Jackie-Jiang commented on code in PR #13818:
URL: https://github.com/apache/pinot/pull/13818#discussion_r1719295854


##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/startree/v2/builder/BaseSingleTreeBuilder.java:
##########
@@ -520,11 +520,22 @@ private void createForwardIndexes()
         }
       }
     } finally {
-      for (SingleValueUnsortedForwardIndexCreator dimensionIndexCreator : 
dimensionIndexCreators) {
-        dimensionIndexCreator.close();
+      for (int i = 0; i < dimensionIndexCreators.length; i++) {
+        try {
+          dimensionIndexCreators[i].close();
+        } catch (Throwable e) {
+          LOGGER.warn("Caught throwable while closing dimension index creator 
for dimension: {}",
+              _dimensionsSplitOrder[i], e);
+          throw e;

Review Comment:
   Does `close()` throw exception when the buffer size is over the integer 
bound? Should we cache the first exception to ensure all creators are closed? 
Currently if it throws exception, we will leave creators not closed



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