Use JDK 1.6 File APIs in DF.java wherever possible
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Key: HADOOP-5958
URL: https://issues.apache.org/jira/browse/HADOOP-5958
Project: Hadoop Core
Issue Type: Bug
Components: fs
Reporter: Devaraj Das
Fix For: 0.21.0
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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