'this version of sdk is incompatible with server, please downgrade your sdk or upgrade your server' error when I try to connect to the milvus server

Question

I'm trying out Milvus implementations on a jupyter notebook, but I run into an error when I try to connect to the Milvus server. I'm attaching the cell and the corresponding error for reference. Note that I'm using pymilvus 2.2.9.

Connect to Milvus service connections.connect(host=HOST, port=PORT)

Create collection collection = create_milvus_collection(COLLECTION_NAME, DIM) print(f'A new collection created: {COLLECTION_NAME}')

Error:

2023-06-19 03:51:10,646 - 8380245248 - decorators.py-decorators:108 - ERROR: RPC error: [__internal_register], <MilvusException: (code=1, message=this version of sdk is incompatible with server, please downgrade your sdk or upgrade your server )>, <Time:{'RPC start': '2023-06-19 03:51:10.636182', 'RPC error': '2023-06-19 03:51:10.646730'}>

_InactiveRpcError Traceback (most recent call last) File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pymilvus/decorators.py:163, in upgrade_reminder..handler(*args, **kwargs) 162 try: 163 return func(*args, **kwargs) 164 except grpc.RpcError as e:

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pymilvus/client/grpc_handler.py:1359, in GrpcHandler.__internal_register(self, user, host) 1358 req = Prepare.register_request(user, host) 1359 response = self._stub.Connect(request=req) 1360 if response.status.error_code != common_pb2.Success:

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/grpc/_interceptor.py:247, in _UnaryUnaryMultiCallable.call(self, request, timeout, metadata, credentials, wait_for_ready, compression) 240 def call(self, 241 request: Any, 242 timeout: Optional[float] = None, (...) 245 wait_for_ready: Optional[bool] = None, 246 compression: Optional[grpc.Compression] = None) -> Any: 247 response, ignored_call = self._with_call(request, 248 timeout=timeout, 249 metadata=metadata, 250 credentials=credentials, 251 wait_for_ready=wait_for_ready, 252 compression=compression) 253 return response

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/grpc/_interceptor.py:290, in _UnaryUnaryMultiCallable._with_call(self, request, timeout, metadata, credentials, wait_for_ready, compression) 287 call = self._interceptor.intercept_unary_unary(continuation, 288 client_call_details, 289 request) 290 return call.result(), call

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/grpc/_channel.py:379, in _InactiveRpcError.result(self, timeout) 378 """See grpc.Future.result.""" 379 raise self

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/grpc/_interceptor.py:274, in _UnaryUnaryMultiCallable._with_call..continuation(new_details, request) 273 try: 274 response, call = self._thunk(new_method).with_call( 275 request, 276 timeout=new_timeout, 277 metadata=new_metadata, 278 credentials=new_credentials, 279 wait_for_ready=new_wait_for_ready, 280 compression=new_compression) 281 return _UnaryOutcome(response, call)

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/grpc/_channel.py:1043, in _UnaryUnaryMultiCallable.with_call(self, request, timeout, metadata, credentials, wait_for_ready, compression) 1041 state, call, = self._blocking(request, timeout, metadata, credentials, 1042 wait_for_ready, compression) 1043 return _end_unary_response_blocking(state, call, True, None)

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/grpc/_channel.py:910, in _end_unary_response_blocking(state, call, with_call, deadline) 909 else: 910 raise _InactiveRpcError(state)

_InactiveRpcError: <_InactiveRpcError of RPC that terminated with: status = StatusCode.UNIMPLEMENTED details = "unknown method Connect for service milvus.proto.milvus.MilvusService" debug_error_string = "UNKNOWN:Error received from peer ipv4:127.0.0.1:19530 {created_time:"2023-06-19T03:51:10.642309+05:30", grpc_status:12, grpc_message:"unknown method Connect for service milvus.proto.milvus.MilvusService"}"

The above exception was the direct cause of the following exception:

MilvusException Traceback (most recent call last) File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pymilvus/client/grpc_handler.py:120, in GrpcHandler._wait_for_channel_ready(self, timeout) 119 grpc.channel_ready_future(self._channel).result(timeout=timeout) 120 self._setup_identifier_interceptor(self._user) 121 return

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pymilvus/client/grpc_handler.py:220, in GrpcHandler._setup_identifier_interceptor(self, user) 219 host = socket.gethostname() 220 self._identifier = self.__internal_register(user, host) 221 self._identifier_interceptor = interceptor.header_adder_interceptor(["identifier"], [str(self._identifier)])

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pymilvus/decorators.py:109, in error_handler..wrapper..handler(*args, **kwargs) 108 LOGGER.error(f"RPC error: [{inner_name}], {e}, Time:{record_dict}") 109 raise e 110 except grpc.FutureTimeoutError as e:

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pymilvus/decorators.py:105, in error_handler..wrapper..handler(*args, **kwargs) 104 record_dict["RPC start"] = str(datetime.datetime.now()) 105 return func(*args, **kwargs) 106 except MilvusException as e:

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pymilvus/decorators.py:136, in tracing_request..wrapper..handler(self, *args, **kwargs) 135 self.set_onetime_request_id(req_id) 136 ret = func(self, *args, **kwargs) 137 return ret

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pymilvus/decorators.py:85, in retry_on_rpc_failure..wrapper..handler(self, *args, **kwargs) 84 else: 85 raise e 86 except Exception as e:

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pymilvus/decorators.py:50, in retry_on_rpc_failure..wrapper..handler(self, *args, **kwargs) 49 try: 50 return func(self, *args, **kwargs) 51 except grpc.RpcError as e: 52 # DEADLINE_EXCEEDED means that the task wat not completed 53 # UNAVAILABLE means that the service is not reachable currently 54 # Reference: https://grpc.github.io/grpc/python/grpc.html#grpc-status-code

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pymilvus/decorators.py:168, in upgrade_reminder..handler(*args, **kwargs) 166 msg = "this version of sdk is incompatible with server, please downgrade your sdk or upgrade your "
167 "server " 168 raise MilvusException(message=msg) from e 169 raise e

MilvusException: <MilvusException: (code=1, message=this version of sdk is incompatible with server, please downgrade your sdk or upgrade your server )>

The above exception was the direct cause of the following exception:

MilvusException Traceback (most recent call last) Cell In[7], line 2 1 # Connect to Milvus service 2 connections.connect(host=HOST, port=PORT) 4 # Create collection 5 collection = create_milvus_collection(COLLECTION_NAME, DIM)

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pymilvus/orm/connections.py:349, in Connections.connect(self, alias, user, password, db_name, token, **kwargs) 345 if parsed_uri.scheme == "https": 346 kwargs["secure"] = True 349 connect_milvus(**kwargs, user=user, password=password, token=token, db_name=db_name) 350 return 352 # 2nd Priority, connection configs from env

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pymilvus/orm/connections.py:282, in Connections.connect..connect_milvus(**kwargs) 279 t = kwargs.get("timeout") 280 timeout = t if isinstance(t, (int, float)) else Config.MILVUS_CONN_TIMEOUT 282 gh._wait_for_channel_ready(timeout=timeout) 283 kwargs.pop('password') 284 kwargs.pop("token", None)

File /Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/pymilvus/client/grpc_handler.py:123, in GrpcHandler._wait_for_channel_ready(self, timeout) 121 return 122 except (grpc.FutureTimeoutError, MilvusException) as e: 123 raise MilvusException(Status.CONNECT_FAILED, 124 f'Fail connecting to server on {self._address}. Timeout') from e 126 raise MilvusException(Status.CONNECT_FAILED, 'No channel in handler, please setup grpc channel first')

MilvusException: <MilvusException: (code=2, message=Fail connecting to server on 127.0.0.1:19530. Timeout)>

I'm stuck, I had a grpcio issue when I was trying in colab asking me to downgrade my version to 1.53.0 and that did not work after downgrading either. I moved to jupyter and ran into what seems like a grpcio as well.

Answer 1

The similar issue was resolved by upgrading the Milvus server to version 2.2.10 and reinstalling the related libraries: pip3 install protobuf==3.20.0, pip3 install grpcio-tools, and pip3 install pymilvus==2.2.11.

It is recommended to install a PyMilvus version that matches the version of the Milvus server you installed. For more information, see Release Notes.

from https://milvus.io/docs/install-pymilvus.md

Answer 2

I had a similar issue with pymilvus==2.2.9. I used Jupyter Notebook too.

pip install pymilvus==2.2.5 solved the issue for me. (If your. milvus version is 2.2.*) https://pypi.org/project/pymilvus/

Answer 3

As @FakeAlcohol mentioned from https://milvus.io/docs/install-pymilvus.md

It is recommended to install a PyMilvus version that matches the version of the Milvus server you installed. For more information, see Release Notes.

At least the major.minor versions need to match between pymilvus and milvus server.

Like this, I can see my pymilvus: 2.3.6

!pip install pymilvus
import pymilvus
print(pymilvus.__version__)

For my local server, I can check Docker Desktop, click on the Container, mine is 2.3.7.

2.3.6 will run on 2.3.7 because major.minor versions match.

In case you're running your Milvus on Zilliz, https://stackoverflow.com/a/78143787/11494504, you can check server version like this:

import os
from pymilvus import connections, utility

TOKEN = os.getenv("ZILLIZ_API_KEY")
# Connect to Zilliz cloud using endpoint URI and API key TOKEN.
CLUSTER_ENDPOINT="https://in03-48a5b11fae525c9.api.gcp-us-west1.zillizcloud.com:443"
connections.connect(
    alias='default',
    uri=CLUSTER_ENDPOINT,
    token=TOKEN,
) 

print(f"Server version: {utility.get_server_version()}")