I think this does it:

On Fri, Dec 7, 2012 at 10:06 AM, Oleg Zhurakousky <oleg.zhurakousky@gmail.com> wrote:

I have a simple mapper that reads a records and sends out a message as it encounters the ones it is interested in (no reducer). So no output is ever written, but it seems like a job can not be submitted unless Output Path is specified. Not a big deal to specify a dummy one, but was wondering if it could be avoided.