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https://issues.apache.org/jira/browse/HIVE-3706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13498207#comment-13498207
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Hudson commented on HIVE-3706:
------------------------------
Integrated in Hive-trunk-h0.21 #1798 (See
[https://builds.apache.org/job/Hive-trunk-h0.21/1798/])
HIVE-3706 getBoolVar in FileSinkOperator can be optimized
(Kevin Wilfong via namit) (Revision 1409691)
Result = FAILURE
namit : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1409691
Files :
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/FileSinkOperator.java
> getBoolVar in FileSinkOperator can be optimized
> -----------------------------------------------
>
> Key: HIVE-3706
> URL: https://issues.apache.org/jira/browse/HIVE-3706
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Affects Versions: 0.10.0
> Reporter: Kevin Wilfong
> Assignee: Kevin Wilfong
> Fix For: 0.10.0
>
> Attachments: HIVE-3706.1.patch.txt
>
>
> There's a call to HiveConf.getBoolVar in FileSinkOperator's processOp method.
> In benchmarks we found this call to be using ~2% of the CPU time on simple
> queries, e.g. INSERT OVERWRITE TABLE t1 SELECT * FROM t2;
> This boolean value, a flag to collect the RawDataSize stat, won't change
> during the processing of a query, so we can determine it at initialization
> and store that value, saving that CPU.
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