[jira] Created: (MAPREDUCE-1828) Job doesn't fail graciously when an invalid mapred.child.env value is specified

["Ravi Gummadi (JIRA)" <ji...@apache.org>]

Job doesn't fail graciously when an invalid mapred.child.env value is specified
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                 Key: MAPREDUCE-1828
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1828
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: tasktracker
            Reporter: Ravi Gummadi
            Assignee: Ravi Gummadi


When invalid input is given to -Dmapred.child.env=, ArrayIndexOutOfBoundsException is seen instead of giving a useful error message.

bin/hadoop jar hadoop-streaming.jar -Dmapred.child.env="X:Y" -input inp_empty -output out -mapper /bin/cat
-reducer /bin/cat

java.lang.Throwable: Child Error at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:242) Caused by:
java.lang.ArrayIndexOutOfBoundsException: 1 at
org.apache.hadoop.mapred.TaskRunner.getVMEnvironment(TaskRunner.java:571) at
org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:212)


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