安裝percona mysql 5.7（單機_yum方式）-LIVE_FOR-51CTO博客

基礎環境：OS：Red Hat Enterprise Linux Server release 7.6 (Maipo)mysql：Percona版（5.7最新，可選mysql8）操作步驟：1、關閉防火墻修改/etc/sysconfig/selinux的配置，命令如下# sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/sysconfig/selinux關閉Selinux(強烈建議關閉)# setenforce 0關閉防火墻# systemctl stop firewalld去除開機啟動# systemctl disable firewalld2、安裝Percona 的yum信息庫到本機上# yum install https://repo.percona.com/yum/percona-release-latest.noarch.rpm3、檢查本機是否有mysql或者mariadb

# rpm -qa | grep mysql 
# rpm -qa | grep  mariadb

發現有一個庫文件mariadb-libs-5.5.41-2.el7_0.x86_64，強制刪除掉# rpm -e --nodeps mariadb-libs4、安裝percona server# yum install Percona-Server-server-57漫長的等待之后發現有個報錯：GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-Percona可能是剛剛安裝的信息庫有問題，不是最新，更新之# yum update percona-release然后再次執行安裝即可5、創建目錄及權限修改

# mkdir -p /opt/mysql/{mysql_data,mysql_log}
# chown -R mysql:mysql /opt/mysql　
# usermod -d /opt/mysql mysql

6、創建配置文件從網絡下載一個文件my.cnf，注意修改對應的目錄為我們剛剛創建的目錄7、修改啟動文件/etc/systemd/system/mysql.service

  # sed -i 's#/var/run/mysqld/mysqld.pid#/opt/mysql/mysql_log/mysqld.pid#g' /etc/systemd/system/mysql.service
  # sed -i 's#/var/run/mysqld/mysqld.pid#/opt/mysql/mysql_log/mysqld.pid#g' /usr/lib/systemd/system/mysqld.service
  # sed -i 's#LimitNOFILE = 5000#LimitNOFILE = 100000#g' /etc/systemd/system/mysql.service
  # sed -i 's#LimitNOFILE = 5000#LimitNOFILE = 100000#g' /usr/lib/systemd/system/mysqld.service

重新加載配置# systemctl daemon-reload8、啟動服務# service mysqld restart9、修改root密碼獲取mysql初始密碼

# grep -i 'password' /opt/mysql/mysql_log/error.log　

2020-03-18T04:07:12.534522Z 1 [Note] A temporary password is generated for root@localhost: ws+Pezm/r31i

# mysql -u root -p' ws+Pezm/r31i'

sql> SET PASSWORD FOR root@'localhost' = '****'; #更改root密碼10、權限賦值（運行任何IP可以root訪問DB）sql> grant all on *.* to root@'%' identified by 'your_password';sql> flush privileges;