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https://issues.apache.org/jira/browse/HADOOP-8847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13471828#comment-13471828
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Robert Joseph Evans commented on HADOOP-8847:
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One thing to be aware of when porting this to trunk is that YARN is not doing
the FileUtil.chmod. I don't think this will impact you for the windows port.
I just thought I should mention it.
> Change untar to use Java API instead of spawning tar process
> ------------------------------------------------------------
>
> Key: HADOOP-8847
> URL: https://issues.apache.org/jira/browse/HADOOP-8847
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Bikas Saha
> Assignee: Bikas Saha
> Attachments: HADOOP-8847.branch-1-win.1.patch,
> HADOOP-8847.branch-1-win.2.patch, test-untar.tar, test-untar.tgz
>
>
> Currently FileUtil.unTar() spawns tar utility to do the work. Tar may not be
> present on all platforms by default eg. Windows. So changing this to use JAVA
> API's would help make it more cross-platform. FileUtil.unZip() uses the same
> approach.
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