MarvinCai commented on a change in pull request #9302:
URL: https://github.com/apache/pulsar/pull/9302#discussion_r563418250



##########
File path: 
pulsar-client-admin/src/main/java/org/apache/pulsar/client/admin/Topics.java
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@@ -764,10 +766,11 @@ default void delete(String topic, boolean force) throws 
PulsarAdminException {
      * @throws PulsarAdminException
      *             Unexpected error
      */
-    TopicStats getStats(String topic, boolean getPreciseBacklog) throws 
PulsarAdminException;
+    TopicStats getStats(String topic, boolean getPreciseBacklog,

Review comment:
       @zymap 
   From what I've seen, this is only used by Admin CLI 
([CmdTopics.java](https://github.com/apache/pulsar/blob/master/pulsar-client-tools/src/main/java/org/apache/pulsar/admin/cli/CmdTopics.java#L483-L490)),
 which provides default value <false>. for all needed parameters, e.g. 
getPreciseBacklog and subscriptionBacklogSize. And there's another default 
implementation of [TopicStats getStats(String 
topic)](https://github.com/apache/pulsar/blob/master/pulsar-client-admin/src/main/java/org/apache/pulsar/client/admin/Topics.java#L769-L771)
 which is used in some other places, it also has default value <false> provided 
for getPreciseBacklog and subscriptionBacklogSize. 
   So it shouldn't create compatibility issue for users. 




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