jasperjiaguo commented on code in PR #14430:
URL: https://github.com/apache/pinot/pull/14430#discussion_r1838620339


##########
pinot-server/src/main/java/org/apache/pinot/server/starter/helix/HelixInstanceDataManager.java:
##########
@@ -180,6 +181,24 @@ private void initInstanceDataDir(File instanceDataDir) {
     }
   }
 
+  @Override
+  public List<File> getConsumerDirPaths() {
+    String consumerDirPath = _instanceDataManagerConfig.getConsumerDir();
+
+    if (consumerDirPath != null) {
+      return Collections.singletonList(new File(consumerDirPath));
+    } else {
+      List<File> consumerDirs = new ArrayList<>();
+      String instanceDataDir = _instanceDataManagerConfig.getInstanceDataDir();
+      for (String tableNameWithType : getAllTables()) {
+        String dirPath = instanceDataDir + File.separator + tableNameWithType 
+ File.separator
+            + RealtimeTableDataManager.CONSUMERS_DIR;
+        consumerDirs.add(new File(dirPath));
+      }
+      return consumerDirs;

Review Comment:
   should we store return value (consumerDirs) up so that we don't calculate 
these every time? We can also add logging to it if it is calculated just once.



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