Akshat-Jain commented on code in PR #16328:
URL: https://github.com/apache/druid/pull/16328#discussion_r1581724648


##########
server/src/main/java/org/apache/druid/query/lookup/LookupReferencesManager.java:
##########
@@ -373,9 +376,24 @@ private void takeSnapshot(Map<String, 
LookupExtractorFactoryContainer> lookupMap
     }
   }
 
-  private void loadAllLookupsAndInitStateRef()
+  /**
+   * Load a set of lookups based on the injected value in {@link 
DataSourceTaskIdHolder#getLookupLoadingSpec()}.
+   */
+  private void loadLookupsAndInitStateRef()
   {
-    List<LookupBean> lookupBeanList = getLookupsList();
+    LookupLoadingSpec lookupLoadingSpec = 
lookupListeningAnnouncerConfig.getLookupLoadingSpec();
+    List<LookupBean> lookupBeanList;
+    if (lookupLoadingSpec.getLookupLoadingMode() == 
LookupLoadingSpec.LookupLoadingMode.NONE) {
+      lookupBeanList = Collections.emptyList();

Review Comment:
   Makes sense.
   I'll keep it as empty list to keep things easier to understand, and update 
the next if-else to:
   ```
   if (lookupBeanList != null && !lookupBeanList.isEmpty()) {
         startLookups(lookupBeanList);
       }
   ```



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