Local API stress (lib.mjs / api_stress.mjs):
- setupSession now does login -> /admin/api/reset and returns sid="main".
Drops the dead /admin/api/quizzes + /admin/api/sessions calls left over
from the multi-quiz codex era.
- bootServer writes the fixture pool (STRESS_POOL by default) to a tmp
file and passes QUIZ_POOL_PATH so the v1.2 server has a session at
startup.
- happyPath: drop the post-connect lobby_update wait (race with snapshot
dispatch) and stop double-driving the lifecycle (next() already opens
the next question, an explicit open() afterwards is a no-op).
- cross_session: rewritten as "cookie not honored on a non-existent sid"
since v1.2 hosts a single canonical session.
Live accuracy stress (live_accuracy.mjs):
- Per-student lobby-snapshot timeout (12s) with WS error/close rejection,
so a stalled handshake no longer hangs Promise.all until the outer
shell timeout (which produced the exit=124 cycles).
- Open all student WSs in parallel (mirrors what real students do); the
batch-of-8 throttle was masking the question we wanted answered.
- Instructor WS open also bounded by a 15s race so any failure surfaces
as actionable error text instead of a silent stall.
Bootstrap (deploy/bootstrap.sh):
- Stage 1 provisions a 2GB swap file (idempotent) with vm.swappiness=10.
1GB-RAM ECS instances OOM-kill uvicorn under WS-burst start-of-class
pressure; swap absorbs the spike without affecting steady state.
- Pool seeding prefers examples/demo10_pool.json over the 2-question
example so a fresh deploy boots with a usable demo.
Pool fixture (examples/demo10_pool.json):
- 10-question generic-knowledge demo pool, gitignore exception added.
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