1、卸载
[root@node1 ~]# rpm -qa|grep mariadbmariadb-5.5.56-2.el7.x86_64 mariadb-libs-5.5.56-2.el7.x86_64 mariadb-server-5.5.56-2.el7.x86_64 [root@node1 ~]#12345
[root@node1 ~]# yum remove mariadb...Removed: mariadb.x86_64 1:5.5.56-2.el7 Dependency Removed: mariadb-server.x86_64 1:5.5.56-2.el7 Complete! [root@node1 ~]#12345678910
2、删除遗留目录
[root@node1 ~]# ls /etc/my.cnf/etc/my.cnf [root@node1 ~]# ll /var/lib/mysql/total 28700-rw-rw---- 1 mysql mysql 16384 May 5 10:31 aria_log.00000001-rw-rw---- 1 mysql mysql 52 May 5 10:31 aria_log_control-rw-rw---- 1 mysql mysql 18874368 May 5 10:31 ibdata1-rw-rw---- 1 mysql mysql 5242880 May 5 10:31 ib_logfile0-rw-rw---- 1 mysql mysql 5242880 Oct 6 2017 ib_logfile1drwx------ 2 mysql mysql 4096 Oct 6 2017 mysqldrwx------ 2 mysql mysql 4096 Oct 6 2017 performance_schema[root@node1 ~]#123456789101112
[root@node1 ~]# rm -rf /etc/my.cnf[root@node1 ~]# rm -rf /var/lib/mysql/12
3、重新安装
[root@node1 ~]# yum install -y mariadb mariadb-server[root@node1 ~]# systemctl start mariadb[root@node1 ~]# systemctl enable mariadb[root@node1 ~]# mysql_secure_installation
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