data/test/worker_0004_progress.json

{
  "worker_index": 4,
  "worker_count": 32,
  "target_records": 32,
  "written": 32,
  "attempts": 51,
  "records_per_sec": 2.0186478875993257,
  "attempts_per_sec": 3.2172200708614254,
  "updated_at": "2026-05-03T00:06:33.859292"
}