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Date: Sat, 28 Nov 2009 07:01:20 +0000 (UTC)
From: "Aaron Kimball (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-5958) Use JDK 1.6 File APIs in DF.java
 wherever possible
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     [ 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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