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| Name | Type | Description |
|---|---|---|
| kafka.server:type=MetadataLoader,name=FinalizedLevel,featureName=X | Integer | The finalized value of the feature level for a feature named "X". |
| kafka.server:type=NodeMetricsnode-metrics,name=MinimumSupportedLevel,featureNameminimum-supported-level,feature-name=X | Integer | The minimum supported feature level for a feature named "X" on the node. |
kafka.server:type=NodeMetricsnode-metrics,name=MaximumSupportedLevel,featureNamemaximum-supported-level,feature-name=X | Integer | The maximum supported feature level for a feature named "X" on the node. |
The FinalizedLevel metric will report the finalized feature level for each production feature. If the feature level is not set, the metric will return a value of 0, since that means the feature is not enabled. This metric should still reside in the MetadataLoader metric group because its value is derived from the metadata log's feature records.
MinimumSupportedLevelminimum-supported-level and MaximumSupportedLevel maximum-supported-level are metrics whose values are dependent only on the software version being run, so it seems appropriate to define a new metric type to house these sorts of metrics going forward (release version, commit hash, etc.).
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