3schwartz commented on a change in pull request #11418:
URL: https://github.com/apache/kafka/pull/11418#discussion_r733361106



##########
File path: clients/src/main/java/org/apache/kafka/clients/NetworkClient.java
##########
@@ -1080,8 +1080,13 @@ public void handleSuccessfulResponse(RequestHeader 
requestHeader, long now, Meta
                 .collect(Collectors.toList());
             if (!missingListenerPartitions.isEmpty()) {
                 int count = missingListenerPartitions.size();
-                log.warn("{} partitions have leader brokers without a matching 
listener, including {}",
-                        count, missingListenerPartitions.subList(0, 
Math.min(10, count)));
+                if (count == 1) {

Review comment:
       I believe it would be easier to interprete if you avoid using the 
if-else block and created the log statement in one assignment using 
conditionals.
   
           String logStatement = "{} partition" + 
                   (count > 1 ? "s have leader brokers" : " has a leader 
broker") +
                   " without a matching listener, " +
                   (count > 1 ? "which is " : "including ") + "{}";
   
           log.warn(logStatement,
                   count, missingListenerPartitions.subList(0, Math.min(10, 
count)));
   
   




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