Hive Tutorial 7 : Hive configuration precedence order

There is a precedence hierarchy to setting properties. In the following list, lower numbers take precedence over higher numbers:
1.    The Hive SET command
2.    The command line -hiveconf option
3.    hive-site.xml
4.    hive-default.xml
5.    hadoop-site.xml (or, equivalently, core-site.xml, hdfs-site.xml, and mapred-site.xml)

6.    hadoop-default.xml (or, equivalently, core-default.xml, hdfs-default.xml, and mapred-default.xml)

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