On Fri, Jan 29, 2010 at 2:52 PM, john li <lij...@gmail.com> wrote: > when hadoop running multi jobs concurrently, that is when hadoop is busy, > always have killed tasks in some jobs, although the jobs success finally. > > anybody tell me why?
if only "killed", don't mind it. JobTracker schedules idle TaskTrackers to complete some slow work. i.e. some slow tasks will run multiple times, only first one is success/finished, and others will be killed. -- Wang Xu Jonathan Swift - "May you live every day of your life." - http://www.brainyquote.com/quotes/authors/j/jonathan_swift.html