[MAPREDUCE-807] Stray user files in mapred.system.dir with permissions other than 777 can prevent the jobtracker from starting up.

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 0.20.1
• Component/s: jobtracker

Release Note

The JobTracker tries to delete the mapred.system.dir when it is starting up (with the job recovery disabled). The fix provided by this jira is that JobTracker will fail (bail out) with AccessControlException if it fails to delete files/directories in mapred.system.dir due to access control issues.

• Assignee: Amar Kamat
• Reporter: Amar Kamat
• Created: 27/Jul/09 06:15
• Updated: 24/Aug/09 12:22
• Resolved: 24/Aug/09 11:20

Description

With restart disabled, the jobtracker does a rm -rf of the mapred.system.dir. If the mapred.system.dir contains user files with permissions other than 777 then the jobtracker gets stuck in a loop trying to delete the mapred.system.dir (and each time failing with AccessControlException). The JobTracker admin has to manually cleanup the mapred.system.dir if this happens.