[#HADOOP-5958] Use JDK 1.6 File APIs in DF.java wherever possible

Hadoop Common

Use JDK 1.6 File APIs in DF.java wherever possible

Created: 02/Jun/09 03:54 PM Updated: Saturday 03:49 AM

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Component/s:

Affects Version/s:

None

Fix Version/s:

0.22.0

Time Tracking:

Not Specified

File Attachments:

File Name	Date Attached	Attached By	Size
HADOOP-5958-hdfs.patch	2009-10-29 01:59 AM	Aaron Kimball	1 kB
HADOOP-5958-mapred.patch	2009-10-29 01:59 AM	Aaron Kimball	0.6 kB
HADOOP-5958.2.patch	2009-10-29 09:08 PM	Aaron Kimball	18 kB
HADOOP-5958.3.patch	2009-10-29 10:13 PM	Aaron Kimball	18 kB
HADOOP-5958.4.patch	2009-11-09 11:15 PM	Aaron Kimball	18 kB
HADOOP-5958.patch	2009-10-29 02:00 AM	Aaron Kimball	9 kB

Description

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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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