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gates / gates (push) Successful in 29s
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS
66 lines
2.8 KiB
Python
66 lines
2.8 KiB
Python
#!/usr/bin/env python3
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"""Part E's schedule — night 2026-09-24. Deterministic: seed 20260924, 12 rounds of action x accident.
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Committed BEFORE round 1 and printed into DRILL-night-2026-09-24.md, so the schedule cannot be chosen after
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the fact. Constraints from the brief: every action at least once; controller killed at most 3 times, at
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least 20 minutes apart (rounds are ~6 min, so kills sit >= 4 rounds apart); a whole-box backup only on 9202.
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python3 chaos_schedule.py # prints the table
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python3 chaos_schedule.py --json # for the runner
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"""
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import json
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import random
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import sys
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SEED = 20260924
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ROUNDS = 12
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ROUND_MIN = 6 # planned length of one round, minutes
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ACTIONS = [
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"ladder_step", # a proven ladder step (Update)
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"failing_step", # a step whose probe fails -> undo
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"cutoff_undo_file_app", # a file app's undo copy cut off -> the second-drive whole restore
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"crash_loop", # a drill image that exits -> the box stops it
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"oom_app", # a tiny mem_limit -> out-of-memory kills
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"install",
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"remove_held", # Remove on a held app
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"start_after_unhealthy",# Start after the box stopped an app
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]
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ACCIDENTS = ["none", "power_cut", "controller_killed", "docker_restart", "disk_to_floor_plus_1g",
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"whole_box_backup"]
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MAX_KILLS, KILL_GAP_MIN = 3, 20
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def schedule(seed=SEED):
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rng = random.Random(seed)
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for _ in range(10000):
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acts = ACTIONS + [rng.choice(ACTIONS) for _ in range(ROUNDS - len(ACTIONS))]
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rng.shuffle(acts)
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accs = [rng.choice(ACCIDENTS) for _ in range(ROUNDS)]
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kills = [i for i, a in enumerate(accs) if a == "controller_killed"]
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if len(kills) > MAX_KILLS:
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continue
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if any((b - a) * ROUND_MIN < KILL_GAP_MIN for a, b in zip(kills, kills[1:])):
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continue
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# Start-after-unhealthy needs an app the box stopped: never before the first crash_loop/oom_app.
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first_stop = min(i for i, a in enumerate(acts) if a in ("crash_loop", "oom_app"))
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if acts.index("start_after_unhealthy") < first_stop:
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continue
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# Remove-on-held needs a held app: after a failing_step or cutoff.
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first_hold = min(i for i, a in enumerate(acts) if a in ("failing_step", "cutoff_undo_file_app"))
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if acts.index("remove_held") < first_hold:
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continue
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return [{"round": i + 1, "action": acts[i], "accident": accs[i]} for i in range(ROUNDS)]
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raise SystemExit("no schedule satisfies the constraints")
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if __name__ == "__main__":
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s = schedule()
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if "--json" in sys.argv:
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print(json.dumps(s, indent=1))
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else:
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print(f"seed {SEED}, {ROUNDS} rounds")
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print("| round | action | accident |\n|---|---|---|")
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for r in s:
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print(f"| {r['round']} | {r['action']} | {r['accident']} |")
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