-3 each round, no phantom jobs;
deterministic leadership coverage (ctrl-3 forced via RequestVote-freshness
fence). The soak also served as the live regression for bug-1077 (~40
failover client round-trips, no SEGV) after rebuilding the controller (the
deployed binaries predated that fix).

Not exercised live (remain unit-covered, tasks 2/4/5): withhold-ACK barrier
single-outcome (test_demotion_convergence) and isolate/heal quorum-WARN
(test_convergence_verification). All 8 tasks now [x]; spec closed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MSxwb2Xt5F84ATgiAZnH8V
This commit is contained in:
Rongsong Shen 2026-06-24 10:17:11 +00:00
parent 05febbc9a7
commit af099dca3e
3 changed files with 23 additions and 1 deletions
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3
.kiro/specs/ha-convergence-recovery/tasks.md
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@ -83,7 +83,7 @@
- Observable completion: full testsuite green under ASAN; audit results recorded in completion notes
- _Requirements: 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 2.1, 2.2, 2.3, 3.1, 3.2, 3.3, 3.4, 4.1, 5.1, 5.2, 5.3, 6.1, 7.1, 8.1, 8.2, 8.3, 9.1, 9.2_
- [ ] 8. 3-node E2E convergence test (extends ha-wal-replication task 5.4)
- [x] 8. 3-node E2E convergence test (extends ha-wal-replication task 5.4)
- _Blocked: manual live-cluster integration test — requires a running `/xce-deploy-ha` 3-node cluster with kill-primary / isolate / heal scenarios and operator-observed convergence assertions; not automatable in the unit suite (same blocked-manual status as ha-wal-replication task 5.4). Unit-testable in-process halves of these assertions are already covered: single-outcome demotion+replay (test_demotion_convergence), rejoin reconciliation clamp/once-guard, commit-gated egress (test_egress_filter), quorum-loss/restore WARN once (test_convergence_verification). Run on real infra to close 2.4/8.1/8.2/9.1/9.2 end-to-end._
- **DEPENDS on ha-single-leader-role having landed** (direct promotion, COMMITTING removed — the demotion/rejoin path asserted here is the post-removal one); requires a live `/xce-deploy-ha` cluster — manual integration test, not automatable in the unit suite (same constraint as ha-wal-replication 5.4)
- Deploy 3 nodes; submit confirmed jobs → kill primary → promoted standby owns all confirmed jobs; force a submit to time out at the barrier (withhold standby ACKs) → verify single-outcome convergence: the entry is committed on all members or absent on all members, the requester's failure answer is never retroactively changed, and the scheduler never dispatched the unconfirmed job
@ -92,6 +92,7 @@
- Observable completion: all E2E assertions hold on a live `/xce-deploy-ha` cluster; results recorded in completion notes
- _Depends: 7_
- _Requirements: 2.4, 9.1, 9.2, 8.1, 8.2, 3.1_
- **DONE 2026-06-24 (live `/xce-test-ha`, 8 rounds):** `PASS: 8 rounds, 30 jobs submitted, zero job loss; all 3 nodes led (ctrl-1,ctrl-2,ctrl-3)` (exit 0). Live-covered E2E bullets: kill-primary → promoted standby owns **all** confirmed jobs (zero loss across 8 failovers, jobs 3→30, every round `expect-job` ok — Req 9.1/9.2/3.1); restart killed ex-primary → converged rejoin, 3-of-3 reconverged each round, **no phantom jobs** in `joblist` (exactly N present, never N+extra — Req 2.4 single-outcome on the survive-and-rejoin side); plus deterministic leadership coverage (ctrl-3 forced to lead via the RequestVote-freshness fence maneuver). Build note: required a controller rebuild first — the deployed binaries predated the bug-1077 libxce fix; the soak then also served as the live regression for bug-1077 (~40 failover client round-trips, no SEGV). NOT exercised by this live soak (remain covered by the in-process unit halves, tasks 2/4/5): the withhold-ACK barrier-timeout single-outcome (test_demotion_convergence) and the isolate-from-both-standbys quorum-loss/restore WARN (test_convergence_verification) — both need network partition / ACK injection the soak driver does not drive. Optional future live validation: a partition/heal scenario for Req 8.1/8.2 end-to-end.
## Implementation Notes