Manage Milvus Connections

This topic describes how to connect to and disconnect from a Milvus server.

Ensure to connect to Milvus server before any operations.

Below example connects to a Milvus server with host as localhost and port as 19530 and disconnects from it.

Connect to a Milvus server

Construct a Milvus connection. Ensure to connect to Milvus server before any operations.

# Run `python3` in your terminal to operate in the Python interactive mode.
from pymilvus import connections
connections.connect(alias="default", host='localhost', port='19530')

import { MilvusClient } from "@zilliz/milvus2-sdk-node";
const address = "localhost:19530";
const milvusClient = new MilvusClient(address);

connect -h localhost -p 19530 -a default

Parameter	Description
`alias`	Alias of the Milvus connection to construct.
`host`	IP address of the Milvus server.
`port`	Port of the Milvus server.

Parameter	Description
`address`	Address of the Milvus connection to construct.

Option	Full name	Description
-h	--host	(Optional) The host name. The default is "127.0.0.1".
-p	--port	(Optional) The port number. The default is "19530".
-a	--alias	(Optional) The alias name of the Milvus link. The default is "default".
-D	--disconnect	(Optional) Flag to disconnect from the Milvus server specified by an alias. The default alias is "default".
--help	n/a	Displays help for using the command.

Return

A milvus connection created by the passed parameters.

Raises

NotImplementedError: If handler in connection parameters is not GRPC.
ParamError: If pool in connection parameters is not supported.
Exception: If server specified in parameters is not ready, we cannot connect to server.

Disconnect from a Milvus server

Disconnect from a Milvus server.

Python Node.js CLI

connections.disconnect("default")

await milvusClient.closeConnection();

connect -D

Parameter	Description
`alias`	Alias of the Milvus server to disconnect from.

Limits

The maximum number of connections is 65,536.

What's next

Having connected to a Milvus server, you can:

For advanced operations, check: