Extra whitespace in mapred.child.java.opts breaks JVM initialization
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Key: MAPREDUCE-2472
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2472
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: task-controller
Affects Versions: 0.20.2, 0.22.0
Reporter: Todd Lipcon
Fix For: 0.22.0
When creating taskjvm.sh, we split mapred.child.java.opts on " " and then
create a quoted argument for each of those results. So, if you have an extra
space anywhere in this configuration, you get an argument '' in the child
command line, which the JVM interprets as an empty class name. This results in
a ClassNotFoundException and the task cannot run.
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