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修改完ifcfg-ens33 文件之后，通过service network restart重启网卡的时候报错如下：解决方案： 禁用NetworkManager 1. systemctl stop NetworkManager 2. systemctl disable Netwo...

当通过 ssh-copy-id -i ~/.ssh/id_rsa.pub root@IP，命令配置免密登陆的时候出现如下问题：/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"/usr/bin/ssh-copy-id: INFO: attempting t...

-- 昨夜西风凋碧树，独上高楼，望尽天涯路1:查看防火状态systemctl status firewalldservice iptablesstatus2:暂时关闭防火墙systemctl stop firewalldservice iptablesstop3:永久关闭防火墙...

-- 昨夜西风凋碧树，独上高楼，望尽天涯路问题描述通过 spark-submit 执行 spark程序读取 hive 中数据的时候报错执行命令为：spark-submit --class com.demo1.HiveContextDemo --master spark://had...