Re: [PR] KAFKA-17239: Kafka admin client doesn't report node request-latency metrics [kafka]

[via GitHub]

xijiu commented on PR #16832:
URL: https://github.com/apache/kafka/pull/16832#issuecomment-2275465306

   I have writen a junit test to invoke admin client:
   ```
   @Test
   public void test() throws Exception {
       AdminClient sourceAdminClient = 
AdminClient.create(getCommonProperties());
       for (int i = 0; i < Integer.MAX_VALUE; i++) {
           ListTopicsResult listTopicsResult = sourceAdminClient.listTopics();
           System.out.println("waiting");
           Thread.sleep(5000);
       }
   
       synchronized (KafkaAdminClient.class) {
           KafkaAdminClient.class.wait();
       }
   }
   ```
   
   and I open the JMX window by `jconsole` command, then observing changes in 
related attributes
   
   before the modification:
   
![image](https://github.com/user-attachments/assets/efb88a9c-b2ff-4113-8121-2a3acfd658ea)
   we find the node latency is NaN
   
   after the modification:
   
![image](https://github.com/user-attachments/assets/a696ad87-f110-416f-a843-f16a1cbc3eef)
   we have successfully obtained the relevant attributes


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