Remote milvus db not connecting

[andrei-one]

Hi,

I have a milvus db that I started it on a remote VM using docker compose.
I can connect to it with Atto but when I try to connect using the library in python is not taking the host i set but is using the localhost

`from pymilvus import connections
from langchain_milvus import Milvus

host = "35.451.77.124"
port = "19530"
connections.connect(host=host, port=port)
print("Milvus connection established successfully!")
print("Active connections:", connections.list_connections())

class DummyEmbeddings:
def embed_documents(self, texts):
return [[0.1] * 768 for _ in texts]
def embed_query(self, text):
return [0.1] * 768

embeddings = DummyEmbeddings()

collection_name = "collection_name"
vectorstore = Milvus(
collection_name="...",
embedding_function=embeddings,
connection_args={
"host": "35.451.77.124",
"port": "19530",
"secure": False,
},
text_field="text",
vector_field="embedding",
auto_id=True,
)

print("Vectorstore created successfully!")

`

That is the code and bellow the exception

`python milvus_connect_test.py

/Users/a/Documents/git/ai/venv/lib/python3.12/site-packages/pymilvus/client/init.py:6: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
from pkg_resources import DistributionNotFound, get_distribution
Milvus connection established successfully!
Active connections: [('default', <pymilvus.client.grpc_handler.GrpcHandler object at 0x131a56d20>)]
2025-05-31 21:34:18,132 [ERROR][_create_connection]: Failed to create new connection using: 06717dac9e8149b2a72a0ace006cb90f (milvus_client.py:918)
Traceback (most recent call last):
File "/Users/a/Documents/git/ai/milvus_connect_test.py", line 24, in
vectorstore = Milvus(
^^^^^^^
File "/Users/a/Documents/git/ai/venv/lib/python3.12/site-packages/langchain_milvus/vectorstores/milvus.py", line 383, in init
self._milvus_client = MilvusClient(
^^^^^^^^^^^^^
File "/Users/a/Documents/git/ai/venv/lib/python3.12/site-packages/pymilvus/milvus_client/milvus_client.py", line 66, in init
self._using = self._create_connection(
^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/aa/Documents/git/ai/venv/lib/python3.12/site-packages/pymilvus/milvus_client/milvus_client.py", line 919, in _create_connection
raise ex from ex
File "/Users/ana/Documents/git/aig/venv/lib/python3.12/site-packages/pymilvus/milvus_client/milvus_client.py", line 916, in _create_connection
connections.connect(using, user, password, db_name, token, uri=uri, **kwargs)
File "/Users/a/Documents/git/ai/venv/lib/python3.12/site-packages/pymilvus/orm/connections.py", line 461, in connect
connect_milvus(**kwargs, user=user, password=password, token=token, db_name=db_name)
File "/Users/a/Documents/git/ai/venv/lib/python3.12/site-packages/pymilvus/orm/connections.py", line 411, in connect_milvus
gh._wait_for_channel_ready(timeout=timeout)
File "/Users/a/Documents/git/ai/venv/lib/python3.12/site-packages/pymilvus/client/grpc_handler.py", line 152, in _wait_for_channel_ready
raise MilvusException(
pymilvus.exceptions.MilvusException: <MilvusException: (code=2, message=Fail connecting to server on localhost:19530, illegal connection params or server unavailable)>
`
What I'm doing it wrong?

[andrei-one]

vectorstore = Milvus( collection_name="your_existing_collection_name", embedding_function=embeddings, connection_args={ "uri": "tcp://xx.xxx.xx.xxx:19530", "secure": False, }, text_field="text", vector_field="embedding", auto_id=True, )

you need to use URI in the connection args, now is working