[MAPREDUCE-103] The TaskTracker's shell environment should not be passed to the children.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: security
• Assignee: Unassigned
• Reporter: Owen O'Malley
• Created: 16/Jun/09 20:46
• Updated: 22/Jul/14 21:33
• Resolved: 22/Jul/14 21:33

Description

HADOOP-2838 and HADOOP-5981 added support to make the TaskTracker's shell environment available to the tasks. This has two problems:
1. It makes the task tracker's environment part of the interface to the task, which is fairly brittle.
2. Security code typically only passes along whitelisted environment variables instead of everything to prevent accidental leakage from the administrator's account.