Header toggle in Proxy Fitness persists settings.poolGeoProbeEnabled
(default on); the probe scheduler reads it each pass and skips when off.
The env POOL_GEO_PROBE_DISABLED remains a hard override. Smart rotation is
unaffected — it runs off the fitness registry from real request failures.
Refuse re-probing failures too fast: 500/429 failures get a 2h backoff,
other errors 30m (flapping relays/quota stops hammering ipinfo every pass,
passes every 30 min instead of 15). One-line summary per pass
(geo N/M · fail: rate×a server×b) replaces the per-pool error wall.
New env POOL_GEO_PROBE_DISABLED=1 turns the feature off.
Background probe fetches ipinfo through each pool itself (provider-agnostic
transport), fills an egress IP/country cache (TTL 1h, 8-IP history) and flags
flapping relays as unstable. Periodic state sweeper (10 min) prunes expired
fitness marks, stale geo/ip-history and Freebuff session/cooldown state;
schedulers skip non-server runtimes. Unit tests for the geo cache.
MUH. IQRAM BAHRING