[HADOOP-5152] better messaging when tasktacker cannot access userlogs

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 0.18.2
• Component/s: io
• Labels: newbie

Environment

15 node cluster
CentOS 5
2.6.18-8.el5 #1 SMP
java version "1.6.0_10-ea"

• Assignee: Unassigned
• Reporter: David O'Dell
• Created: 30/Jan/09 23:36
• Updated: 21/Jul/14 19:24

Description

When the tasktracker cannot access the userlogs directory all the tasks fail but the only message in the logs is:

2009-01-28 16:00:37,024 WARN org.apache.hadoop.mapred.TaskRunner: attempt_200901280756_0001_m_000534_1 Child Error
java.io.IOException: Task process exit with nonzero status of 1.
at org.apache.hadoop.mapred.TaskRunner.runChild(TaskRunner.java:462)
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:403)

It should write to the log what the actual problem is.