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https://issues.apache.org/jira/browse/HDFS-9686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15140921#comment-15140921
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Akira AJISAKA commented on HDFS-9686:
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bq.
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestStagingCleanup.java
I wrongly committed the patch and MAPREDUCE-6607 patch at the same time, so I
reverted this commit and committed only the HDFS-9686 patch. Thanks Kai for
reporting this.
> Remove useless boxing/unboxing code
> -----------------------------------
>
> Key: HDFS-9686
> URL: https://issues.apache.org/jira/browse/HDFS-9686
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: performance
> Affects Versions: 3.0.0
> Reporter: Kousuke Saruta
> Assignee: Kousuke Saruta
> Priority: Minor
> Fix For: 2.8.0
>
> Attachments: HDFS-9686.0.patch, HDFS-9686.1.patch
>
>
> There are lots of places where useless boxing/unboxing occur.
> To avoid performance issue, let's remove them.
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