archy/core/archipelago
archipelago a3f07d5ac6 feat(fips): resilience — connectivity watcher with immediate anchor re-apply, rebindable peer listener, cached service probe, warm-path union
Phase A3 of docs/FIPS-UPTIME-AND-UI-STATE-PLAN.md (RC5), measured against
the A2 dial_stats baseline:

- 25s connectivity watcher in the fips supervisor: re-applies seed anchors
  immediately on an anchor-link drop, on startup-disconnected, AND on
  silent data-path death (connect_fails growing with zero fips_ok — the
  live .198 failure where the daemon reported "connected" while every
  dial blackholed and the 300s tick never healed it). Bounded to one
  re-apply per 60s.
- anchors::apply is now concurrent with a 15s per-connect cap — the old
  serial loop waited unbounded on each `sudo fipsctl connect`, so one
  hung subprocess stalled the whole periodic tick.
- rebindable peer listener: the accept loop returns after persistent
  accept errors (was: continue forever = inbound-dead until restart) and
  peer_late_bind_loop rebinds — also on fips0 ULA change.
- is_service_active gets a 10s TTL cache (was up to 2 systemctl spawns
  per dial attempt and per warm-tick peer).
- the warm tick now warms the union of federation peers + configured
  seed anchors (direct anchor links used to go cold between 300s ticks),
  skipping the redundant per-peer service check.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-28 03:57:12 -04:00
..