Get Active Connections in RabbitMQ

RabbitMQ is a widely used message broker that facilitates communication between different services and applications. Monitoring active connections in RabbitMQ are crucial for debugging, performance analysis, and ensuring smooth operations. This tutorial shows how to get active connections in RabbitMQ.

1. CLI

RabbitMQ provides a built-in command line tool, rabbitmqctl, which allows you to list active connections easily:

sudo rabbitmqctl -s list_connections

Example output:

test    127.0.0.1   51804   running
test    127.0.0.1   38724   running

Here, the output displays the connection name, IP address, port, and connection state.

2. HTTP API

RabbitMQ also exposes an HTTP API that allows you to retrieve active connections programmatically. You can use curl to query the API as follows:

curl -u guest:guest http://localhost:15672/api/connections

The part of the output:

[
  {
    ...
    "name": "127.0.0.1:38724 -> 127.0.0.1:5672",
    "peer_port": 38724,
    "state": "running"
  },
  {
    ...
    "name": "127.0.0.1:51804 -> 127.0.0.1:5672",
    "peer_port": 51804,
    "state": "running"
  }
]

The API response provides detailed information about each connection.