coinos-server.git/lib/lightning.ts, branch regtest-fulcrum

lightning: watchdog only recycles on real backlog, not normal idle

2026-06-07T04:12:17Z

The zombie-listener watchdog (bd1ece38) treated "waitanyinvoice blocked > 5min while cl is alive" as a stall — but that's NORMAL during quiet periods, so it false-fired and needlessly recycled the cl listen socket every few minutes (~26x in 6h on 2026-06-07). Receives still worked, but it was churn + noise and would mask a genuine zombie. Fix: a blocked long-poll is only a zombie if cl actually has a paid invoice the listener isn't picking up. When blocked past the threshold, probe cl on the MAIN socket with waitanyinvoice(pay_index, 2s server-side timeout): if it returns an invoice there's a real backlog the wedged listener missed -> recycle; if it times out (CLN code 904 = nothing waiting) the listener is just idle and healthy -> leave it alone. Only recycle on a confirmed backlog. Co-Authored-By: Claude Opus 4.8 (1M context)

ln/lightning: watchdog recycles zombie receive-listener socket

2026-06-05T01:17:47Z

On 2026-06-04 cl restarted (autoheal, after its 15s healthcheck timed out), and the app's waitanyinvoice long-poll hung on the now-dead listen socket. listenerActive stayed true forever, so ensureListenerAlive never restarted it, and incoming lightning payments stopped crediting for ~2h until a manual app restart. The per-call RPC timeout in ln.ts can't catch this: waitanyinvoice is intentionally in NO_TIMEOUT (it's meant to block). Fix: ensureListenerAlive (runs every 120s) now also detects a stalled listener — active but blocked in waitanyinvoice for >5min. It probes cl via the main ln socket (getinfo); only if cl is actually alive does it treat the listen socket as a zombie, call lnListen.reset() (new: drops the proxy's socket so the next call reconnects), and re-arm. A listenerEpoch guard makes the wedged invocation bow out when its waitanyinvoice finally rejects, so we never run two listeners concurrently and never double-credit. Verified with a state-machine test covering normal receive, quiet-but-healthy (left alone), stall+cl-alive (recycled), stall+cl-down (left alone), and the no-double-listener race. Co-Authored-By: Claude Opus 4.8 (1M context)

lnurl proxy

2026-03-28T06:41:08Z

ensure lightning payments get processed

2026-03-20T06:51:57Z

listener logs

2026-03-18T18:37:33Z

remove logs

2026-03-17T06:53:13Z

health check

2026-02-06T16:55:45Z

sendinvoice support

2025-09-18T21:42:13Z

fix invoice lookup

2025-03-07T22:23:56Z

use getInvoice helper

2025-03-05T23:06:48Z