You can create alert rules to monitor the usage and status of Alibaba Cloud service resources. If resource metrics meet specific alert conditions, alerts are triggered and CloudMonitor sends alert notifications. This way, you can identify and handle the exceptions of monitoring data at the earliest opportunity.

Procedure

  1. Log on to the CloudMonitor console.
  2. In the left-side navigation pane, choose Alerts > Alert Rules.
  3. On the Alert Rules page, click Create Alert Rule.
  4. In the Create Alert Rule panel, set the parameters. The following table describes the parameters.
    Parameter Description
    Product The name of the Alibaba Cloud service that can be monitored by CloudMonitor. Example: RDS-DB.
    Resource Range The range of the resources to which the alert rule is applied. Valid values:
    • All Resources: The alert rule applies to all resources of the specified cloud service.
    • Application Group: The alert rule applies to all resources in the specified application group of the specified cloud service.
    • Instances: The alert rule applies to the specified resources of the specified cloud service.
    Rule Description The content of the alert rule. The parameters in this section specify the conditions that trigger an alert. To configure the content of the alert rule, perform the following steps:
    1. Click Add Rules.
    2. In the Add Rule Description panel, specify the rule name, metric type, metrics, thresholds, and alert levels.
    3. Click OK.
    Mute For The interval at which CloudMonitor sends alert notifications until the alert that is triggered based on the alert rule is cleared. Valid values: 5 min, 15 min, 30 min, 60 min, 3 h, 6 h, 12 h, and 24 h.
    An alert is triggered when the conditions of an alert rule are met. CloudMonitor does not resend an alert notification if the alert is triggered within the mute period. If the alert is not cleared after the mute period ends, CloudMonitor resends alert notifications.
    Note You can click Advanced settings to set this parameter.
    Effective Time The period during which the alert rules are effective. CloudMonitor monitors the metrics and generates alerts only if the alert rules are effective.
    Note You can click Advanced settings to set this parameter.
    Alert Contact Group The alert contact group to which alert notifications are sent.

    The alert notifications of the application group are sent to the alert contacts that belong to the alert contact group. An alert contact group can contain one or more alert contacts.

    For more information about how to create an alert contact and an alert contact group, see Create an alert contact or alert contact group.

    Alert Callback The callback URL that can be accessed over the Internet. CloudMonitor sends a POST request to push an alert notification to the specified callback URL. Only HTTP requests are supported. For more information about how to configure alert callbacks, see Use the alert callback feature to send notifications about threshold-triggered alerts.
    Auto Scaling If you turn on Auto Scaling and an alert is triggered, the specified scaling rule is enabled. You must set the Region, ESS Group, and ESS Rule parameters.
    Log Service If you turn on Log Service and an alert is triggered, the alert information is written to the specified Logstore in Log Service. You must set the Region, ProjectName, and Logstore parameters.

    For information about how to create a project and a Logstore, see Getting Started.

    Message Service - topic If you turn on Message Service - topic and an alert is triggered, the alert information is written to the specified topic in Message Service (MNS). You must set the Region and topicName parameters.

    For information about how to create a topic, see Create a topic.

    No data alarm processing method The method that is used to handle alerts when no monitoring data is found. Default value: Do not do anything. Valid values:
    • Do not do anything
    • Send no data alarm
    • Treated as normal
  5. Click OK.