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

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Component/s: tasktracker
• Assignee: Ravi Gummadi
• Reporter: Ravi Gummadi
• Created: 01/Jun/10 09:42
• Updated: 30/Jul/14 19:53
• Resolved: 30/Jul/14 19:53

Description

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)