With the continuous updates and iterations of Alibaba Cloud services, the closely related metrics are also updated. Cloud services have provided alternatives for these metrics or the metrics are to be deprecated and therefore are not recommended. Accordingly, alert rules created based on these metrics must also be adjusted to guarantee monitoring quality.
You can use the following methods for governance:
Selectively delete invalid alert rules
Confirm invalid alert rules one by one and manually delete them. For more information, see Delete one or more alert rules.
Batch delete invalid alert rules
All the alert rules that include the metrics that are not recommended are automatically deleted.