${HADOOP_HOME}/bin/hadoop job Usage: JobClient <command> <args> [-submit <job-file>] [-status <job-id>] [-counter <job-id> <group-name> <counter-name>] [-kill <job-id>] [-abort <job-id>] [-suspend <job-id> [hours]] [-recover <job-id> [-force] [-jobconf name=value] [-file local-path] [-cacheArchive]] [-set-priority <job-id> <priority>]. Valid values for priorities are: VERY_HIGH HIGH NORMAL LOW VERY_LOW [-set-map-capacity <job-id> <map-capacity>] [-set-reduce-capacity <job-id> <reduce-capacity>] [-set-map-over-capacity <job-id> <true/false>] [-set-reduce-over-capacity <job-id> <true/false>] [-events <job-id> <from-event-#> <#-of-events>] [-history <jobOutputDir>] [-list [all]] [-kill-task <task-id>] [-fail-task <task-id>] [-input-add <job-id> <input>] [-input-done <job-id>]
- -kill <job-id> kill一个job,job的最终状态是KILLED
- -kill-task <task-id> kill一个task attempt,task attempt的最终状态是KILLED,对应的task会重新启动一个task attempt计算,kill不会导致task失败
- -fail-task <task-id> fail一个task attempt,task attempt的最终状态是FAILED,如果task attempt fail超过一定次数(默认4次),对应task会失败
- -set-priority <job-id> 设置job的优先级
- -status <job-id> 获取job的状态
- -list [all] 获取作业列表,没有参数表示获取运行的作业列表,参数all表示获取所有作业列表
- -suspend <job-id> [hours], -recover <job-id> 在断点重启中介绍