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View alert history and set silence

You can view alert history generated by configured alert policies and set silence to suppress recurring alerts. For information on creating alert policies, see Create and manage alert policies.

Info

Currently, silence can only be set for alerts generated by alert policies with the metric condition type.

View alert history​

You can view alert history generated by configured alert policies.

  1. Go to KakaoCloud Console > Management > Alert Center.

  2. Click Alert history (for organizations, click Alert history (organization)), and then check the alerts in the Alerts tab.

    ItemDescription
    Occurred atTime when the alert occurred
    Alert policyName of the alert policy that triggered the alert message
    Condition typeCondition on which the alert is based
    ServiceService where the alert occurred
    Alert summaryInformation about the occurred alert
    View detailsCheck detailed information about the occurred alert and click [Go] to view details in the Monitoring or Cloud Trail service
    SilenceClick [Silence] to open the silence settings pop-up where you can suppress alerts with the same conditions
    - For more details on silence, see Create silence
Info
  • If an alert is delivered via a receiving channel, you can access the Alert history page by clicking the [Set silence] button in the message.
  • On mobile devices, clicking the [Set silence] button will directly take you to the Silence settings page, where you can easily suppress alerts without additional condition settings.

Create silence​

You can create silence to suppress recurring alerts.

  1. Go to KakaoCloud Console > Management > Alert Center.

  2. Click Alert history (for organizations, click Alert history (organization)), and then click [Create silence].

  3. In the Create silence pop-up, enter the required information and click [Save].

    ItemDescription
    Time settingsSet the period for which alerts will be suppressed
    - Quick settings: Enter the duration for silence from the current time
    ㄴ Default: 2h (2 hours)
    ㄴ Supported units: weeks (w), days (d), hours (h), minutes (m)
    - Manual settings: Directly select start and end times
    ServiceSelect the service to silence
    - Only services with existing alert policies can be selected
    Metric itemSelect the metric item to silence
    - If you want to silence based only on labels without specifying a metric, select "All metrics"
    - If "All metrics" is selected, at least one label must be specified
    LabelsEnter the label to silence
    - Label: Attribute assigned to identify metric data
    - Enter in key=value format
    - To check labels of a specific metric, go to Monitoring > Metric Explorer and query the desired metric
    CreatorID of the user creating the silence
    DescriptionReason for creating the silence

View silence​

You can check the details of configured silence.

  1. Go to KakaoCloud Console > Management > Alert Center.

  2. Click Alert history (for organizations, click Alert history (organization)), and then check the list of silences in the Silence tab.

    ItemDescription
    IDID of the silence resource
    StatusStatus of the silence
    - Active: Active (started but not yet expired)
    - Pending: Pending (not yet started)
    - Expired: Expired (reached the end time or manually expired by user)
    Start timeUser-defined start time for silence
    End timeUser-defined end time for silence
    Condition typeCondition on which the alert is based
    ServiceService selected for silence
    LabelsLabels selected for silence
    - If a metric item was selected when creating silence, it is also shown under Labels
    MoreDepending on the silence status, you can Edit, Expire, Recreate, or Delete
    - Active or Pending: Edit or Expire
    - Expired: Recreate or Delete
    ㄴ Recreate allows you to create a new silence with the same conditions as the expired one

Modify silence​

You can edit an existing silence.

  1. Go to KakaoCloud Console > Management > Alert Center.

  2. Click Alert history (for organizations, click Alert history (organization)), and then click [More] or the [Edit] button in the top-right corner of the silence details page.

  3. In the Edit silence pop-up, update the information and click [Save].

    ItemDescription
    Time settingsSet the period for which alerts will be suppressed
    - Quick settings: Not supported when editing
    - Manual settings: Directly select new start and end times
    - Start time is set to the original value, so you must set it to a time after the current time
    - When time settings are updated, the existing silence is marked as Expired and a new silence is created with the updated conditions
    ServiceCheck and update the selected service
    - Changing the service will mark the existing silence as Expired and create a new one with the updated conditions
    Metric itemCheck and update the selected metric item
    - Changing the metric item will mark the existing silence as Expired and create a new one with the updated conditions
    LabelsCheck and update the selected labels
    - Changing labels will mark the existing silence as Expired and create a new one with the updated conditions
    CreatorID of the user who created the silence
    DescriptionReason for modifying the silence

Delete silence​

You can delete silences in the Expired state.

caution

Once an expired silence is deleted, it cannot be recreated.

  1. Go to KakaoCloud Console > Management > Alert Center.
  2. Click Alert history (for organizations, click Alert history (organization)), and then click [More] or the [Delete] button in the top-right corner of the silence details page for a silence in the Expired state.
  3. In the Delete silence pop-up, check the confirmation message and click [Delete].