mumrah commented on code in PR #14028:
URL: https://github.com/apache/kafka/pull/14028#discussion_r1266763142


##########
metadata/src/main/java/org/apache/kafka/controller/metrics/ControllerMetadataMetrics.java:
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@@ -117,6 +120,15 @@ public Integer value() {
                 return (int) zkMigrationState();
             }
         }));
+
+        if (zkMigrationEnabled) {

Review Comment:
   We actually want this one reported in all cases. For de-novo KRaft clusters, 
this will be 0 (never migrated) which will let us distinguish from clusters 
which have a completed a migration (3 for post-migration). We can remove this 
metric in 4.0 once ZK and all the migration code is removed



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