[jira] [Created] (HIVE-13285) Orc concatenation may drop old files from moving to final path

["Prasanth Jayachandran (JIRA)" <ji...@apache.org>]

Prasanth Jayachandran created HIVE-13285:
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             Summary: Orc concatenation may drop old files from moving to final path
                 Key: HIVE-13285
                 URL: https://issues.apache.org/jira/browse/HIVE-13285
             Project: Hive
          Issue Type: Bug
          Components: ORC
    Affects Versions: 2.0.0, 1.1.0, 1.2.0, 1.0.0, 0.14.0, 1.3.0, 2.1.0
            Reporter: Prasanth Jayachandran
            Assignee: Prasanth Jayachandran
            Priority: Critical


ORC concatenation uses combine hive input format for merging files. Under specific case where all files within a combine split are incompatible for merge (old files without stripe statistics) then these files are added to incompatible file set. But this file set is not processed as closeOp() will not be called (no output file writer will exist which will skip super.closeOp()). As a result, these incompatible files are not moved to final path.



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