centos7 MariaDB 升级到最新版本

1.创建/etc/yum.repos.d/MariaDB.repo文件，下面以 10.0 版为例

[mariadb]

name = MariaDB

baseurl = http://yum.mariadb.org/10.0/centos6-amd64/

gpgkey = https://yum.mariadb.org/RPM-GPG-KEY-MariaDB

gpgcheck = 1

2.关闭并卸载旧版本的mariadb，安装新版本的mariadb。

systemctl stop mariadb

yum remove mariadb-server mariadb mariadb-libs

yum clean all

yum install MariaDB-server MariaDB-client

3.自定义数据目录和服务端口，移除默认的数据目录，创建新的数据目录。

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rm -rf /var/lib[mysql

mkdir /var/data/db/mariadb

4.修改配置文件/etc/my.cnf.d/mysql-clients.cnf，重点是[client]，其他的可以参考

[client]

port        = 3307

socket      = /var/data/db/mariadb/mysql.sock

[mysql]

no-auto-rehash

[mysqldump]

quick

max_allowed_packet = 64M

[myisamchk]

key_buffer_size = 128M

sort_buffer_size = 128M

read_buffer = 2M

write_buffer = 2M

[mysqlhotcopy]

interactive-timeout

5.修改配置文件/etc/my.cnf.d/server.cnf，这里的性能参数来自my-large.ini文件

[mysqld]

port            = 3307

datadir         = /var/data/db/mariadb

socket          = /var/data/db/mariadb/mysql.sock

skip-external-locking

key_buffer_size = 256M

max_allowed_packet = 64M

table_open_cache = 256

sort_buffer_size = 1M

read_buffer_size = 1M

read_rnd_buffer_size = 4M

myisam_sort_buffer_size = 64M

thread_cache_size = 8

query_cache_size= 16M

thread_concurrency = 8

log-bin=mysql-bin

binlog_format=mixed

server-id   = 1

6.初始化数据

1	mysql_install_db --defaults-file=/etc/my.cnf --datadir=/var/data/db/mariadb/ --user=mysql

7.启动服务

1	systemctl restart mysql

8.设置ROOT密码

1	mysqladmin -u root password "8888888"

9.登陆mysql

1	mysql -uroot -p

10.授权root远程登录

root可从任何IP登陆，注意修改密码:’888888’

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mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '888888' WITH GRANT OPTION;

mysql>FLUSH RIVILEGES;

root可从指定IP登陆，注意修改密码:’888888’、IP:’192.168.1.188’

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mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.1.188' IDENTIFIED BY '888888' WITH GRANT OPTION;

mysql>FLUSH RIVILEGES;