I didnt' seem to find the answer to this question on the website and the
list, I apologize for posting the question again if it is already out there
somewhere.
I have a job which just wants to take advantage of the sorting function of
reduce task, so no mapping is required. I am wondering if hadoop allows to
run a job without running map . If it does, how to do it? and if it
doesn't, could this be a reasonable feature to have?
I have successfully run only map without reduce by setting reduce task
number to zero and I was trying to do the similar thing by setting map task
to zero and it didn't seem to work or did I miss sth fundmental?
Eric Zhang
Vespa content @Yahoo!
Work: 408-349-2466
