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本文演示centos7下二进制安装mysql。

下载

建议百度网盘下载，或者：https://www.cnblogs.com/uncleyong/p/13785675.html

解压

tar -zxvf mysql-5.7.26-linux-glibc2.12-x86_64.tar.gz

移动并改名

移动到/usr/local下，并改名为mysql：mv mysql-5.7.26-linux-glibc2.12-x86_64 /usr/local/mysql

配置环境变量

vim /etc/profile

# mysql5.7
export PATH=/usr/local/mysql/bin:$PATH

使配置生效：source /etc/profile

验证

mysql --version

安装libaio依赖库

https://dev.mysql.com/doc/

yum list installed libaio

如果没有，就安装：yum -y install libaio

创建目录

mkdir -p /mysql/{data,redo,binlog,tmp,logs}

配置文件

vim /mysql/my.cnf

[client]
default-character-set = utf8
port = 3306
socket = /mysql/tmp/mysql.sock
 
[mysqld]
port = 3306
character_set_server = utf8
server-id = 1
socket= /mysql/tmp/mysql.sock
basedir = /usr/local/mysql
datadir = /mysql/data
tmpdir = /mysql/tmp
log-error = /mysql/logs/alert.log
pid-file = /mysql/tmp/mysql.pid
log-bin = /mysql/binlog/mysql-bin
slow_query_log_file = /mysql/logs/slow.log
default-storage-engine = INNODB
innodb_data_file_path = ibdatal:2G:autoextend
innodb_log_group_home_dir = /mysql/redo
innodb_file_per_table = 1

初始化

mysqld --defaults-file=/mysql/my.cnf --initialize

获取临时密码：grep 'temporary password' /mysql/logs/alert.log

U-K%MUngZ3m=

启动服务

nohup mysqld_safe --defaults-file=/mysql/my.cnf --user=root &

补充：停止服务命令是mysqladmin -uroot -p"123456" shutdown -S /mysql/tmp/mysql.sock

登录

mysql -uroot -p"临时密码"

mysql -uroot -p"U-K%MUngZ3m="

Can't connect to local MySQL server through socket '/tmp/mysql.sock'

解决方案：

• 方案一：指定sock文件：-S /mysql/tmp/mysql.sock
• 方案二：创建软连接，ln -s /mysql/tmp/mysql.sock /tmp

mysql -uroot -p"U-K%MUngZ3m=" -S /mysql/tmp/mysql.sock

修改密码

set password='123456';

flush privileges;

exit

设置远程访问

用新密码重新登录

grant all privileges on *.* to root@'%' identified by '123456' with grant option;

flush privileges;

创建系统服务

vim /usr/lib/systemd/system/mysqld.service

[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target

[Install]
WantedBy=multi-user.target

[Service]
User=root
Group=root
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/mysql/my.cnf --user=root
LimitNOFILE = 5000 

设置开机启动并启动服务：systemctl enable --now mysqld

是否开机启动：systemctl is-enabled mysqld

查看服务状态：systemctl status mysqld

启动服务：systemctl start mysqld

停止服务：systemctl stop mysqld

【bak】