[MAPREDUCE-4012] Hadoop Job setup error leaves no useful info to users (when LinuxTaskController is used)

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.20.205.0, 1.0.0, 2.0.0-alpha
• Fix Version/s: 0.23.3, 2.0.2-alpha
• Target Version/s: 1.0.3, 0.23.3
• Assignee: Thomas Graves
• Reporter: Koji Noguchi
• Created: 14/Mar/12 22:57
• Updated: 17/Oct/13 17:50
• Resolved: 03/Apr/12 15:44

Description

When distributed cache pull fail on the TaskTracker, job webUI only shows

Job initialization failed (255)

leaving users confused.

On the TaskTracker log, there is a log with useful info

2012-03-14 21:44:17,083 INFO org.apache.hadoop.mapred.TaskController: org.apache.hadoop.security.AccessControlException: org.apache.hadoop.security.AccessControlException: 
Permission denied: user=user1, access=READ, inode="testfile":user3:users:rw-------
...
2012-03-14 21:44:17,083 INFO org.apache.hadoop.mapred.TaskController:   at org.apache.hadoop.filecache.TrackerDistributedCacheManager.downloadCacheObject(TrackerDistributedCacheManager.java:415)
...
2012-03-14 21:44:17,083 INFO org.apache.hadoop.mapred.TaskController:   at org.apache.hadoop.mapred.JobLocalizer.main(JobLocalizer.java:530)

Issue Links

• relates to: MAPREDUCE-5589 MapReduce Job setup error leaves no useful info to users (when LinuxTaskController is used)