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Alert Silencing

Overview

Silences are used to temporarily suppress specific alert notifications, suitable for scenarios such as known issue handling, scheduled maintenance, etc.

Proper usage can reduce noise and avoid interference; improper configuration may lead to missing critical alerts.

Configuration Details​

Silence start and end

  • ​Start Time: The effective time of silencing (supports immediate start or future time)
  • End Time: The time when the silencing is automatically turned off

Duration

  • The total duration for which the silencing rule is effective, for example, after selecting the start time, input "2h30m" to automatically calculate the end time

Refine affected alerts

By matching labels, the alerts that need to be silenced are filtered

  • Label example: alertname, instance

  • Operator example: = (exact match), =~ (regex match), != (exclude)

  • Value example: High, node1:59100

Comment, mandatory

  • Customizable, usually includes the reason for silencing and related information

Created By, mandatory

  • Customizable, usually includes the responsible person for the silencing rule

Configuration Examples​

Method 1: Quickly Silence Based on Alert Rule​

Click More --> Silence notifications on the corresponding alert rule.

The system will automatically populate the conditions matching this alert rule. Adjust the time range, comments, and other information before saving to take effect.

Method 2: Manually Create Silencing Rule​

Click Add Silence in the silencing list and configure with customized matching conditions.

Viewing and Termination​

All silencing rules can be viewed in the silencing list. To prematurely lift the silencing, click Unsilence.