Joseph Doherty 5fea08dda0 feat: complete MQTT session flapper detection (Gap 6.6) ...

Add FlapperState class and per-client exponential backoff tracking to
MqttSessionStore. New TrackConnectDisconnect(string) overload returns
FlapperState with backoff level and expiry; IsFlapper, GetBackoffMs,
ClearFlapperState, and CheckAndClearStableClients give callers full
visibility and cleanup control. Legacy two-arg overload preserved for
backward compatibility. Ten unit tests cover counting, threshold,
exponential growth, 60s cap, window reset, and stable-client sweep.

2026-02-25 11:42:24 -05:00

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