vvzvlad
3c9ce72b51
Docker Image CI / build (push) Waiting to run
Media downloads jammed process-wide: Kurigram serializes them through a single get_file slot (max_concurrent_transmissions=1), and a zombie media-DC connection (upload.GetFile timing out) held that slot forever. The main-DC watchdog (get_me) never noticed, and the 60s cache sweep kept re-queuing the failing file, so all feed images turned into broken placeholders. - telegram_client: count consecutive download timeouts; after N (default 5) reuse _restart_client() to rebuild the media connection — the only recovery signal the main-DC watchdog cannot provide. Any success resets the streak. - telegram_client/config: set max_concurrent_transmissions (default 3) so one hung download is no longer an instant total outage (blast-radius limiter only). - api_server: negative-cache with exponential backoff for repeatedly-failing files (skip in background sweep, fast 503+Retry-After in get_media, record/clear in the dedup runner and background worker; FloodWait excluded). - dockercompose/tests: document TG_MAX_CONCURRENT_TRANSMISSIONS and MEDIA_TIMEOUT_RESTART_THRESHOLD; update mock config; add self-heal/backoff tests. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>