thetumbled commented on code in PR #22753:
URL: https://github.com/apache/pulsar/pull/22753#discussion_r1610869813


##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/loadbalance/impl/ModularLoadManagerImpl.java:
##########
@@ -1122,6 +1126,32 @@ public void writeBrokerDataOnZooKeeper(boolean force) {
         }
     }
 
+    /**
+     * sort bundles by load and select topK bundles for each broker.
+     * @return the number of bundles selected
+     */
+    private int selectTopKBundle() {
+        bundleArr.clear();
+        bundleArr.addAll(loadData.getBundleData().entrySet());
+
+        int maxNumberOfBundlesInBundleLoadReport = pulsar.getConfiguration()

Review Comment:
   It is unworthy and weird that we introduce a new `boolean` type conf 
`enableBundleFilterForModularLoadManagerImpl` only for disabling this feature 
by default, as there are too many conf in Pulsar. 
   And if you want to introduce a new `int` type conf 
`loadBalancerMaxBundleReportForModularLoadManagerImpl` to  avoid reusing  
`loadBalancerMaxNumberOfBundlesInBundleLoadReport`, this is the original design 
in https://github.com/apache/pulsar/pull/20972, which has been discussed and 
closed.
   WDYT @dao-jun @lhotari @Technoboy- @codelipenghui @Demogorgon314 @heesung-sn 



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