随笔分类 - 运维相关
运维
摘要：rpm -qa | grep mysql如果有服务就卸载 yum remove '软件名'wget https://repo.mysql.com//mysql80-community-release-el7-3.noarch.rpmyum -y install mysql80-community-r
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摘要：背景：阿里云服务器buffer内存30G free -h 发现buff/cache内存高 安装hcache1、wget https://silenceshell-1255345740.cos.ap-shanghai.myqcloud.com/hcache2、chmod 755 hcache && m
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