What command allows the configuration of default tags attached to metrics?

The command to configure default tags attached to metrics is actually tied to the setting called DD_CHECKS_TAG_CARDINALITY. This environment variable is used to control how many unique tags can be attached to a metric in Datadog, essentially helping to define the maximum cardinality of tags. By setting a cardinality limit, users can organize and manage the tags applied to the metrics more effectively, ensuring that metrics are categorized properly for analysis and monitoring.

This is crucial for avoiding issues with excessive tag cardinality, which can lead to performance and scalability problems within Datadog. Therefore, the proper management of tag cardinality through this specific setting directly facilitates the organization and application of default tags, aligning closely with metric tracking best practices within the platform.

The choices regarding tag addition or configuration imply a more straightforward operation, but they do not specifically address the underlying cardinality control needed for effectively managing tags in Datadog. Consequently, DD_CHECKS_TAG_CARDINALITY stands out as the precise environment variable necessary for configuring tags systematically.