Competitions Issue - Hugging Face Hub is unreachable, please try again later

ktrapeznikov · April 5, 2025, 6:00pm

I am running several competitions using huggingface competitions GitHub - huggingface/competitions
SAFEChallengePractice - a Hugging Face Space by safe-challenge .

Once in awhile when testing, I get “Hugging Face Hub is unreachable, please try again later” error when submitting a new submission. It usually resolves itself after while. I suspect that maybe I am being rate limited somewhere. I have not figured it out. Any thoughts?

ktrapeznikov · April 5, 2025, 6:03pm

related issues:

John6666 · April 6, 2025, 12:43am

There seem to be several places where this message appears, but basically it seems to appear when the server does not respond within 3 seconds, or when the server is truly unreachable.

It’s hard to imagine that the connection from the Spaces of Hugging Face to the Hugging Face server would become truly unreachable (although it’s certainly possible if there are restrictions, etc.), so I wonder if it’s really a timeout…?

It rarely crashes, but there are times when the server is in bad shape.

github.com/huggingface/competitions

competitions/utils.py

main


      
              cookies = {"token": token}
          try:
              response = requests.get(
                  _api_url,
                  headers=headers,
                  cookies=cookies,
                  timeout=3,
              )
          except (requests.Timeout, ConnectionError) as err:
              logger.error(f"Failed to request whoami-v2 - {repr(err)}")
              raise Exception("Hugging Face Hub is unreachable, please try again later.")
          
          if response.status_code != 200:
              logger.error(f"Failed to request whoami-v2 - {response.status_code}")
              raise Exception("Invalid token.")
          
          resp = response.json()
          user_info = {}
          
          if token.startswith("hf_oauth"):
              user_info["id"] = resp["sub"]

ktrapeznikov · April 7, 2025, 2:38pm

3 seconds is not long. I have been thinking of forking the competition codebase and doing some updates. It does not seem like its actively supported anymore but I do like it.

ktrapeznikov · April 10, 2025, 11:29pm

So looking more into this. So the error is returned by the web app If RequestException is raised

github.com/huggingface/competitions

competitions/app.py

447fff164


      
              hardware=competition_info.hardware,
          )
          try:
              if competition_info.competition_type == "generic":
                  resp = sub.new_submission(user_token, submission_file, submission_comment)
                  return {"response": f"Success! You have {resp} submissions remaining today."}
              if competition_info.competition_type == "script":
                  resp = sub.new_submission(user_token, hub_model, submission_comment)
                  return {"response": f"Success! You have {resp} submissions remaining today."}
          except RequestException:
              return {"response": "Hugging Face Hub is unreachable, please try again later"}
          except AuthenticationError:
              return {"response": "Invalid token"}
          except PastDeadlineError:
              return {"response": "Competition has ended"}
          except SubmissionError:
              return {"response": "Invalid submission file"}
          except SubmissionLimitError:
              return {"response": "Submission limit reached"}
          return {"response": "Invalid competition type"}

so this could several culprits here:

github.com/huggingface/competitions

competitions/submissions.py

447fff164


      
              if user_id in user_team:
                  return user_team[user_id]
          
              if create_team is False:
                  return None
          
              # if user_id is not there in user_team, create a new team
              team_id = self._create_team(user_team, user_id, user_name)
              return team_id
          
          def new_submission(self, user_token, uploaded_file, submission_comment):
              # verify token
              user_info = self._get_user_info(user_token)
              submission_id = str(uuid.uuid4())
              user_id = user_info["id"]
              team_id = self._get_team_id(user_info, create_team=True)
          
              # check if team can submit to the competition
              if self._is_submission_allowed(team_id) is False:
                  raise SubmissionLimitError("Submission limit reached")

Some of the HfApi raise HTTPError which is a subclass RequestException

ktrapeznikov · April 11, 2025, 1:56am

So after more testing, I found that space creation is being rate limited. I was getting "Hugging Face Hub is unreachable, please try again later” message again. I tried creating a test space manually and I got the rate limit message:

HfHubHTTPError: 429 Client Error: Too Many Requests for url: https://huggingface.co/api/repos/create (Request ID: Root=1-67f855ab-109ab74d2573dd085ac5d217;491fe30c-b85f-4ef8-a77c-997967b609c9)

You have been rate-limited; you can retry this action in about 21 hours. If you're a new user, your limits will raise progressively over time. Get in touch with us at website@huggingface.co if you need access now.

I emailed huggingface. Not sure if there is a place to check what the limits are

Topic		Replies	Views
CSV Competition - Cannot reach Hugging Face Hub 🤗Hub	3	53	February 1, 2025
How to delete sumbissions in a competition Spaces	0	13	February 26, 2025
huggingface_hub.errors.HfHubHTTPError: Spaces	1	85	January 17, 2025
500 Internal error + 504 Gateway timed out Spaces	2	174	September 23, 2024
Subject: Issue with Accessing Hugging Face Spaces Spaces	10	938	April 16, 2024

Competitions Issue - Hugging Face Hub is unreachable, please try again later

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