data/test/worker_0004_progress.json

{
  "worker_index": 4,
  "worker_count": 32,
  "target_records": 7,
  "written": 7,
  "attempts": 8,
  "records_per_sec": 2.5823281046401227,
  "attempts_per_sec": 2.9512321195887115,
  "updated_at": "2026-04-29T05:45:57.708195"
}