zhangbutao commented on PR #5391:
URL: https://github.com/apache/hive/pull/5391#issuecomment-2437100002

   @Aggarwal-Raghav I did some codes debug. Found that the Tez Application 
Master has already initialize the `OrcTail`  when creating orc splits. I want 
to know if we can pass the `OrcTail`  from Tez AM to Tez Task? If ok, we can 
solve this issue by the way.
   Here i provided some related codes, maybe we can try to do some code debug 
to explore a better way to fix the issue?
   
   - Tez AM related codes: **create orc split with the orctail**
   
   
https://github.com/apache/hive/blob/13dfae1c0a7d4540f4bc5edc50bc922f0cfc83e8/ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcInputFormat.java#L1672-L1673
   
   
https://github.com/apache/hive/blob/13dfae1c0a7d4540f4bc5edc50bc922f0cfc83e8/ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcInputFormat.java#L1497-L1498
   
   
   - Tez Task related code: **get orc split**(But it can not get the orctail 
now, we can think about how to get it here?)
   
   
https://github.com/apache/hive/blob/13dfae1c0a7d4540f4bc5edc50bc922f0cfc83e8/ql/src/java/org/apache/hadoop/hive/ql/io/HiveInputFormat.java#L216-L223
   
   
https://github.com/apache/hive/blob/13dfae1c0a7d4540f4bc5edc50bc922f0cfc83e8/ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcSplit.java#L204-L205


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