82 lines
3.0 KiB
Python
82 lines
3.0 KiB
Python
#!/usr/bin/env python3
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"""Small dependency-free concurrency gate for the persisted read paths."""
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from __future__ import annotations
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import argparse
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import json
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import math
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import time
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import urllib.error
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import urllib.request
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from concurrent.futures import ThreadPoolExecutor, as_completed
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PATHS = (
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"/api/v1/dashboard",
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"/api/v1/vehicles?page=1&page_size=25",
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"/api/v1/bookings?page=1&page_size=25&sort=operational",
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"/api/v1/data-quality/issues?status=open&page=1&page_size=25",
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"/api/v1/audit?page=1&page_size=25",
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"/api/v1/system/status",
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)
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def request(url: str, cookie: str, timeout: float) -> tuple[float, int]:
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started = time.perf_counter()
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try:
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with urllib.request.urlopen(
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urllib.request.Request(url, headers={"Cookie": cookie}), timeout=timeout
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) as response:
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response.read()
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status = response.status
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except urllib.error.HTTPError as error:
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status = error.code
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return (time.perf_counter() - started) * 1000, status
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def main() -> None:
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parser = argparse.ArgumentParser()
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parser.add_argument("--base-url", default="http://localhost:1228")
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parser.add_argument("--requests", type=int, default=240)
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parser.add_argument("--concurrency", type=int, default=12)
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parser.add_argument("--timeout", type=float, default=5.0)
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parser.add_argument("--max-p95-ms", type=float, default=1500.0)
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args = parser.parse_args()
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if args.requests < 1 or args.concurrency < 1:
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raise SystemExit("requests and concurrency must be positive")
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login = urllib.request.Request(
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f"{args.base_url.rstrip('/')}/api/v1/demo/login",
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data=json.dumps({"role": "operations_manager"}).encode(),
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headers={"Content-Type": "application/json"},
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method="POST",
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)
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with urllib.request.urlopen(login, timeout=args.timeout) as response:
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cookie = response.headers.get("Set-Cookie", "").split(";", 1)[0]
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if not cookie:
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raise SystemExit("demo login returned no session cookie")
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base = args.base_url.rstrip("/")
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work = [f"{base}{PATHS[index % len(PATHS)]}" for index in range(args.requests)]
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results: list[tuple[float, int]] = []
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with ThreadPoolExecutor(max_workers=args.concurrency) as executor:
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futures = [executor.submit(request, url, cookie, args.timeout) for url in work]
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results.extend(future.result() for future in as_completed(futures))
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failures = [status for _, status in results if status != 200]
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durations = sorted(duration for duration, _ in results)
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p95 = durations[max(0, math.ceil(len(durations) * 0.95) - 1)]
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print(
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f"read-only load smoke: requests={len(results)} concurrency={args.concurrency} "
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f"failures={len(failures)} p95_ms={p95:.1f} max_ms={durations[-1]:.1f}"
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)
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if failures:
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raise SystemExit(f"read-only load smoke returned non-200 statuses: {sorted(set(failures))}")
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if p95 > args.max_p95_ms:
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raise SystemExit(f"p95 {p95:.1f} ms exceeds {args.max_p95_ms:.1f} ms")
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if __name__ == "__main__":
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main()
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