Print out go to the task logs. You can see those in the log directory on the tasktracker nodes or through the jobtracker web GUI.
-Joey On Sep 26, 2011, at 19:47, Arko Provo Mukherjee <arkoprovomukher...@gmail.com> wrote: > Hi, > > I am writing some Map Reduce programs in pseudo-distributed mode. > > I am getting some error in my program and would like to debug it. > > For that I want to embed some print statements in my Map / Reduce. > > But when I am running the mappers, the prints doesn't seem to show up in the > terminal. > > Does the mappers / reducers redirect the prints to some files or are they > suppressed or it is a problem with my program? > > Many thanks in advance! > > Thanks & regards > Arko