fix(tradein/proxy): успешный fetch затирал exit_ip и latency_ms в NULL (#3283) (#3305)
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Co-authored-by: lekss361 <lekss361@gendsgn.local> Co-committed-by: lekss361 <lekss361@gendsgn.local>
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2 changed files with 47 additions and 4 deletions
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@ -573,8 +573,20 @@ def mark_health(
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SET consecutive_fails = 0,
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last_ok_at = now(),
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last_check_at = now(),
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exit_ip = CAST(:exit_ip AS text),
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latency_ms = CAST(:latency_ms AS integer),
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-- COALESCE, а не присваивание (#3283): подавляющее
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-- большинство вызовов приходит НЕ из healthcheck'а, а из
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-- _report_fetch_result на КАЖДЫЙ успешный /fetch и из
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-- finally у curl_proxy_url — они зовут mark_health(lease, ok)
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-- БЕЗ exit_ip/latency_ms, и адаптер подставляет None. Голое
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-- присваивание затирало этим None адрес, записанный
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-- proxy_rotation._update_exit_ip минутой раньше, так что
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-- exit_ip в базе жил до первого же успешного запроса
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-- (прод 31.08: у обоих живых узлов NULL при new_ip=
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-- 31.173.86.74 в логе ротации). Явное значение по-прежнему
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-- пишется; очистить поле через mark_health больше нельзя —
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-- для этого есть прямой UPDATE.
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exit_ip = COALESCE(CAST(:exit_ip AS text), exit_ip),
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latency_ms = COALESCE(CAST(:latency_ms AS integer), latency_ms),
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enabled = CASE
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WHEN disabled_reason IS NULL THEN true ELSE enabled
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END,
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@ -266,8 +266,14 @@ class FakeSession:
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row = self._by_id(p["id"])
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if row is not None:
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row["consecutive_fails"] = 0
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row["exit_ip"] = p["exit_ip"]
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row["latency_ms"] = p["latency_ms"]
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# Зеркалит COALESCE(:param, <колонка>) реального SQL (#3283):
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# mark_health(lease, ok) без exit_ip/latency_ms приходит из
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# _report_fetch_result на каждый успешный /fetch, и None не должен
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# затирать адрес, записанный ротацией.
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if p["exit_ip"] is not None:
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row["exit_ip"] = p["exit_ip"]
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if p["latency_ms"] is not None:
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row["latency_ms"] = p["latency_ms"]
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row["last_ok_at"] = datetime.now(UTC)
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row["last_check_at"] = datetime.now(UTC)
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# Ручное выключение (#2610): реальный SQL реанимирует (enabled=true)
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@ -756,6 +762,31 @@ def test_mark_health_ok_resets_and_records() -> None:
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assert row["last_ok_at"] is not None
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def test_mark_health_ok_without_exit_ip_keeps_stored_value() -> None:
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"""#3283: успешный /fetch зовёт mark_health(lease, ok) БЕЗ exit_ip/latency_ms.
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До фикса None затирал адрес, записанный proxy_rotation._update_exit_ip, и
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scrape_proxies.exit_ip жил до первого же успешного запроса (прод 31.08: у обоих
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живых узлов NULL, при том что в логе ротации new_ip=31.173.86.74).
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"""
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db = FakeSession([_proxy(1)])
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mark_health(db, 1, ok=True, exit_ip="31.173.86.74", latency_ms=120) # type: ignore[arg-type]
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mark_health(db, 1, ok=True) # type: ignore[arg-type] # как из _report_fetch_result
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row = db._by_id(1)
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assert row["exit_ip"] == "31.173.86.74"
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assert row["latency_ms"] == 120
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def test_mark_health_ok_with_exit_ip_overwrites_stored_value() -> None:
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"""Явное значение по-прежнему пишется — COALESCE не превращает поле в append-only."""
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db = FakeSession([_proxy(1)])
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mark_health(db, 1, ok=True, exit_ip="1.2.3.4", latency_ms=88) # type: ignore[arg-type]
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mark_health(db, 1, ok=True, exit_ip="5.6.7.8", latency_ms=99) # type: ignore[arg-type]
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row = db._by_id(1)
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assert row["exit_ip"] == "5.6.7.8"
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assert row["latency_ms"] == 99
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def test_mark_health_ok_revives_disabled_proxy() -> None:
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"""Успешная проба реанимирует выключенный узел (#2600 п.1) — enabled=true, fails=0."""
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db = FakeSession([_proxy(1, enabled=False, fails=DISABLE_THRESHOLD)])
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