Alert configuration

How it works

1. Health check: GTM continuously performs health checks on configured addresses and address pools.

2. Status evaluation: When a health check fails, GTM marks the address or address pool as unavailable.

3. Alert triggering: An alert event is triggered when the status changes to unavailable or is restored to available.

4. Notification sending: GTM sends a notification about the event to the specified alert contacts based on the configured alert rules and notification methods.

Procedure

Step 1. Set up an alert contact group

The Alert Group setting uses alert contact groups from Cloud Monitor. Create at least one alert contact group before proceeding. For more information, see Create an alert contact or an alert contact group.

1. 1. Log on to the Cloud Monitor console.

   2. In the left-side navigation pane, choose Alerts > Alert Contacts.

   3. On the Alert Contacts tab, click Create Alert Contact.

   4. In the Set Alert Contact panel, configure the following parameters.

      Parameter	Description
      Name	Must be 2–40 characters, starting with a letter or Chinese character. Supports letters, Chinese characters, digits, periods (.), and underscores (_).
      Region for alert notification service	Alert contact details, such as name and email address, are stored and processed in the selected region.
      Phone	Text messages are sent only to Chinese mainland phone numbers (+86).
      Email address	The email address used for alert notifications.
      Description	A custom description for the alert contact.
      DingTalk | Lark | WeCom | Slack Webhook(http|https)	The webhook URL. Must start with http:// or https://. Note To test the webhook's connectivity, click Test next to the URL. In the Webhook Test panel, use the status code and test results to verify the webhook connectivity. You can also specify the callback template type and Language, and then click Test again to view the test results.
      Language of alert notifications	Defaults to Automatic. Cloud Monitor matches the notification language to your Alibaba Cloud account language.

   5. Verify the information and click Confirm.

      Note

      Cloud Monitor phone alerts are built-in — no additional channel configuration is required. To receive phone alerts, ensure the following:

      • The alert contact has a valid phone number and has been added to an alert contact group.

      • When creating alert rules (for products such as ECS or EMR), select the alert contact group and set the alert severity to Critical. Cloud Monitor then automatically sends notifications by phone, text message, email, and webhook.

   6. (Optional) Activate the email address and phone number.

      If you specify an email address and phone number, their status is Pending Activation by default. The contact must click the activation links in the email and text message within 24 hours to receive alert notifications. After activation, the email address and phone number appear in the contact list.

2. Create an alert contact group and add the new contact.

   In the Create Contact Group dialog box, enter a Group Name and Remarks. In the Select Contacts area, select the target contact from the Existing Contacts list and click the right arrow button to move them to the Selected Contacts list. Click OK.

Step 2. Configure alerts

Two alert configurations are available: Custom Alert Configuration and Inherit Global Alert Configuration.

Method 1: Custom Alert Configuration

Use a custom alert configuration when an access domain name has unique alerting requirements.

1. In Alibaba Cloud DNS - Global Traffic Manager, go to the Access Domain tab.

2. Click the Alert button next to the target access domain name.

   Configuration Method: Select Custom Alert Configuration. You can then customize the alert group and notification methods.

   Alert Group: You can select up to five groups.

   Notification Methods: Defines the event types that trigger alerts and the notification methods.

   Important

   Chatbot notifications (DingTalk, WeCom, and Lark) may be subject to platform-specific rate limits. If the alert frequency is high, some notifications may not be delivered promptly. We recommend configuring email or text message notifications as a backup to ensure that you receive critical alerts.

   Alert event types include address unavailable, address restored to available, address pool unavailable, and address pool restored to available. For each event type, you can select email notification, chatbot notification, and SMS notification.

Method 2: Global settings

If you select Use Global Alert Settings, the Global Alert Configuration applies when an alert is triggered for this access domain name. Use this method to apply consistent alert settings across domain names.

1. Go to Alibaba Cloud DNS - Alert Settings.

2. Switch to the Global Traffic Manager tab.

3. Select an Alert Group.

4. Notification Method:

   Alert Event Type: Includes Address Unavailable, Address Restored to Available, Address Pool Unavailable, and Address Pool Restored to Available.

   Notification Method: Includes Email, Bot, and SMS. Chatbot notifications support DingTalk, WeCom, and Lark.

   Important

   Chatbot notifications (DingTalk, WeCom, and Lark) may be subject to platform-specific rate limits. If the alert frequency is high, some notifications may not be delivered promptly. We recommend configuring email or text message notifications as a backup to ensure that you receive critical alerts.

5. Go to Alibaba Cloud DNS - Global Traffic Manager, click the Alerts button next to the target access domain name, and for Notification Method, select Use Global Alert Settings. The Alert Group and Notification Methods fields become read-only and use the global alert configuration.

   In the notification method table, the alert event types include address unavailable, address restored to available, address pool unavailable, and address pool restored to available. The notification channels include email notification, chatbot notification, and SMS notification.

Billing

Alerting is free of charge, but notification services may incur fees:

• Email notification: Free.

• Chatbot notification: Free.

• SMS notification: Billed through Short Message Service (SMS) based on the number of successfully delivered messages.

Related topics

For more information, see Alerting FAQ.