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Application Real-Time Monitoring Service:Create and manage a silence policy

Last Updated:Jan 02, 2025

The Alert Management sub-service of Application Real-Time Monitoring Service (ARMS) provides silence policies for you to filter and converge alerts, reducing the possibility of alert storms. By configuring silence policies, you can define matching rules for alert events. When the rules are triggered, the alert events are silenced and are not matched by notification policies.

Create a silence policy

  1. Log on to the ARMS console. In the left-side navigation pane, choose Alert Management > Silence Policies.

  2. On the Silence Policies page, click Create Silence Policy.

  3. On the Create Silence Policy page, set Silence Policy Name.

  4. In the Silent Event Matching Rule section, configure the matching rules for silence events.

    Important

    Silence policies take precedence over notification policies. Alert events that match a silence policy are silenced and cannot be matched by a notification policy. For more information, see Create and manage a notification policy.

    1. Select the data source.

      • If you specify a data source, the policy applies to the alert events from the specified source (integrated component).

      • If you do not specify a data source, the policy applies to all alert events.

    2. Specify one or more expressions. You can select existing tags and add custom tags.

      The following tags are available:

      • The fields that are included in an alert rule expression. For information about how to create a tag for an alert rule in Managed Service for Prometheus, see Create an alert rule for a Prometheus instance.

      • The default tags that are provided by ARMS. The following table describes the default tags.

        Category

        Tag

        Description

        Common fields

        alertname

        The name of the alert.

        clustername

        The name of the Kubernetes cluster.

        severity

        The severity level of the alert. Valid values:

        • P1

        • P2

        • P3

        • P4

        • Default

        namespace

        The name of the namespace. For more information, see Namespaces in Kubernetes documentation.

        pod_name

        The name of the Pod. For more information, see Pods in Kubernetes documentation.

        Preset system fields

        _aliyun_arms_integration_name

        The name of the integration that you specified as the data source. By default, ARMS returns the integration name ARMS-DEFAULT.

        _aliyun_arms_involvedObject_id

        The ID of the object that triggers the alert.

        _aliyun_arms_involvedObject_name

        The name of the object that triggers the alert.

        _aliyun_arms_region_id

        The region ID of ARMS.

        _aliyun_arms_alert_rule_id

        The ID of the alert rule.

        _aliyun_arms_alert_type

        The type of the alert rule. Valid values:

        • 101: Prometheus alert

        • 5: Application Monitoring alert

        • 4: Browser Monitoring alert

      Note
      • If you want an alert to be triggered when multiple conditions are met at the same time, click + Add Condition to add a matching condition in the same matching rule.

      • If you want an alert to be triggered when only a single condition is met, click + Add Rule to add a matching rule.

  5. Set Effective Period. The options are as follows:

    • Persistent: The policy is always effective.

    • Recurring: The policy takes effect on a daily or weekly basis. Select Every Day or Weekly and click Create.

    • Custom Time Period: Click Create to specify the time period.

  6. Click Save.

Manage a silence policy

On the Silence Policies page, you can:

  • Edit a silence policy: Click Edit in the Actions column of the policy. In the panel that appears, change the settings and click Save.

  • Enable or disable a silence policy: In the Status column of the policy, turn the switch on or off.

  • Delete a silence policy: Click Delete in the Actions column of the policy. In the dialog box that appears, click OK.

  • Copy a silence policy: Click Copy in the Actions column of the policy to create an identical one.