Choose and fix metric labels

The most important labeling rule and the values to never use as metric labels

Three questions to ask before adding a label to a metric

Cardinality problems usually enter a stack at ingestion setup

Filter series with relabeling rules and enforce policy at a gateway

Adaptive Metrics reduces cardinality without reinstrumenting anything

Hands-on practice reviewing Adaptive Metrics recommendations

Documentation and community links for metric label control and Adaptive Metrics