Karen Coppage created HIVE-24089:
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             Summary: Run QB compaction as table directory user with 
impersonation
                 Key: HIVE-24089
                 URL: https://issues.apache.org/jira/browse/HIVE-24089
             Project: Hive
          Issue Type: Bug
            Reporter: Karen Coppage
            Assignee: Karen Coppage


Currently QB compaction runs as the session user, unlike MR compaction which 
runs as the table/partition directory owner (see 
CompactorThread#findUserToRunAs).

We should make QB compaction run as the table/partition directory owner and 
enable user impersonation during compaction to avoid any issues with temp 
directories.



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