I am trying to execute the command below on cloudera hadoop, but it runs into problem and I am getting the error message.  

Not sure if its a bug or I have done something wrong.  

Any information would be much appreciated.

```
 hadoop jar /usr/lib/hadoop-mapreduce/hadoop-streaming.jar -files /home/cloudera/mapper.py /home/cloudera/reducer.py -mapper "python mapper.py" -reducer "python reducer.py" -input /user/cloudera/test_file -output /user/cloudera/wc_output01

```

error message:

> 
> Found 1 unexpected arguments on the command line [/home/cloudera/reducer.py]  
> 
>  Try -help for more information
>  Streaming Command Failed!
> 
> 
>