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

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.21.0
• Component/s: fs
• Hadoop Flags: Reviewed
• Assignee: Aaron Kimball
• Reporter: Devaraj Das
• Created: 02/Jun/09 15:54
• Updated: 24/Aug/10 20:38
• Resolved: 15/Dec/09 00:10

Description

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.