Rule Events

Overview

This page is the English counterpart of the Chinese Rule Events guide. It summarizes cluster edition operation, deployment, integration, and high-availability maintenance while keeping the document path aligned with the Chinese documentation structure.

How To Use This Page

• Follow the same operation order as the Chinese source page.
• Keep configuration values, topic names, ports, commands, and file paths consistent with your deployment environment.
• Screenshots and diagrams reuse the Chinese documentation image directory so assets are maintained in one place.
• For production changes, validate the operation in a test environment before applying it online.

Reference Commands And Configuration

The following snippets are preserved from the source guide because commands, configuration keys, and protocol examples should remain exact.

select
  *
from
"$events/client_connected"

{
	"proto_name": "MQTT",
	"node": "127.0.0.1",
	"clientId": "S&testD664Q81G8092&41&1",
	"ip_address": "127.0.0.1",
	"port": 52865,
	"ts": 1735455370388,
	"keepalive": 60,
	"clean_start": true,
	"status": true
}

select
  clientId,
  status,
  keepalive
from
"$events/client_connected"

{
	"clientId": "S&testD664Q81G8092&41&1",
	"keepalive": 60,
	"status": true
}

select
*
from
"$events/client_disconnected"