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From "Aaron Kimball (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5958) Use JDK 1.6 File APIs in DF.java wherever possible
Date Sat, 28 Nov 2009 07:01:20 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5958?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Aaron Kimball updated HADOOP-5958:

    Attachment: HADOOP-5958.6.patch

new patch, fixes javac warning. Despite hudson reporting "-1 core tests", there wasn't a core
test failure in the actual test report (bug in Hudson script?)

> 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: 0.22.0
>         Attachments: HADOOP-5958-hdfs.patch, HADOOP-5958-mapred.patch, HADOOP-5958.2.patch,
HADOOP-5958.3.patch, HADOOP-5958.4.patch, HADOOP-5958.5.patch, HADOOP-5958.6.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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