Hadoop-yarn命令

最新推荐文章于 2025-07-14 01:22:29 发布

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本文详细介绍了YARN命令的使用方法，包括资源管理、节点管理、应用管理和日志提取等核心功能。通过实例展示了如何查看运行状态的任务、杀死特定任务及提取相关日志，为Hadoop集群的运维提供了实用指南。

一. yarn命令

[ruoze@rzdata001 ~]$ which yarn
~/app/hadoop/bin/yarn
[ruoze@rzdata001 ~]$

yarn -help yarn查看帮助

[ruoze@rzdata001 ~]$ yarn -help
Usage: yarn [--config confdir] COMMAND
where COMMAND is one of:
  resourcemanager -format-state-store   deletes the RMStateStore
  resourcemanager                       run the ResourceManager
                                        Use -format-state-store for deleting the RMStateStore.
                                        Use -remove-application-from-state-store <appId> for 
                                            removing application from RMStateStore.
  nodemanager                           run a nodemanager on each slave
  timelineserver                        run the timeline server
  rmadmin                               admin tools
  version                               print the version
  jar <jar>                             run a jar file
  application                           prints application(s)
                                        report/kill application
  applicationattempt                    prints applicationattempt(s)
                                        report
  container                             prints container(s) report
  node                                  prints node report(s)
  queue                                 prints queue information
  logs                                  dump container logs
  classpath                             prints the class path needed to
                                        get the Hadoop jar and the
                                        required libraries
  daemonlog                             get/set the log level for each
                                        daemon
  top                                   run cluster usage tool
 or
  CLASSNAME                             run the class named CLASSNAME

Most commands print help when invoked w/o parameters.
[ruoze@rzdata001 ~]$

常用如下：

yarn application 查看运行状态的任务，kill任务

yarn application -appStates ACCEPTED -list | awk -F "[@\t]" '{print $1,$4,$5,$6,$8,$2}'  |grep username
yarn application -appStates RUNNING -list | awk -F "[@\t]" '{print $1,$4,$5,$6,$8,$2}'  |grep username| grep  1545793104252_12911737

yarn application -kill application_1545793104252_123456789

yarn logs 提取相关日志

yarn logs -applicationId application_1566295658573_11041748 > ./job.log