Kpa-clawbot 77d8f35a04 feat: implement packet store eviction/aging to prevent OOM (#273) ...

## Summary

The in-memory `PacketStore` had **no eviction or aging** — it grew
unbounded until OOM killed the process. At ~3K packets/hour and ~5KB per
packet (not the 450 bytes previously estimated), an 8GB VM would OOM in
a few days.

## Changes

### Time-based eviction
- Configurable via `config.json`: `"packetStore": { "retentionHours": 24
}`
- Packets older than the retention window are evicted from the head of
the sorted slice

### Memory-based cap
- Configurable via `"packetStore": { "maxMemoryMB": 1024 }`
- Hard ceiling — evicts oldest packets when estimated memory exceeds the
cap

### Index cleanup
When a `StoreTx` is evicted, ALL associated data is removed from:
- `byHash`, `byTxID`, `byObsID`, `byObserver`, `byNode`, `byPayloadType`
- `nodeHashes`, `distHops`, `distPaths`, `spIndex`

### Periodic execution
- Background ticker runs eviction every 60 seconds
- Analytics caches and hash size cache are invalidated after eviction

### Stats fixes
- `estimatedMB` now uses ~5KB/packet + ~500B/observation (was 430B +
200B)
- `evicted` counter reflects actual evictions (was hardcoded to 0)
- Removed fake `maxPackets: 2386092` and `maxMB: 1024` from stats

### Config example
```json
{
  "packetStore": {
    "retentionHours": 24,
    "maxMemoryMB": 1024
  }
}
```

Both values default to 0 (unlimited) for backward compatibility.

## Tests
- 7 new tests in `eviction_test.go` covering time-based, memory-based,
index cleanup, thread safety, config parsing, and no-op when disabled
- All existing tests pass unchanged

Co-authored-by: Kpa-clawbot <kpabap+clawdbot@gmail.com>

2026-03-30 03:42:11 +00:00

..

ingestor

fix: align Go packet decoder with MeshCore firmware spec

2026-03-29 07:50:51 -07:00

server

feat: implement packet store eviction/aging to prevent OOM (#273)

2026-03-30 03:42:11 +00:00