???????????

???????????? ???????[ 2014/6/11 14:37:08 ] ??????????????? ????????

????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)??