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From Szehon Ho <>
Subject Re: Review Request 42777: HIVE-12550 : Cache and display last N completed queries in HS2 WebUI
Date Tue, 26 Jan 2016 22:26:33 GMT

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(Updated Jan. 26, 2016, 10:26 p.m.)

Review request for hive.

Bugs: HIVE-12550

Repository: hive-git


Use a Guava 'EvictingQueue' to cache finished SQLOperation info.  Bump up Guava version to
get this.  The information is saved when the SQLOperation is closed.

Also fix a small discrepancy where Elapsed Time (existing field) was comparing against lastAccessTime
, which gets updated whenever state changes and some other places.  Chaged to compare against
operation's start time.

Diffs (updated)

  common/src/java/org/apache/hadoop/hive/conf/ 97fe7bc 
  pom.xml 2066518 
  ql/src/java/org/apache/hadoop/hive/ql/ 75187cf 
  service/src/java/org/apache/hive/service/cli/operation/ 113eddf 
  service/src/java/org/apache/hive/service/cli/operation/ 92135cd 
  service/src/java/org/apache/hive/service/cli/operation/ c8a69b9 
  service/src/java/org/apache/hive/service/cli/operation/ PRE-CREATION

  service/src/resources/hive-webapps/hiveserver2/hiveserver2.jsp a91b008 



Manual testing, with screenshot attached.


Szehon Ho

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