satoshi
99302cf4af
Submit-first ordering. Patch 0004 now calls generator_submitblock
BEFORE writing the pending-block hex to disk. The happy path adds zero
disk I/O — we only dump when the primary returned false. The same
patch bounds generator_submitblock's "no live current_si" spin to
~3s instead of the original infinite loop, so a permanently-down
primary doesn't pin the stratifier; the bounded spin lets the caller
return false and lets local_block_submit dump for kamado-api to take
over.
Default grace lowered from 30s to 3s. With ckpool's bounded spin and
sub-second sweep cadence, the fallback now reacts within ~4s of a
failed primary submit — fast enough that the work is still relevant
for the current chain tip. The submitter's sweep poll dropped to 1s
to match.
UI HealthBanners. New top-of-page strip surfaces:
* Fallback used (red banner, 24h after most recent event):
"primary bitcoind didn't accept; backup X took over Y ago"
* Submit gap (orange banner, only when no recent fallback):
"N blocks attempted but unconfirmed — configure backups"
* ZMQ stale (orange banner): no hashblock frame in 30+ minutes
Operators see degraded-but-not-fatal states without checking logs.
Startup readiness gate. main now waits up to 8s on agg.Ready() before
starting the HTTP server so the very first /api/snapshot doesn't show
all-zero state during the aggregator's first refresh. Capped so a
permanently-down bitcoind can't block startup; /healthz is honest
about the degraded state once we do start serving.
Kamado Pool
A modern, feature-complete solo Bitcoin mining pool built on a patched fork of CKPool, with a real-time web dashboard and a Go-based API middleware that surfaces everything CKPool knows.
Why Kamado?
Existing CKPool-based solutions (like Bassin for Umbrel) read only a handful of periodic stats files and miss most of CKPool's rich data. Kamado talks directly to CKPool's Unix socket API to expose:
- Real-time per-client data: hashrate, difficulty, user agent, hardware detection
- Full block-found history with height, hash, reward, and solving worker
- Per-worker and per-client best share tracking (current + all-time)
- Network difficulty, pool efficiency, expected time to block
- Live dashboard updates via WebSocket (no 60-second file polls)
Architecture
┌────────────────────────────────────────────────────┐
│ ckpool-solo (C) ──Unix socket──► kamado-api (Go) │
│ ports: 3333 ports: 80 │
│ │
│ ▲ stratum ▲ HTTP/WS │
│ │ │ │
│ Miners Browser │
│ │
│ bitcoind ◄──── RPC + ZMQ ────── ckpool + kamado-api│
└────────────────────────────────────────────────────┘
Three main components:
| Component | Language | Purpose |
|---|---|---|
ckpool/ |
C | Stratum server, share validation, block submission |
api/ |
Go | Socket client, REST/WebSocket API, persistence |
ui/ |
Svelte | Real-time dashboard |
Phases
- Phase 1 — Fork & fix CKPool, build infrastructure
- [~] Phase 2 — Go API middleware
- Phase 2a: CKPool socket client, bitcoind RPC, state aggregator, REST API
- Phase 2b: CKPool log tailer, block history, stdlib WebSocket push
- Phase 2b.5: ZMQ block notifier, SQLite persistence (deferred until s9pk repo exists — need real Go build env for new deps)
- ckpool patch 0001: expose
besteverin runtime socket JSON so the UI can show "this round" and "all-time" best share side by side - [~] Phase 3 — Svelte UI dashboard (skeleton: header, pool overview, miners table, blocks, best shares leaderboard; live WS updates)
- Phase 4 — Monorepo Docker build:
kamado-apiembedsui/distvia//go:embedand serves it at/. The api Dockerfile has a node stage that builds the UI before the Go stage embeds and builds the binary; docker-compose uses the repo root as build context so bothapi/andui/are visible. - Phase 5 — Testing (regtest, testnet4), polish
Quick start (dev)
cp .env.example .env # set POOL_BTCADDRESS and bitcoind creds
make up # build + start ckpool + api
curl localhost:8080/api/health
curl localhost:8080/api/pool
REST endpoints:
| Route | Returns |
|---|---|
GET /api/health |
CKPool + bitcoind health |
GET /api/pool |
Pool stats + derived hashrate windows + chain info |
GET /api/users |
All users from users socket command |
GET /api/workers |
All workers from workers socket command |
GET /api/clients |
All connected stratum sessions (useragent, IP, diff) |
GET /api/blocks |
Recent solved blocks (in-memory ring, SQLite in Phase 2b.5) |
GET /api/snapshot |
Full merged snapshot (everything) |
GET /api/ws |
WebSocket push: full snapshot on every refresh + on solve |
StartOS packaging lives in a separate repository.
Upstream
CKPool by Con Kolivas: https://bitbucket.org/ckolivas/ckpool
Pinned commit: see ckpool/CKPOOL_COMMIT
License
GPL-3.0. CKPool itself is distributed under GPL-3.