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archipelago 0d0e2e243a
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feat(lnd): channel-peer watchdog — a dropped peer link heals itself
LND normally reconnects channel peers after a restart, but not reliably:
after long or repeated downtime (an app update, a node reboot,
reconciler churn) the peer link can stay down for hours while BOTH
endpoints keep the channel flagged disabled in the routing graph. The
node looks perfectly healthy, the wallet shows balance, and every
payment in either direction fails "no route to the recipient" —
observed live on framework-pt (2026-09-01): its only channel sat
disabled on both policy sides for ~17 hours after the LND 0.21.2
update, while shorty had 583k spendable and the user was told, by a
mis-mapped modal, that they had 'no payment channel'.

The channel graph is desired state — every open channel should have a
live peer connection. A daemon-side watchdog now enforces it:

- every 2 minutes, list channels + peers over LND REST
- for each channel whose remote peer is not connected, look the peer's
  advertised addresses up in the public graph and dial one
- per-peer retries throttled to 10 minutes so an unreachable peer is
  not hammered; 'already connected' counts as done; a peer with no
  advertised address is logged once per pass (cannot be dialed)
- no-ops quietly on nodes without LND (missing macaroon) and while a
  wallet is locked (503 body has no channels)

Unit tests pin the selection against the live REST shapes
(remote_pubkey in /v1/channels vs pub_key in /v1/peers).

v1.8.10 CHANGELOG + What's New entries staged so the next release run
is clean first time.
2026-09-01 17:51:15 -04:00
..

Archipelago documentation

Start here. This index groups the docs by what you're trying to do. The authoritative behaviour is always the code in core/; where a doc and the code disagree, the code wins and the doc is a bug.

Getting started

Architecture

Contributing to Archipelago itself

App development

Design docs

These record why a thing is built the way it is. They are design records, not step-by-step guides, and some predate the current implementation.

Decisions (ADRs)

There is no ADR-010 — the number was never issued, so the gap is not a missing file.

Security

Roadmap & history

  • Roadmap — where the project is going
  • TODO — working backlog of unscoped forward-looking items
  • archive/ — superseded design and status documents, kept for provenance