[GitHub] [carbondata] jackylk commented on a change in pull request #3421: [CARBONDATA-3557] Support write Flink streaming data to Carbon

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jackylk commented on a change in pull request #3421: [CARBONDATA-3557] Support write Flink streaming data to Carbon
URL: https://github.com/apache/carbondata/pull/3421#discussion_r339382889
 
 

 ##########
 File path: core/src/main/java/org/apache/carbondata/core/indexstore/blockletindex/BlockDataMap.java
 ##########
 @@ -635,8 +637,12 @@ protected short getBlockletNumOfEntry(int index) {
       // dummy value
       return 0;
     } else {
-      return ByteBuffer.wrap(getBlockletRowCountForEachBlock()).getShort(
-          index * CarbonCommonConstants.SHORT_SIZE_IN_BYTE);
+      final byte[] bytes = getBlockletRowCountForEachBlock();
+      if (bytes.length == 0) {
+        return 0;
 
 Review comment:
   please add comment

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