This error happened about 60% of the time during a stress test, and I was able to reproduce it about that often by requesting:
curl 'http:/ores1003.eqiad.wmnet:8081/v3/scores/enwiki/123456?features'
{
"error": {
"code": "internal server error",
"message": "Traceback (most recent call last):\n File \"./ores/wsgi/routes/v3/scores.py\", line 28, in process_score_request\n score_response = scoring_system.score(score_request)\n File \"./ores/scoring_systems/scoring_system.py\", line 42, in score\n response = self._score(request)\n File \"./ores/scoring_systems/celery_queue.py\", line 192, in _score\n return super()._score(*args, **kwargs)\n File \"./ores/scoring_systems/scoring_system.py\", line 104, in _score\n rev_id, model_name, model_score['features'])\nKeyError: 'features'\n"
}
}The code I'm running *does* include a fix for T179509, so that's probably not the issue.
Maybe another error is being masked, and no score was generated?