Thanks Namikaze! Another question:
New tasks in hadoop always have higher priority than speculative tasks. Does anyone know how and where I can change this priority? Thanks, Sultan On Thu, Dec 3, 2015 at 7:46 AM, Namikaze Minato <lloydsen...@gmail.com> wrote: > I think you are looking for mapreduce.reduce.speculative > Be careful, for some reason, this fell into my spam folder. > > Regards, > LLoyd > > On 3 December 2015 at 01:05, Sultan Alamro <sultan.ala...@gmail.com> > wrote: > > Hi there, > > > > I have been looking at the hadoop source code 2.6.0 trying to understand > the > > low level details and how the framework is actually working. > > > > I have a simple idea and I am trying to figure out where and how the idea > > can be implemented. The idea can be described in one sentence: "Running > > multiple copies of each task". However, implementing the idea is not as > > simple as I think. > > > > What I am aware of is that I only need to modify a few classes. But, > which > > classes? > > > > I just need someone to guide me to the right direction. > > > > > > Best, > > Sultan >
