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https://issues.apache.org/jira/browse/HADOOP-12974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15517567#comment-15517567
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Wei-Chiu Chuang commented on HADOOP-12974:
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Thanks [~eclark] for the patch. I reviewed it and I think it's almost ready.
Here's my comment just for reference:
* So DFCachingGetSpaceUsed doesn't really use unix df to get disk usage.
Instead, it uses Java's File class API.
* Also, the interval parameter is not used.
* The DF object in DFCachingGetSpaceUsed can be made {{final}}.
> Create a CachingGetSpaceUsed implementation that uses df
> --------------------------------------------------------
>
> Key: HADOOP-12974
> URL: https://issues.apache.org/jira/browse/HADOOP-12974
> Project: Hadoop Common
> Issue Type: Sub-task
> Affects Versions: 2.9.0
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HADOOP-12974v0.patch, HADOOP-12974v1.patch,
> HADOOP-12974v2.patch, HADOOP-12974v3.patch, HADOOP-12974v4.patch,
> HADOOP-12974v5.patch, HADOOP-12974v6.patch
>
>
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