[MAPREDUCE-3871] Allow symlinking in LocalJobRunner DistributedCache

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.23.3, 2.0.2-alpha
• Component/s: distributed-cache
• Target Version/s: 2.0.0-alpha
• Hadoop Flags: Reviewed
• Assignee: Thomas White
• Reporter: Thomas White
• Created: 16/Feb/12 19:57
• Updated: 11/Oct/12 17:48
• Resolved: 11/Jun/12 20:40

Description

Currently the LocalJobRunner doesn't create symlinks for files in the DistributedCache. It is safe to create symlinks if files of the same name don't exist. LocalJobRunner should also delete the symlinks when the job has completed.