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https://issues.apache.org/jira/browse/HADOOP-14407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16013830#comment-16013830
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Steve Loughran commented on HADOOP-14407:
-----------------------------------------
(I wouldn't worry about trailing whitespace...that's something whoever commits
it needs to do)
git alias for a "git apx" command to do the merge
{code}
alias.apx=apply -3 --verbose --whitespace=fix
{code}
> DistCp - Introduce a configurable copy buffer size
> --------------------------------------------------
>
> Key: HADOOP-14407
> URL: https://issues.apache.org/jira/browse/HADOOP-14407
> Project: Hadoop Common
> Issue Type: Improvement
> Components: tools/distcp
> Affects Versions: 2.9.0
> Reporter: Omkar Aradhya K S
> Assignee: Omkar Aradhya K S
> Fix For: 2.9.0, 3.0.0-alpha3
>
> Attachments: HADOOP-14407.001.patch, HADOOP-14407.002.patch
>
>
> Currently, the RetriableFileCopyCommand has a fixed copy buffer size of just
> 8KB. We have noticed in our performance tests that with bigger buffer sizes
> we saw upto ~3x performance boost. Hence, making the copy buffer size a
> configurable setting via the new parameter <copybuffersize>.
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