python-micrometer-cardinality-control

Features and purpose

Prevent OutOfMemoryError from unbounded metric tags by implementing cardinality limits. Use when adding tags to Micrometer metrics, normalizing URIs or IDs to bounded categories, monitoring metric explosion, or avoiding high-cardinality fields like user IDs and request IDs. Critical for production microservices in GKE with cost-sensitive monitoring backends.

Quick start

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