hadoop报错：没有那个文件或目录

使用myhadoop.sh脚本时出错：

解决方案：

• 删掉haoop安装目录下 /opt/module/hadoop-3.3.0/etc/hadoop/workers 文件里面的localhost
• 保存后可成功运行脚本

附上：myhadoop.sh（实现hadoop集群快速启停）

#!/bin/bashif[$#-lt1]thenecho"No Args Input..."exit;ficase$1in"start")echo" =================== 启动 hadoop 集群 ==================="echo" --------------- 启动 hdfs ---------------"ssh hadoop102 "/opt/module/hadoop-3.3.0/sbin/start-dfs.sh"echo" --------------- 启动 yarn ---------------"ssh hadoop103 "/opt/module/hadoop-3.3.0/sbin/start-yarn.sh"echo" --------------- 启动 historyserver ---------------"ssh hadoop102 "/opt/module/hadoop-3.3.0/bin/mapred --daemon start 
historyserver";;"stop")echo" =================== 关闭 hadoop 集群 ==================="echo" --------------- 关闭 historyserver ---------------"ssh hadoop102 "/opt/module/hadoop-3.3.0/bin/mapred --daemon stop 
historyserver"echo" --------------- 关闭 yarn ---------------"ssh hadoop103 "/opt/module/hadoop-3.3.0/sbin/stop-yarn.sh"echo" --------------- 关闭 hdfs ---------------"ssh hadoop102 "/opt/module/hadoop-3.3.0/sbin/stop-dfs.sh";;
*)echo"Input Args Error...";;esac