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From chinna...@huawei.com
Subject Re: Review Request: Clean up the scratch.dir (tmp/hive-root) while restarting Hive server.
Date Mon, 22 Aug 2011 18:23:15 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1481/
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(Updated 2011-08-22 18:23:15.749654)


Review request for hive.


Changes
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Fixed review comments and updated the patch.


Summary
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Now queries leaves the map outputs under scratch.dir after execution. If the hive server is
stopped we need not keep the stopped server's map oputputs. So whle starting the server we
can clear the scratch.dir. This can help in improved disk usage.

Implemented a cleanup method in HiveServer and it will trigger based on the property value
"hive.start.cleanup.scrachdir"


This addresses bug HIVE-2181.
    https://issues.apache.org/jira/browse/HIVE-2181


Diffs (updated)
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  trunk/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java 1158629 
  trunk/conf/hive-default.xml 1158629 
  trunk/service/src/java/org/apache/hadoop/hive/service/HiveServer.java 1158629 
  trunk/service/src/test/org/apache/hadoop/hive/service/TestHiveServer.java 1158629 

Diff: https://reviews.apache.org/r/1481/diff


Testing
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Added test case for this scenario.


Thanks,

chinna


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