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From "Koji Noguchi (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-4012) Hadoop Job setup error leaves no useful info to users (when LinuxTaskController is used)
Date Wed, 14 Mar 2012 22:58:39 GMT
Hadoop Job setup error leaves no useful info to users (when LinuxTaskController is used)
----------------------------------------------------------------------------------------

                 Key: MAPREDUCE-4012
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4012
             Project: Hadoop Map/Reduce
          Issue Type: Bug
    Affects Versions: 1.0.0, 0.20.205.0
            Reporter: Koji Noguchi
            Priority: Minor


When distributed cache pull fail on the TaskTracker, job webUI only shows 
{noformat}
Job initialization failed (255)
{noformat}
leaving users confused.  

On the TaskTracker log, there is a log with useful info 
{noformat}
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)
{noformat}

	

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