問題文
A maintenance window is planned for one cluster and the team wants the notifications suppressed, the alerts still recorded, and existing alerts cleared beforehand. Which arrangement does that?
選択肢
- Set the auto-clear duration to the length of the window; the existing alerts close themselves before it opens and the ones raised inside it close as it ends for the cluster, one alert after another.
- Deactivate the detectors for the duration and reactivate them afterwards, because that is the only way to guarantee no notification is sent and the alert history for that period is preserved for later review, and because a muting rule takes no schedule in advance of the window.
- Create a muting rule and separately mark each existing alert as resolved by hand, because clearing alerts is not part of what a muting rule can do and has to be done one alert at a time, which makes the preparation slow for a large cluster.
- Create a muting rule scoped by the cluster dimension with a schedule covering the window, and select the option to clear existing alerts matching the conditions so the team starts from a clean slate; the alerts during the window are still generated and remain visible.