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From "Alexander Kolbasov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-17953) Metrics should move to destination atomically
Date Wed, 01 Nov 2017 00:48:00 GMT
Alexander Kolbasov created HIVE-17953:
-----------------------------------------

             Summary: Metrics should move to destination atomically
                 Key: HIVE-17953
                 URL: https://issues.apache.org/jira/browse/HIVE-17953
             Project: Hive
          Issue Type: Bug
          Components: Hive
    Affects Versions: 3.0.0
            Reporter: Alexander Kolbasov
            Assignee: Alexander Kolbasov


HIVE-17563 reimplemented metrics using native nio interfaces. It used the assumption that{{Files.move()}}
is atomic operation. It turns out that by default it isn't, unless {{ATOMIC_MOVE}} option
is specified. Otherwise the destination file is unlinked and then the source file is copied.

This may cause test failure since the file may be temporarily unavailable.



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