I'm unable to ship a file with a .zip suffix to the mapper using the - file argument for hadoop streaming. I am able to ship it if I change the suffix to .zipp. Is this a bug, or perhaps has something to do with the jar file format which is used to send files to the instance?

For example, with this hadoop invocation, and local files "/tmp/ boto.zip" and "/tmp/boto.zipp" which are copies of each other:

$HADOOP_HOME/bin/hadoop jar $HADOOP_HOME/contrib/streaming/ hadoop-0.17.0-streaming.jar -mapper $KCLUSTER_SRC/testmapper.py - reducer $KCLUSTER_SRC/testreducer.py -input input/foo -output output - file /tmp/foo.txt -file /tmp/boto.zip -file /tmp/boto.zipp

I see this line in the invocation standard output:

packageJobJar: [/tmp/foo.txt, /tmp/boto.zip, /tmp/boto.zipp, /tmp/ hadoop-karl/hadoop-unjar6899/] [] /tmp/streamjob6900.jar tmpDir=null

But in the current directory of the mapper process, "boto.zip" does not exist, while "boto.zipp" does.

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