ValueError: Could not connect to a Chroma server. Are you sure it is running?

xyfZzz commented 3 weeks ago

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Dify version

v0.11.0

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

docker-worker-1      | [2024-11-12 14:02:26,856: ERROR/MainProcess] consume document failed
docker-worker-1      | Traceback (most recent call last):
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/urllib3/connection.py", line 199, in _new_conn
docker-worker-1      |     sock = connection.create_connection(
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/urllib3/util/connection.py", line 85, in create_connection
docker-worker-1      |     raise err
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/urllib3/util/connection.py", line 73, in create_connection
docker-worker-1      |     sock.connect(sa)
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/gevent/_socketcommon.py", line 590, in connect
docker-worker-1      |     self._internal_connect(address)
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/gevent/_socketcommon.py", line 634, in _internal_connect
docker-worker-1      |     raise _SocketError(err, strerror(err))
docker-worker-1      | ConnectionRefusedError: [Errno 111] Connection refused
docker-worker-1      | 
docker-worker-1      | The above exception was the direct cause of the following exception:
docker-worker-1      | 
docker-worker-1      | Traceback (most recent call last):
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/urllib3/connectionpool.py", line 789, in urlopen
docker-worker-1      |     response = self._make_request(
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/urllib3/connectionpool.py", line 495, in _make_request
docker-worker-1      |     conn.request(
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/urllib3/connection.py", line 441, in request
docker-worker-1      |     self.endheaders()
docker-worker-1      |   File "/usr/local/lib/python3.10/http/client.py", line 1278, in endheaders
docker-worker-1      |     self._send_output(message_body, encode_chunked=encode_chunked)
docker-worker-1      |   File "/usr/local/lib/python3.10/http/client.py", line 1038, in _send_output
docker-worker-1      |     self.send(msg)
docker-worker-1      |   File "/usr/local/lib/python3.10/http/client.py", line 976, in send
docker-worker-1      |     self.connect()
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/urllib3/connection.py", line 279, in connect
docker-worker-1      |     self.sock = self._new_conn()
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/urllib3/connection.py", line 214, in _new_conn
docker-worker-1      |     raise NewConnectionError(
docker-worker-1      | urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7f7b18dfebc0>: Failed to establish a new connection: [Errno 111] Connection refused
docker-worker-1      | 
docker-worker-1      | The above exception was the direct cause of the following exception:
docker-worker-1      | 
docker-worker-1      | Traceback (most recent call last):
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/requests/adapters.py", line 486, in send
docker-worker-1      |     resp = conn.urlopen(
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/urllib3/connectionpool.py", line 843, in urlopen
docker-worker-1      |     retries = retries.increment(
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/urllib3/util/retry.py", line 519, in increment
docker-worker-1      |     raise MaxRetryError(_pool, url, reason) from reason  # type: ignore[arg-type]
docker-worker-1      | urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='127.0.0.1', port=8000): Max retries exceeded with url: /api/v1/tenants/default_tenant (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f7b18dfebc0>: Failed to establish a new connection: [Errno 111] Connection refused'))
docker-worker-1      | 
docker-worker-1      | During handling of the above exception, another exception occurred:
docker-worker-1      | 
docker-worker-1      | Traceback (most recent call last):
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/chromadb/api/client.py", line 351, in _validate_tenant_database
docker-worker-1      |     self._admin_client.get_tenant(name=tenant)
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/chromadb/api/client.py", line 399, in get_tenant
docker-worker-1      |     return self._server.get_tenant(name=name)
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/chromadb/telemetry/opentelemetry/__init__.py", line 146, in wrapper
docker-worker-1      |     return f(*args, **kwargs)
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/chromadb/api/fastapi.py", line 132, in get_tenant
docker-worker-1      |     resp = self._session.get(
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/requests/sessions.py", line 602, in get
docker-worker-1      |     return self.request("GET", url, **kwargs)
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/requests/sessions.py", line 589, in request
docker-worker-1      |     resp = self.send(prep, **send_kwargs)
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/requests/sessions.py", line 703, in send
docker-worker-1      |     r = adapter.send(request, **kwargs)
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/requests/adapters.py", line 519, in send
docker-worker-1      |     raise ConnectionError(e, request=request)
docker-worker-1      | requests.exceptions.ConnectionError: HTTPConnectionPool(host='127.0.0.1', port=8000): Max retries exceeded with url: /api/v1/tenants/default_tenant (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f7b18dfebc0>: Failed to establish a new connection: [Errno 111] Connection refused'))
docker-worker-1      | 
docker-worker-1      | During handling of the above exception, another exception occurred:
docker-worker-1      | 
docker-worker-1      | Traceback (most recent call last):
docker-worker-1      |   File "/app/api/core/indexing_runner.py", line 76, in run
docker-worker-1      |     self._load(
docker-worker-1      |   File "/app/api/core/indexing_runner.py", line 661, in _load
docker-worker-1      |     tokens += future.result()
docker-worker-1      |   File "/usr/local/lib/python3.10/concurrent/futures/_base.py", line 458, in result
docker-worker-1      |     return self.__get_result()
docker-worker-1      |   File "/usr/local/lib/python3.10/concurrent/futures/_base.py", line 403, in __get_result
docker-worker-1      |     raise self._exception
docker-worker-1      |   File "/usr/local/lib/python3.10/concurrent/futures/thread.py", line 58, in run
docker-worker-1      |     result = self.fn(*self.args, **self.kwargs)
docker-worker-1      |   File "/app/api/core/indexing_runner.py", line 718, in _process_chunk
docker-worker-1      |     index_processor.load(dataset, chunk_documents, with_keywords=False)
docker-worker-1      |   File "/app/api/core/rag/index_processor/processor/paragraph_index_processor.py", line 59, in load
docker-worker-1      |     vector = Vector(dataset)
docker-worker-1      |   File "/app/api/core/rag/datasource/vdb/vector_factory.py", line 35, in __init__
docker-worker-1      |     self._vector_processor = self._init_vector()
docker-worker-1      |   File "/app/api/core/rag/datasource/vdb/vector_factory.py", line 56, in _init_vector
docker-worker-1      |     return vector_factory_cls().init_vector(self._dataset, self._attributes, self._embeddings)
docker-worker-1      |   File "/app/api/core/rag/datasource/vdb/chroma/chroma_vector.py", line 133, in init_vector
docker-worker-1      |     return ChromaVector(
docker-worker-1      |   File "/app/api/core/rag/datasource/vdb/chroma/chroma_vector.py", line 47, in __init__
docker-worker-1      |     self._client = chromadb.HttpClient(**self._client_config.to_chroma_params())
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/chromadb/__init__.py", line 204, in HttpClient
docker-worker-1      |     return ClientCreator(tenant=tenant, database=database, settings=settings)
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/chromadb/api/client.py", line 60, in __init__
docker-worker-1      |     self._validate_tenant_database(tenant=tenant, database=database)
docker-worker-1      |   File "/app/api/.venv/lib/python3.10/site-packages/chromadb/api/client.py", line 353, in _validate_tenant_database
docker-worker-1      |     raise ValueError(
docker-worker-1      | ValueError: Could not connect to a Chroma server. Are you sure it is running?

✔️ Expected Behavior

No response

❌ Actual Behavior

No response

crazywoola commented 3 weeks ago

Please use docker ps to check if the vdb service is up and running.

dosubot[bot] commented 3 weeks ago

To resolve the "ValueError: Could not connect to a Chroma server. Are you sure it is running?" error in a self-hosted Docker environment using Dify version v0.11.0, ensure that the Chroma service is correctly configured and running. Here are the steps you can follow:

Check Chroma Service Configuration: Ensure that the Chroma service is defined in your docker-compose.yaml file. It should look like this:

chroma:
 image: ghcr.io/chroma-core/chroma:0.5.1
 restart: always
 volumes:
   - ./volumes/chroma:/chroma/chroma
 environment:
   CHROMA_SERVER_AUTHN_CREDENTIALS: difyai123456
   CHROMA_SERVER_AUTHN_PROVIDER: chromadb.auth.token_authn.TokenAuthenticationServerProvider
   IS_PERSISTENT: TRUE
 ports:
   - "8000:8000"

Verify Chroma Service is Running: Use the following command to check if the Chroma service is running:
```
docker-compose ps
```
Look for the Chroma service in the list and ensure its status is "Up".
Check Network Configuration: Ensure that the Chroma service is accessible from the service that is trying to connect to it. Verify that the network settings in your Docker Compose file allow communication between services.
Check Environment Variables: Ensure that the environment variables for Chroma are correctly set, especially CHROMA_SERVER_AUTHN_CREDENTIALS and CHROMA_SERVER_AUTHN_PROVIDER.
Logs for Debugging: Check the logs of the Chroma service for any errors or issues:
```
docker-compose logs chroma
```

By following these steps, you should be able to resolve the connection issue with the Chroma server ^[1]^[2].

To continue talking to Dosu, mention @dosu.

langgenius / dify