urllib3.exceptions.newconnectionerror

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i start the embedding model with fastchat like
`python3 -m fastchat.serve.controller --host 127.0.0.1 --port 7008 & python3 -m fastchat.serve.model_worker --host 127.0.0.1 --port 7007 --worker-address http://127.0.0.1:7007 --controller-address http://127.0.0.1:7008 --model-path bge-large-zh-v1.5 --model-name text-davinci-003 & python3 -m fastchat.serve.openai_api_server --host 127.0.0.1 --port 7009 --controller-address http://127.0.0.1:7008`
and get
but when i test the embedding service with python code like
```
from langchain.embeddings.openai import OpenAIEmbeddings
import os
os.environ['OPENAI_API_KEY']="EMPTY"
os.environ['OPENAI_API_BASE']="http://41.230.180.239:7009/v1"
embedding=OpenAIEmbeddings(model="text-davinci-003")
print(embedding.embed_query("str"))
```
i get a error respose like this
how to solve this problem, please

Start by reproducing the two FastChat commands and the LangChain OpenAIEmbeddings call shown in the issue. Check the controller, model worker, and OpenAI API server addresses and compare them with the configured OPENAI_API_BASE. Done means the embedding request connects successfully and returns an embedding instead of the urllib3 connection error.

Written by the indexing model from the issue text.