hadoop streaming: how to see application logs?
Question: I can see all hadoop logs on my `/usr/local/hadoop/logs` path

but where can I see application level logs? for example :

mapper.py

    
    
    import logging
    
    def main():
        logging.info("starting map task now")
        // -- do some task -- //
        print statement  
    

reducer.py

    
    
    import logging
    def main():
        for line in sys.stdin:
            logging.info("received input to reducer - " + line)  
            // -- do some task -- //
            print statement
    

Where I can see `logging.info` or related log statements of my application?  
I am using `Python` and using `hadoop-streaming`

Thank you


Answer: Hadoop gathers stderr, which can be viewed on hadoop map/reduce status site.
So you can just write to stderr.

