????1 ??????

????1.1 ???????

????????????????????????????????????????case????????????????????????????????????case??????????У????????????С????????????????????ci???????????????????????????л??????????????????????

????Hadoop??????????з????????????????????????????????????У?????????????У???????Ч??????;????hadoop?????????????????????????????????????????????????????????????????л???????????

????1.2 ???????????

??????????????hadoop???????????????????Hadoop??????????????з????????????????hadoop?г??????????????????????????????????cpu????????????????????????????hadoop?????????д???????????

????1.3 ???????

??????apache????????????????

????Mapreduce ??hadoop???????????map?????reduce??????ɡ?

????Jobtracker ??hadoop????????????

????Tasktracker ??hadoop????????????

????Slot(??λ) ??tasktracker??С???????????????λ?????????map?????????????????tasktracker????λ????????????cpu???????????????”????-1”??

????<2 ??????????з???

????2.1 ???????????????????

?????????????????????5??????????????

????1??lib????????????????lib??????????ò????????????lib??

????2?????????????????????????????????????????????????server???????

????3??case???????svn????case?????????е?case??

????4??case???С?

????5????????檔

??????????????е????????????????????????????case???????У??????Ч???л?????cpu???????????????????????????8??16G???????????case?????cpu??????10%?????????1G?????????????????????????????6??case???л??????Ч?????????????

????2.2 ????????????????????е????

???????????????????輰??????????????????п??????????????????????????????????????lib????????????????????????С??????????з????

???????????????????????Case??м????????????????????????????????????case???????б?“????????????????????й???????????????????????????????????????????????case???????????л????????

????????????????case????????????仯(6λ????????caseid)??