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卸载:Ubuntu 20.04上安装和卸载MySQL 8.0 - 简书 (jianshu.com)https://www.jianshu.com/p/27b6862365ae
或Hive之MySQL安装与卸载_hive卸载-CSDN博客https://blog.csdn.net/fengjinghong/article/details/109637295Hive卸载重装_卸载hive-CSDN博客https://blog.csdn.net/m0_55212193/article/details/125777598
重装:Hive 3.x 安装部署详细教程,每一步清晰明了 - 掘金 (juejin.cn)https://juejin.cn/post/6996657570672803847
切记:启动Hive前要先启动hadoop和mysql ,否则会报错!
语句:启动与关闭hadoop
start-all.sh启动进程
stop-all.sh关闭进程
启动与关闭mysql
service mysql start service mysql stop
查看mysql状态(listen代表正常启动/工作中)
sudo netstat -tap | grep mysql
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