Files
meshexplorer/ingest
Alex Vanderpot 02623e5559 neighbors: seattle->letsmesh region + fix path-edge prefix extraction
- Point the seattle region at the letsmesh broker (wss://mqtt-us-v1.letsmesh.net:443,
  topic meshcore/SEA) where Seattle traffic now lives.
- Fix a pre-existing bug in the path-edge extraction: `path` is a hex string of
  1-byte hop prefixes, so use substring(path, 2*i-1, 2) instead of
  hex(substring(path, i, 1)) (which re-hexed a single hex char and never matched
  the 2-char repeater prefixes -> path edges were always empty). Seattle now yields
  path edges again.

Verified on a full prod snapshot: the MV-backed "show all neighbors" query drops
from ~1.6s / 145M rows / 11.8 GiB to ~1ms / 108 rows / 3.8 KiB.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-05-29 03:02:09 -04:00
..
2026-05-29 01:01:33 -04:00

MeshCore Ingest

A Go service that ingests MeshCore MQTT messages into ClickHouse, plus the ClickHouse image and SQL migrations for the schema.

This directory is normally run as part of the full stack via the root docker compose. The notes below cover running and developing it on its own.

Components

  • cmd/meshcoreingest — the ingest daemon. Subscribes to MeshCore MQTT topics and writes raw packets into the meshcore_packets table.
  • internal/ingestcommon — shared MQTT + ClickHouse connection/daemon logic.
  • internal/migrate — a goose based migration runner (ClickHouse dialect).
  • migrations/ — the ClickHouse schema: the meshcore_packets table, the decoded meshcore_adverts / meshcore_adverts_latest / meshcore_public_channel_messages views, and the unified_latest_nodeinfo view consumed by the web app.
  • clickhouse/ — a thin ClickHouse server image plus the read-only user used by the web app.

Configuration

All configuration is via environment variables (no credentials are baked into the source):

Variable Description
MQTT_BROKERS JSON array of brokers: [{"url","username","password","topics"}]. topics defaults to ["meshcore/#"]. Required; the daemon exits if unset.
MQTT_CLIENT_ID MQTT client id prefix (default meshcore-ingest).
CLICKHOUSE_HOST / CLICKHOUSE_PORT ClickHouse address (native protocol, default 127.0.0.1:9000).
CLICKHOUSE_DB / CLICKHOUSE_USER / CLICKHOUSE_PASSWORD ClickHouse database and read/write credentials.

Building

go build ./...
go test ./...

Running migrations

go run ./internal/migrate \
  -host localhost -port 9000 \
  -username default -password "$CLICKHOUSE_PASSWORD" \
  -path migrations -action up

Actions: up, down, reset, status, version.

Running the ingest daemon

export MQTT_BROKERS='[{"url":"tcp://mqtt.example.com:1883","username":"u","password":"p","topics":["meshcore/#"]}]'
export CLICKHOUSE_HOST=localhost CLICKHOUSE_PORT=9000 CLICKHOUSE_PASSWORD=...
go run ./cmd/meshcoreingest