-libjars with streaming does not create symlink in the cwd of task
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Key: MAPREDUCE-3122
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3122
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: contrib/streaming
Affects Versions: 0.20.205.0
Reporter: Ramya Sunil
When libjars option is used with streaming, the symlink to the jar file is not
created in the working dir of the task. Any map/reduce tasks which uses this
jar fails with NoClassDefFoundError
For e.g:
$ hadoop jar hadoop-streaming.jar -libjars /home/ramya/HelloWorld.jar -input
input.txt -output Out -mapper "mapper.sh" -reducer NONE -file
/home/ramya/mapper.sh
$ cat /home/ramya/mapper.sh
#!/bin/sh
cat &> /dev/null
java -cp HelloWorld.jar HelloWorld
$ java -cp /home/ramya/HelloWorld.jar HelloWorld
Hello World
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