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  1. Hive
  2. HIVE-19090

Running concatenate on ORC tables either increase or decrease the number of files depends on the order of file being picked

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: ORC
    • Labels:
      None

      Description

      I ran concatenate 2 times without changing any config

      For the 1st run, 14 files merged to 8 files

      For the 2nd run, 8 files expanded to 10 files

      From logs i could see Input files are same, whereas output splits from CombineHiveInputFormat are varying depending upon the file being picked first.

       

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            • Assignee:
              prasanth_j Prasanth Jayachandran
              Reporter:
              nareshpr Naresh P R
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              Dates

              • Created:
                Updated: