kill 掉所有正在运行的hadoop jobs

# get list of job's process IDs
JOB_LIST=$(hadoop job -list 2> /dev/null | grep job_ | awk '{print $1}')

# kill all jobs
for JOB in $JOB_LIST
do
        hadoop job -kill $JOB
        echo job (${JOB}) is killed now.
done