Help Center/ Content Delivery Network/ User Guide/ Analytics/ Service Monitoring/ Monitoring & Alarms
Updated on 2026-10-21 GMT+08:00
View PDF
Share

Monitoring & Alarms

Scenarios

You can interconnect CDN with Cloud Eye to monitor CDN metrics, such as traffic, bandwidth, and traffic hit ratio. CDN reports domain data to Cloud Eye in real time. You can also set alarm rules. When the value of a metric exceeds the alarm threshold, an alarm is generated. This helps you learn about the business status in real time and prevent risks in a timely manner.

Precautions

  • Domain names with special configurations are not supported.
  • Data reporting latency is typically about 4 minutes. This latency may increase in special cases, such as edge-node network jitter. During these periods, monitoring data may be temporarily unavailable in Cloud Eye.
  • Data of accounts that enabled Cloud Eye monitoring before October 30, 2024 (UTC+08:00) will be reported to the CN North-Beijing4 region of Cloud Eye. Data of accounts that enabled Cloud Eye monitoring after October 30, 2024 (UTC+08:00) will be reported to the AP-Singapore region of Cloud Eye.

    Enable Cloud Eye in the AP-Singapore region before reporting monitoring data there for the first time.

  • Cloud Eye monitoring is free of charge on CDN. If you configure alarms on Cloud Eye, SMN will charge you for alarm notifications sent to you. For details about SMN pricing, see SMN Pricing Details.

Enabling Monitoring & Alarms

  1. Log in to the CDN console.
  2. In the navigation pane, choose Analytics > Service Monitoring.
  3. Click the Monitoring & Alarms tab.
  4. Click Enable Now to enable monitoring & alarms.
    Figure 1 Enabling monitoring & alarms

Configuring Recommended Alarm Rules

After domain name data is reported to Cloud Eye, the system provides the one-click alarm function, which includes alarm rules for status codes 4xx and 5xx. In the 5 Domains with the Most Alarms area, click Configure. On the alarm configuration page, toggle on Enable All Recommended Alarm Rules to enable related alarms with one click.
  • To adjust the default alarm rules, click Cloud Eye One-Click Monitoring to go to the Cloud Eye console.
  • To adjust the notification policies, click Create Notification Policy to go to the Cloud Eye console.
  • If existing alarm rules cannot meet your needs, click Create alarm rules to create more.
Figure 2 Alarm configurations

Creating a Custom Alarm Rule

In the Alarms Today area, click Create Alarm Rule. The page for creating alarm rules is displayed.

Figure 3 Creating an alarm rule
Table 1 Parameters

Parameter

Description

Name

Name of the alarm rule. The system generates a random name, which you can modify.

Example value: alarm-poxz

Monitoring Scope

Resources to which the alarm rule applies. Only All resources can be selected.

Alarm Policy

Custom conditions that define when an alarm is triggered. Alarms are raised for instant events. For example, an alarm is triggered immediately if the running status becomes abnormal.

Notification Policies

Combination of parameters, such as notification group, window, and template.

Viewing Monitoring Details

  1. Log in to the CDN console.
  2. In the navigation pane, choose Analytics > Service Monitoring.
  3. Click the Monitoring & Alarms tab to check monitoring information.
    • Alarms Today: displays alarms generated today by severity. If no alarm rule is configured or no alarm is generated for the domain names, you can click Configure to use recommended alarm rules or customize alarm rules.
    • 5 Domains with the Most Alarms: displays five domain names with the most alarms.
      • If no alarm rule is configured or no alarm is generated for the domain names, you can click Configure to use recommended alarm rules or customize alarm rules.
    • Domain Monitoring Details: displays certain metrics by domain name or time.
Parent topic: Service Monitoring