Create a silence
You’ll open the silence form, set a time window, add label matchers that select which alerts to suppress, verify the affected instances, and submit.
In this milestone, you create a silence from start to finish.
Open the Silences page. In the main menu, you’ll find it under Alerting > Silences.
Click Add silence to open the silence creation form.
In the Silence start and end picker, set when the silence begins and ends. For a maintenance window, set the start to now and the end to when the work finishes.
Alternatively, set the Duration field and Grafana calculates the end time for you.
Use a duration that matches the work, for example,
2hfor a short maintenance window or1dfor a longer migration. Valid units:y,M,w,d,h,m,s.
Under Refine affected alerts, enter the label name to match in the Label field, for example,
severityorteam.Enter the matching value in the Value field, for example,
warningordatabase. The operator defaults to equals (=); change it if you need a regex or not-equals match.Only alerts whose labels match every matcher you add are silenced. The more matchers you add, the narrower the silence.
Click Add matcher to add another label matcher if you need to narrow the silence further.
Review the Affected alert instances preview below the matchers. It lists the alert instances your matchers currently select.
If the preview is empty or includes alerts you didn’t intend to silence, adjust your matchers before submitting.
Enter a Comment describing why you’re creating the silence, for example,
Database upgrade maintenance window. This helps your team understand the silence later.Click Save silence to create the silence.
Notifications for matching alerts are now suppressed until the silence expires. Evaluation continues, so you keep a record of what fired during the window.
Your silence is active. Matching alerts won’t notify anyone until the window ends, then notifications resume automatically.
You’ve created a silence from start to finish.