After you create a topic, Cloud Monitor automatically starts to monitor the topic. Cloud Monitor allows you to monitor the status of MNS topics by using two metrics: notification times and success rate. Cloud Monitor also allows you to configure alert rules for these metrics. Then, you can receive alerts if a message fails to be pushed.

Metrics

The following metrics of MNS topics can be monitored in the Cloud Monitor console:

  • Notification times: the total number of pushed messages within a specified period. You can monitor whether messages are pushed within a specified period and whether business traffic reaches the expected value.
  • Success rate: the success rate of message push within a specified period. The success rate is calculated by dividing the number of pushed messages by the number of push attempts. You can monitor whether messages have been received by subscriber clients and configure alerts based on this metric.

Scenarios

You can monitor MNS topics and configure alerts in the following scenarios:

  • Business monitoring: If a fixed number of messages are pushed every day, you can view the notification times to monitor your business. If the number of notifications is less than the expected value, your business may be abnormal. You can configure alert rules to monitor your business.
  • Error alerting: Messages may fail to be pushed if an error occurs on endpoints. For example, an HTTP server stops responding, or a network exception occurs. You can view the success rate of message pushing and configure alert rules to report endpoint errors. If the success rate is lower than the expected value, Cloud Monitor sends you a DingTalk message, email, or text message.

View monitoring data

  1. Log on to the Cloud Monitor console.
  2. In the left-side navigation pane, choose Dashboard > Cloud product charts.
  3. On the Cloud product charts page, click Message Service-topic. On the page that appears, select a region. Find the topic and click Monitoring Charts in the Actions column. On the page that appears, select a resource type and a time range.View monitoring data

Configure alert rules

  1. Log on to the Cloud Monitor console.
  2. In the left-side navigation pane, click Cloud products.
  3. On the Cloud products page, click Message Service-topic.
  4. On the Message Service-topic page, perform the following operations:
    1. Select a region.
    2. Click the Topics tab.
    3. In the Topic Name column, find the topic. In the Actions column, click Alert Rules.
  5. On the Threshold Value Alert tab of the Alert Rules page, click Create Alert Rule.
  6. In the Related Resource section on the Create Alert Rule page, select Message Service-topic from the Product drop-down list, and select a resource from the Resource Range drop-down list. Set alert rules in the Set Alert Rules section. Set a notification method in the Notification Method section. Click Confirm.
    Create an alert rule