[HDFS-5825] Use FileUtils.copyFile() to implement DFSTestUtils.copyFile()

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.3.0
• Target Version/s: 2.3.0
• Hadoop Flags: Reviewed
• Assignee: Haohui Mai
• Reporter: Haohui Mai
• Created: 23/Jan/14 22:18
• Updated: 24/Feb/14 20:57
• Resolved: 27/Jan/14 19:04

Description

DFSTestUtils.copyFile() is implemented by copying data through FileInputStream / FileOutputStream. Apache Common IO provides FileUtils.copyFile(). It uses FileChannel which is more efficient.

This jira proposes to implement DFSTestUtils.copyFile() using FileUtils.copyFile().