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https://reviews.apache.org/r/7848/
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Review request for hive.


Description
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To make testing issues like HIVE-3590 convenient, we can implement a UDF to 
keep hive session alive for a given time. The patch introduce a new UDF sleep() 
which does this without introducing any data/load to cluster.


This addresses bug HIVE-3666.
    https://issues.apache.org/jira/browse/HIVE-3666


Diffs
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http://svn.apache.org/repos/asf/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/FunctionRegistry.java
 1405251 
  
http://svn.apache.org/repos/asf/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDFSleep.java
 PRE-CREATION 

Diff: https://reviews.apache.org/r/7848/diff/


Testing
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have tested it with Hive CLI and Hive Server session, and it can keep them 
alive by the given seconds


Thanks,

Johnny Zhang

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