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changes.mady.by.user aarti gupta

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  • This KIP proposes the addition of a RecordLevel in Sensor.java. This associates each sensor with a record level and the metrics and computations associated with the sensor are recorded or calculated only if the metric config of the client requires these metrics to be recorded. For example, a sensor associated with a RecordLevel.DEBUG record level will only record metrics, (and correspondingly compute the time.milliseconds or nanoseconds if required by its metrics), if the client config for metric record levels is set to DEBUG. Note that the sensor will still be registered and polled by any reporters, however the expensive part of updating its metrics will not be done. This provides a mechanism for clients to toggle metric granularity without a change to individual sensors, and we do not perform unnecessary intensive computations associated on metrics which must not be recorded.

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