org.apache.hadoop.mapred.TaskController

Exception #2943872

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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}

via Unknown by Koji Noguchi, 5 months ago

Stack trace

org.apache.hadoop.mapred.TaskController
	at org.apache.hadoop.mapred.JobLocalizer$3.run(JobLocalizer.java:534)

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