Chao Sun created HIVE-16483:
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             Summary: HoS should populate split related configurations to 
HiveConf
                 Key: HIVE-16483
                 URL: https://issues.apache.org/jira/browse/HIVE-16483
             Project: Hive
          Issue Type: Bug
          Components: Spark
            Reporter: Chao Sun
            Assignee: Chao Sun


There are several split related configurations, such as {{MAPREDMINSPLITSIZE}}, 
{{MAPREDMINSPLITSIZEPERNODE}}, {{MAPREDMINSPLITSIZEPERRACK}}, etc., that should 
be populated to HiveConf. Currently we only do this for {{MAPREDMINSPLITSIZE}}.

Without these, Spark sometimes will not merge small files for file formats such 
as text.



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