VerneMQ Tracing

VerneMQ Tracing

1. Run VerneMQ.

docker-compose.yaml:

version: '3.3'
services:
  vernemq:
    image: vernemq/vernemq
    ports:
      - '1883:1883'
    environment:
      DOCKER_VERNEMQ_ALLOW_ANONYMOUS: 'on'
      DOCKER_VERNEMQ_ACCEPT_EULA: 'yes'

OR

docker run -p 1883:1883 -e "DOCKER_VERNEMQ_ACCEPT_EULA=yes" --name vernemq1 -d vernemq/vernemq

2. Connect to container console

docker exec -it <container name or id>

Run docker ps to check container name or id.

3. Check active sessions

vmq-admin session show

Output:

+--------------------+-----------+------------+------------+-----------+-------------+
| client_id          | is_online | mountpoint | peer_host  | peer_port | user        |
+--------------------+-----------+------------+------------+-----------+-------------+
| test-client_pub    | true      |            | 172.26.0.1 | 45864     | test-client |
+--------------------+-----------+------------+------------+-----------+-------------+
| test-client_sub    | true      |            | 172.26.0.1 | 45448     | test-client |
+--------------------+-----------+------------+------------+-----------+-------------+
| test-client_health | true      |            | 172.26.0.1 | 45436     | test-client |
+--------------------+-----------+------------+------------+-----------+-------------+

4. Trace

vmq-admin trace client client-id=test-client_pub

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Sources: Inspecting sessions Tracing