Dusan Vojacek b08782525e fix(modbus): zadne vecne pending v journalu + flock timeout + EV poll backoff ...

Zivy incident home-01 (TeltoCharge .16): zapis 15/19-20 koncil failed
s prazdnym error_msg, nebo zustal trvale pending a zablokoval exportni ticky.

- _gateway_exclusive: neblokujici flock s deadline (EMS_MODBUS_FLOCK_TIMEOUT_S,
  default 20 s) -> GatewayLockTimeout misto starvation bez limitu
- execute_modbus_commands: invariant written/failed + neprazdny error_msg
  (str(e) or repr(e)); safety net pres BaseException (CancelledError, chyba DB);
  journal update mimo retry cyklus zarizeni; force_disconnect bez zamku brany
- telemetry poll_ev_chargers: po 3 selhanich backoff 5 min per (host,port,unit)
  - mrtvy unit_id drzi branu 4x8=32 s z kazde minuty
- testy backend/tests/test_modbus_execute_failsafe.py; docs
  modbus-command-journal.md (sekce Robustnost zapisu + konfigurace)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-06-13 00:17:04 +02:00

13 KiB

Raw Blame History

View Raw