Elastic Compute Service:Configure alerts for an ECS instance

Enable initiative alert

You can enable initiative alert for key metrics of ECS to quickly establish an alert system and obtain the exception information of key metrics in a timely manner. After initiative alert is enabled, the related alert rules apply to all ECS instances within your Alibaba cloud account.

1. Log on to the ECS console.
2. In the left-side navigation pane, choose Instances & Images > Instances.
3. In the top navigation bar, select a region.
4. Find the instance and click its ID.
5. On the Instance Details page, click the Monitoring tab.
6. Click Initiative Alert.
7. On the Configure Initiative Alert tab, turn on Initiative Alert.
   

   After initiative alert is enabled, you can view the details of an alert rule. You can also perform the following operations:

   • Disable an alert rule: If you no longer need an alert rule, you can disable the rule.
   • Modify an alert rule: If you find that an alert rule is not suitable for your business, you can go to the Cloud Monitor console to modify the rule.

Configure custom alert rules

In addition to initiative alert, you can also configure custom alert rules for your instance based on your business requirements. The created custom alert rules automatically take effect for the current instance, which allows you to learn about the exceptions of the instance in a timely manner.

1. In the left-side navigation pane, choose Instances & Images > Instances.
2. In the top navigation bar, select a region.
3. Find the instance and click its ID.
4. On the Instance Details page, click the Monitoring tab.
5. Click Create Alert Rules.
6. On the Create Custom Alert Rule tab, create custom alert rules.
   1. Configure parameters for the alert rule and click Next.
      

      Parameter	Description
      Alert Rules	Specifies parameters for the alert rule, including the name and content of the alert rule. This parameter specifies the condition that triggers an alert. For example, if the condition specifies that the average CPU utilization every 5 minutes is greater than or equal to 90% for three consecutive cycles, Cloud Monitor checks whether the condition is met every 5 minutes only three times. Note For information about the ECS metrics of alert rules, see Metrics. You can click Add Alert Rule to create multiple alert rules.
      Mute For	Specifies the mute period. If the alert is not cleared within the mute period, a new alert notification is sent when the mute period ends.
      Validity Period	Specifies the period during which the alert rule is in effect. The system monitors the metrics and generates alerts only when the alert rule is in effect.

   2. Configure the parameters in the Configure Notification Methods step and click Create.

      Parameter	Description
      Alert Contact	The contacts or contact groups to which an alert notification is sent. For more information, see Create an alert contact or alert group.
      Notification Methods	The method to receive alert notifications and the supplementary information of alert emails. The value is set to Email and Webhook URL. You can specify custom remarks that you want to include in the alert notification email.
      Callback URL	The callback URL that can be accessed over the Internet. Cloud Monitor sends a POST request to push alert messages to the specified callback URL. Only HTTP requests are supported.

   The created custom alert rule takes effect only for the current instance.
7. Optional:You can click Manage Alert Rules on the Monitoring tab to go to the Cloud Monitor console to view or modify the custom alert rule.

References

• What is CloudMonitor?
• Enable the initiative alert feature
• Manage alert rules