data/test/worker_0001_progress.json

{
  "worker_index": 1,
  "worker_count": 32,
  "target_records": 32,
  "written": 32,
  "attempts": 68,
  "records_per_sec": 1.8845448099253026,
  "attempts_per_sec": 4.0046577210912675,
  "updated_at": "2026-05-03T00:06:34.982467"
}