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https://issues.apache.org/jira/browse/HBASE-16659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15509710#comment-15509710
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Hudson commented on HBASE-16659:
--------------------------------

FAILURE: Integrated in Jenkins build HBase-Trunk_matrix #1646 (See 
[https://builds.apache.org/job/HBase-Trunk_matrix/1646/])
HBASE-16659 Use CellUtil.createFirstOnRow instead of (chenheng: rev 
c67983ebf88d449a67bccd8b213237362a4093f6)
* (edit) 
hbase-client/src/main/java/org/apache/hadoop/hbase/filter/FuzzyRowFilter.java
* (edit) 
hbase-client/src/main/java/org/apache/hadoop/hbase/filter/MultiRowRangeFilter.java
* (edit) 
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ReversedRegionScannerImpl.java
* (edit) 
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
* (edit) 
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFileScanner.java


> Use CellUtil.createFirstOnRow instead of KeyValueUtil.createFirstOnRow in 
> some places. 
> ---------------------------------------------------------------------------------------
>
>                 Key: HBASE-16659
>                 URL: https://issues.apache.org/jira/browse/HBASE-16659
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: binlijin
>            Assignee: binlijin
>            Priority: Minor
>             Fix For: 2.0.0
>
>         Attachments: HBASE-16659-master.patch, HBASE-16659-master_v2.patch, 
> HBASE-16659-master_v2.patch
>
>
> CellUtil.createFirstOnRow is more effective than 
> KeyValueUtil.createFirstOnRow, because there is no byte[] copy.
> Current in ReversedRegionScannerImpl#nextRow, to get the previous row to 
> seek, it use KeyValueUtil.createFirstOnRow which will have two copy, the 
> first copy is copy to a tmp byte[], the second copy is in KeyValue. We can 
> use CellUtil.createFirstOnRow which will have no copy.



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