Stable cardinality limit property otel.java.metrics.cardinality.limit #7199
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trask
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Mar 13, 2025
devurandom
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Jul 15, 2025
`otel.experimental.metrics.cardinality.limit` was changed to `otel.java.metrics.cardinality.limit` and support for the former will be removed after OpenTelemetry Java v1.51.0. References: open-telemetry/opentelemetry-java#7199
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Declarative config now has a more expressive mechanism for configuring cardinality limits, and there is no standard env var for this defined in the specification. Still, I don't think we should get rid of support for specifying cardinality limits via env vars / system properties. So let's stabilize
otel.experimental.metrics.cardinality.limitas a java-specific property with nameotel.java.metrics.cardinality.limit.