lm-sys / lm-sys/FastChat

APIError: Invalid response object from API: 'Internal Server Error' (HTTP response code was 500)

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Dominant language
Python
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Description

python -m fastchat.serve.controller
python -m fastchat.serve.vllm_worker --model-path ....../Qwen2___5-7B-Instruct --trust-remote-code --dtype bfloat16
python -m fastchat.serve.openai_api_server --host localhost --port 8000

import openai
openai.api_key = "EMPTY"
openai.api_base = "http://localhost:8000/v1"

model = "Qwen2___5-7B-Instruct"
prompt = "Once upon a time"

# create a completion
completion = openai.Completion.create(model=model, prompt=prompt)
# # print the completion
# print(prompt + completion.choices[0].text)

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the report by starting the controller, vllm_worker, and openai_api_server with the commands shown, then run the provided openai.Completion.create example. Start by tracing the request through the openai_api_server entry point and capture the server traceback for the HTTP 500. Done means the request has a clear resolution and the API behavior is verified.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
api, backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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