chia7712 commented on PR #19749:
URL: https://github.com/apache/kafka/pull/19749#issuecomment-2889098456

   > For num-partitions, there is partition-count. We need to check which one 
is correct in the code.
   
   There's a discrepancy in the naming of the partition configuration. The code 
uses `num-partitions`, while KIP-848 and the documentation use 
`partition-count`.
   
   
https://github.com/apache/kafka/blob/6596ba3a783c91da2687aaceda91be2510321a60/coordinator-common/src/main/java/org/apache/kafka/coordinator/common/runtime/CoordinatorRuntimeMetricsImpl.java#L44
   
   Since KIP-848 has already been released, the more suitable approach would be 
to modify the documentation to use num-partitions to align with the current 
production code, rather than changing the code itself.
   
   @YutaLin Please address @dajac comments. the `p95` should be added to the 
existent items in the table. for example
   
   ```
       <tr>
         <td>Event Queue Time (Ms)</td>
         
<td>kafka.server:type=group-coordinator-metrics,name=event-queue-time-ms-[max|p50|p95|p99|p999]</td>
         <td>The time that an event spent waiting in the queue to be 
processed</td>
       </tr>
   ```


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