HamAlert connection times out every ~2 minutes #152
Description
Description
The HamAlert telnet feed connection is timing out approximately every 2 minutes, causing a reconnect cycle. The connection succeeds and authenticates each time, but drops again ~2 minutes later.
Observed pattern
- Connect and authenticate successfully
- ~2 minutes later:
TimeoutError - 10 second pause, then reconnect
- Repeats indefinitely
Sample logs (2026-04-05)
19:45:35 UTC WARNING: rigbook.spots: HamAlertFeed connection error: TimeoutError
19:45:45 UTC INFO: rigbook.spots: HamAlert: connecting to hamalert.org:7300
19:45:48 UTC INFO: rigbook.spots: HamAlert: connected and authenticated as wa7pge
19:47:49 UTC WARNING: rigbook.spots: HamAlertFeed connection error: TimeoutError
19:47:59 UTC INFO: rigbook.spots: HamAlert: connecting to hamalert.org:7300
19:48:02 UTC INFO: rigbook.spots: HamAlert: connected and authenticated as wa7pge
...
This repeats consistently with ~2 minute intervals between connect and timeout.
Possible causes
- Read timeout too short for idle periods (server may not send data for extended periods)
- Missing keepalive/ping mechanism to keep the connection alive
- Server-side idle disconnect not being handled gracefully