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https://issues.apache.org/jira/browse/HADOOP-5958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12779822#action_12779822
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Aaron Kimball commented on HADOOP-5958:
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Steve,
Excellent question. I'm out of the office for the week, so I don't have access
to my networked resources to run that test right now. But now that you've
raised the issue, I'm concerned too. Will check on this next week.
> Use JDK 1.6 File APIs in DF.java wherever possible
> --------------------------------------------------
>
> Key: HADOOP-5958
> URL: https://issues.apache.org/jira/browse/HADOOP-5958
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Reporter: Devaraj Das
> Assignee: Aaron Kimball
> Fix For: 0.21.0
>
> Attachments: HADOOP-5958-hdfs.patch, HADOOP-5958-mapred.patch,
> HADOOP-5958.2.patch, HADOOP-5958.3.patch, HADOOP-5958.4.patch,
> HADOOP-5958.patch
>
>
> JDK 1.6 has File APIs like File.getFreeSpace() which should be used instead
> of spawning a command process for getting the various disk/partition related
> attributes. This would avoid spikes in memory consumption by tasks when
> things like LocalDirAllocator is used for creating paths on the filesystem.
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