Mickael Maison created KAFKA-17027:
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Summary: Inconsistent casing in Selector metrics tags
Key: KAFKA-17027
URL: https://issues.apache.org/jira/browse/KAFKA-17027
Project: Kafka
Issue Type: Improvement
Components: core, metrics
Reporter: Mickael Maison
When creating metric tags for a Selector instance, we use "broker-id" in
ControllerChannelManager, BrokerBlockingSender and ReplicaFetcherBlockingSend
but we use "BrokerId" in NodeToControllerChannelManagerImpl.
Not only these casing are inconsistent for metrics tags for the same component
(Selector) but it looks like neither match the casing the use for other broker
metrics!
We seem to always use lower camel case for tags for broker metrics. For
example, we have "networkProcessor", "clientId", "delayedOperation",
"clientSoftwareName", "clientSoftwareVersion" as tags on other metrics.
Fixing this will require a KIP.
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