查看当前hadoop正在执行的jobs: hadoop job -list
JobId State StartTime UserName Priority SchedulingInfo
job_201212111628_11166 1 1375083632268 dbs NORMAL NA
job_201212111628_11219 1 1375280297644 dbs NORMAL NA
杀掉job：
hadoop job -kill job_201212111628_11166
Killed job job_201212111628_11166