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From "David O'Dell (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-5152) better messaging when tasktacker cannot access userlogs
Date Fri, 30 Jan 2009 23:36:59 GMT
better messaging when tasktacker cannot access userlogs
-------------------------------------------------------

                 Key: HADOOP-5152
                 URL: https://issues.apache.org/jira/browse/HADOOP-5152
             Project: Hadoop Core
          Issue Type: Improvement
          Components: io
    Affects Versions: 0.18.2
         Environment: 15 node cluster
CentOS 5
2.6.18-8.el5 #1 SMP
java version "1.6.0_10-ea"
            Reporter: David O'Dell
            Priority: Minor


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.


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