A display tried each of its network paths once:
- A registration that failed left it continuing from its persisted
state, behind the offline banner, with no realtime, heartbeat or
retry, until someone reloaded it. This is what the production kiosk
showed after a restart.
- A failed state refresh scheduled no further refresh, so a display
whose realtime was also down never fetched state again.
- A realtime stream the host reported closed was never subscribed
again.
Each path now retries on its own backoff: about 1 s, doubling to a
one-minute ceiling, with jitter so a building's screens do not return
in lockstep. There is no attempt limit, because a television has
nobody to press Retry. Each resets when its request works again.
- Registration retries until it works, then brings the display live
exactly as a first-time success does.
- A failed refresh schedules its own retry, with no realtime needed.
- A closed realtime subscription is replaced.
- Stopping clears every retry.
The recovery test's virtual window shrinks from an hour to five
minutes: eight failures back off for at most about 183 s, and an hour
of offline-continuation timers made the test slow without proving more.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
