sayantanu-dey commented on a change in pull request #11703:
URL: https://github.com/apache/kafka/pull/11703#discussion_r790776516



##########
File path: 
streams/src/main/java/org/apache/kafka/streams/state/internals/MeteredKeyValueStore.java
##########
@@ -171,42 +169,24 @@ private void registerMetrics() {
     @Deprecated
     private void initStoreSerde(final ProcessorContext context) {
         final String storeName = name();
-        final String changelogTopic = 
ProcessorContextUtils.changelogFor(context, storeName);
-        final String prefix = getPrefix(context.appConfigs(), 
context.applicationId());
+        final String changelogTopic = 
ProcessorContextUtils.changelogFor(context, storeName, Boolean.FALSE);

Review comment:
       Hi, after going through the code I realized that the classes like 
CachingWindowStore and InMemoryTimeOrderedKeyValueBuffer always need to create 
a new topic whereas the classes MeteredXYZStore have a null checking code flow.
   As there are two types of flow. So, I thought to have a bool variable 
explicitly to have both flows in the same function. 




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