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Cardinality explosions in OpenTelemetry gRPC Java metrics due to unbounded grpc target attribute

Cardinality explosions in OpenTelemetry gRPC Java metrics due to unbounded grpc target attribute: a task in LegoFlow-SWE (Harbor dataset). Each unique target string (e.g., service-a:8080 , service-b:9090 , …) creates a new time series. In large deployments this exhausts the cardinality budget and…

The task

Each unique target string (e.g., `service-a:8080`, `service-b:9090`, …) creates a new time series. In large deployments this exhausts the cardinality budget and makes metrics unusable.

Part of Lego-X/LegoFlow-SWE.