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MapReduce >> mail # user >> Exit code 126?


I ran a very simple rowcount (HBase) MR today, and one of the tasks
failed with the status 126. Seems that there is no logs at all on the
server side. Any idea what this mean?



java.lang.Throwable: Child Error
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271)
Caused by: java.io.IOException: Task process exit with nonzero status of 126.
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258)