Files
svc-core/README.md
T
mikkeli 1f678fe87f Add recorder: raw CAN and GNSS sessions with failsafes and a storage bound
Reads SocketCAN and gpsd directly. Sessions start on the first frame or on
'ctl start', end after 15 s of bus idle or on 'ctl stop'; blips under 3 s are
discarded. candump -L chunks fdatasync'd every second and zstd'd once closed;
oldest sessions deleted to stay under 50 GB / above 20 GB free. Kernel and
queue drops, link changes and clock steps are recorded as events.

Bench-tested on vcan with the first car capture (byte-identical) and installed
on the car Orin as yukart-recorder.service.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DDwfd6Ki8UfG4hK6W5YpJz
2026-10-09 20:15:13 +09:00

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1.2 KiB
Markdown

---
type: reference
---
# Core services
Part of **Project Yukart**, making an old 2008 Mitsubishi Z27AG a bit smarter with modern technologies.
This file serves as the minimalist portal to other docs
## What this repo is about
The acquisition and processing cluster on the Orin, developed and deployed as one
unit: `recorder` now; `can-bridge`, `obd-poller`, `gnss` and `decoder` as they are
needed.
| Binary | Installed as | Does |
|---|---|---|
| `recorder` | `yukart-recorder.service` | Raw CAN + GNSS to disk, in sessions, under a storage bound |
```bash
scripts/deploy-recorder.sh # build, glibc check, install on the car Orin
yukart-recorder ctl status # on the Orin
yukart-recorder ctl start "cold start" # manual session, ends only on stop
yukart-recorder ctl mark "indicator left on"
yukart-recorder ctl stop
```
Recordings live in `/var/lib/yukart/recordings/`, one directory per session —
layout in [the initial plan](docs/impl/plans/INITIAL.md#session-layout).
- For implementation practice guidelines, refer to the [guidelines](docs/GUIDELINES.md);
- For implementation plans and history, refer to [them](docs/impl/);