1.查询rpm -qa | grep mysql* 组件
出现类似安装包
mysql-server-5.1.71-1.el6.x86_64
mysql-libs-5.1.71-1.el6.x86_64
mysql-connector-odbc-5.1.5r1144-7.el6.x86_64
mysql-5.1.71-1.el6.x86_64
mysql-devel-5.1.71-1.el6.x86_64
2.卸载系统已安装的mysql,移除lib包
yum remove mysql-libs
3.检测是否卸载完全
rpm -qa | grep mysql*
没有软件判定已卸载完全
3.用户
groupadd mysql
useradd -d /mnt/mysql -g mysql mysql
passwd mysql
--输入两次密码
4.先复制配置文件，再安装mysql
4.安装mysql,/usr/soft
rpm -ivh MySQL-server-5.6.32-1.linux_glibc2.5.x86_64.rpm
rpm -ivh MySQL-client-5.6.32-1.linux_glibc2.5.x86_64.rpm
4. my.cnf文件
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html
[client]
#password=123456
port=3306
socket=/mnt/mysql/mysql.sock
default-character-set=utf8
[mysqld]
character-set-server=utf8
lower_case_table_names=1
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
log_bin=mysql-bin
#主机配置
#主机运行命令GRANT REPLICATION SLAVE ON *.* TO 'sqlsync'@'%' IDENTIFIED BY '123456';
#read-only=0 #主机，读写都可以
#binlog-do-db =test #需要备份数据，多个写多行
#binlog-ignore-db =mysql #不需要备份的数据库，多个写多行
# These are commonly set, remove the # and set as required.
#basedir = /mnt/mysql
datadir = /mnt/mysql
port = 3306
server_id = 1
#服务器唯一ID，默认是1，一般取IP最后一段
socket = /mnt/mysql/mysql.sock
max_connections=1000
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
#从机配置，主机不需要打开
#master-host=192.168.229.129
#master-user=mysnyc
#master-pass=123456
#master-port=3306
#master-connect-retry=60 #如果从服务器发现主服务器断掉，重新连接的时间差(秒)
#replicate-do-db =test #只复制某个库
#replicate-ignore-db=mysql #不复制某个库
log-slave-updates=ON
sync_binlog=1
auto_increment_offset=2
#便于区分，server id 为1的 设为1 为2的设为2
auto_increment_increment=2
slave-skip-errors=all
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[mysql]
default-character-set=utf8
4.修改root密码
su – mysql
可以不启动此语句，进入/root/.mysql_secret 看到root密码登陆
--mysqld_safe --user=root --skip-grant-tables --skip-networking & --省略
service mysql start
--mysql -u root mysql --省略
使用此语句
mysql –u root –p
输入默认密码
修改默认密码set password = password("123456");
mysql>
use mysql;
mysql> UPDATE user SET Password=PASSWORD('123456') where USER='root';
mysql> FLUSH PRIVILEGES;
mysql> quit
service
mysql restart
mysql -uroot -p
Enter password: <输入新设的密码newpassword>
quit
----------安装并设置成功
#如果提示ERROR 1820 (HY000): You must SET PASSWORD before executing this statement
#需要重新设置密码
set password = password("123456");
卸载mysql
yum remove mysql-libs
查找mysql安装包
rpm –qa|grep –i mysql
停止mysql服务
service mysql stop
rpm -e MySQL-client-5.6.32-1.linux_glibc2.5.x86_64
rpm -e MySQL-server-5.6.32-1.linux_glibc2.5.x86_64
删除mysql生成的部分文件
find / -name mysql
rm –rf ……
主从配置：
配置主mysql
GRANT REPLICATION SLAVE ON *.* TO 'mysync'@'%' IDENTIFIED BY '123456';
show master status;
配置从mysql
stop slave;//停止
change master to master_host='10.46.181.107',master_user='mysync',master_password='123456', MASTER_PORT=3306, MASTER_CONNECT_RETRY=10,master_log_file='mysql-bin.000004',master_log_pos=325;
start slave;
show slave statusG//查看状态
(主主 正好相反配置)
附：
创建用户并附所有权限
GRANT all privileges ON *.* TO 'bwcloud'@'%' IDENTIFIED BY '123456';
FLUSH PRIVILEGES;