IoT Platform:Create an event-triggered alert rule

IoT Platform imposes limits on the frequency of connection requests, the frequency of upstream and downstream communication, and the frequency of message forwarding. If the limits are reached, throttling is triggered. This may affect the daily operations of your business. This topic describes how to use the monitoring and alerting features of CloudMonitor to configure alert rules. After you configure alert rules, you can receive alert notifications when specific resources become abnormal and handle issues at the earliest opportunity.

1. Log on to the CloudMonitor console.
2. In the left-side navigation pane, choose Event Monitoring > System Event.
3. Click the Event-triggered Alert Rules tab.
4. Click Create Alert Rule.
5. In the Create/Modify Event-triggered Alert Rule panel, configure the parameters and click OK.

   The following table describes the parameters.

   Parameter	Description
   Alert Rule Name	Follow the instructions as prompted to specify a valid rule name.
   Product Type	Select IoT Platform.
   Event Type	Default value: All Types. Use the default value.
   Level	Default value: All Levels. Use the default value.
   Event Name	Select the events that you want to monitor. The number of connection requests that a device sends per minute reaches the maximum limit. The number of connection requests that the current account sends to IoT Platform per second reaches the maximum limit. The number of requests that the current account publishes per second reaches the maximum limit. The number of messages that a device sends per second reaches the maximum limit. The number of requests that the current account sends to the rules engine per second reaches the maximum limit.
   Resource Range	Select All Resources.
   Notification Method	Select Alert Notification and configure the Contact Group and Notification Method parameters.

6. Test the alert rule.
   1. On the Event-triggered Alert Rules tab, find the alert rule and click Test in the Actions column.
   2. In the Create Event Test dialog box that appears on the right of the page, select an event name, modify the alert notification content, and then click OK to perform a test on the alert rule.
      After you select an event name, the JSON-formatted alert notification content is displayed in the text box. You can modify the notification content.
   3. Check whether the contacts of the alert group can receive the modified alert notification.
      For example, the members of a DingTalk group receive a message that contains the following content.