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From "Ning Zhang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HIVE-2037) Merge result file size should honor hive.merge.size.per.task
Date Wed, 09 Mar 2011 07:13:59 GMT
Merge result file size should honor hive.merge.size.per.task
------------------------------------------------------------

                 Key: HIVE-2037
                 URL: https://issues.apache.org/jira/browse/HIVE-2037
             Project: Hive
          Issue Type: Bug
            Reporter: Ning Zhang
            Assignee: Ning Zhang
         Attachments: HIVE-2037.patch

The merge job set mapred.min.split.size to the value of hive.merge.size.per.task, which roughly
equals to the output file size. However the input split size is also determined by mapred.min.split.size.per.node,
mapred.min.split.size.per.rack, and mapred.max.split.size. They should be set the same as
hive.merge.size.per.task as well.

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