image search doesn't work if milvus has a certificate/ssl enabled

[cdingIBM]

When we tried to run the sample code, we keep seeing the following error.

---------------------------------------------------------------------------
RuntimeError                              Traceback (most recent call last)
File <timed exec>:17

File ~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/pipeline.py:101, in Pipeline.output(self, *output_schema)
     [98](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/pipeline.py:98) dag_dict[self._clo_node]['next_nodes'].append(uid)
    [100](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/pipeline.py:100) run_pipe = RuntimePipeline(dag_dict)
--> [101](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/pipeline.py:101) run_pipe.preload()
    [102](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/pipeline.py:102) return run_pipe

File ~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/runtime_pipeline.py:153, in RuntimePipeline.preload(self)
    [149](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/runtime_pipeline.py:149) def preload(self):
    [150](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/runtime_pipeline.py:150)     """
    [151](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/runtime_pipeline.py:151)     Preload the operators.
    [152](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/runtime_pipeline.py:152)     """
--> [153](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/runtime_pipeline.py:153)     return _Graph(self._dag_repr.nodes, self._dag_repr.edges, self._operator_pool, self._thread_pool, TimeProfiler(False))

File ~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/runtime_pipeline.py:67, in _Graph.__init__(self, nodes, edges, operator_pool, thread_pool, time_profiler, trace_edges)
     [65](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/runtime_pipeline.py:65) self.features = None
     [66](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/runtime_pipeline.py:66) self._time_profiler.record(Event.pipe_name, Event.pipe_in)
---> [67](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/runtime_pipeline.py:67) self._initialize()
     [68](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/runtime_pipeline.py:68) self._input_queue = self._data_queues[0]

File ~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/runtime_pipeline.py:83, in _Graph._initialize(self)
     [81](https://file+.vscode-resource.vscode-cdn.net/Users/cding/workspace/git/ocp/watsonx/examples/image/text_image_search/~/.pyenv/versions/3.10.0/lib/python3.10/site-packages/towhee/runtime/runtime_pipeline.py:81) node = create_node(self._nodes[name], self._operator_pool, in_queues, out_queues, self._time_profiler)
...
    :return dict:
  File "/Users/cding/.pyenv/versions/3.10.0/lib/python3.10/site-packages/pymilvus/client/grpc_handler.py", line 150, in _wait_for_channel_ready
    def _setup_db_interceptor(self, db_name):
pymilvus.exceptions.MilvusException: <MilvusException: (code=2, message=Fail connecting to server on na4.services.cloud.techzone.ibm.com:45338, illegal connection params or server unavailable)>
Output is truncated. View as a [scrollable element](command:cellOutput.enableScrolling?6a3ebbd4-2f65-40f8-8ff8-b0085b9545bf) or open in a [text editor](command:workbench.action.openLargeOutput?6a3ebbd4-2f65-40f8-8ff8-b0085b9545bf). Adjust cell output [settings](command:workbench.action.openSettings?%5B%22%40tag%3AnotebookOutputLayout%22%5D)...

Our milvus instance requires a certificate/ssl and we can use connections.connect with the following command. But the towhee pipeline uses milvus_client doesn't allow specifying certificate or security=True as seen below. Is there any way to allow SSL/cert enabled milvus work with Towhee?

 connections.connect(alias='default', secure=True, server_pem_path="/Users/cding/workspace/git/ocp/watsonx/milvus/milvus_grpc_2.cert", server_name=HOST, host=HOST, port=PORT, user=USER, password=PASSWORD)

[junjiejiangjjj]

Hi, @cdingIBM, now the server_pem_path parameter is not supported. You can write a milvus operator yourself. Please refer to this document: https://towhee.readthedocs.io/en/latest/operator/usage.html#custom-operators