# Mysql 脚本

## 安装相关说明
- 下载页面：https://mirrors.aliyun.com/mariadb/mariadb-10.10.2/bintar-linux-systemd-x86_64/mariadb-10.10.2-linux-systemd-x86_64.tar.gz
- 指导书：https://blog.51cto.com/jschu/4323600

## 日志表相关
文档 https://mariadb.com/kb/en/archive/

#停止服务
systemctl stop tomcat.1
systemctl stop mysql_cw.1
systemctl disable mysql_cw.1
rm -rf /etc/init.d/mysql_cw.1
pkill mysqld
sleep 5

#设置环境变量
source /home/coursework/.cg_env.sh

#删除旧文件
cd $Z_MYSQL_INS_FOLDER
rm -rf -- bin include lib libexec share tmp
rm -rf -- /etc/my.cnf.cgbk /etc/my.cnf.d ~/.my.cnf

#处理配置文件
sed -i '/mysql.sock/s/.*/#&/' my.cnf
sed -i '/skip-locking/s/.*/#&/' my.cnf
cp my.cnf /etc/my.cnf
mv my.cnf my.cnf.old

#下载
groupadd mysql
useradd -g mysql mysql
cd /usr/local
curl -o mariadb-10.10.2-linux-systemd-x86_64.tar.gz https://mirrors.neusoft.edu.cn/mariadb/mariadb-10.10.2/bintar-linux-systemd-x86_64/mariadb-10.10.2-linux-systemd-x86_64.tar.gz

#挂载点相关处理
cd /var/lib
mkdir mysql

mpoint=`stat -c %m -- "$Z_MYSQL_INS_FOLDER"`
if [ x"$mpoint" = x"test" ]; then
	sed -i '/\/var\/lib\/mysql/s/.*/#&/' /etc/fstab
	echo "$Z_MYSQL_INS_FOLDER/var /var/lib/mysql  none    bind,x-systemd.requires-mounts-for=$mpoint 0 0" >>/etc/fstab
	mount -a
	echo "Remount"
fi

chown -R mysql:mysql mysql

#解压缩
cd /usr/local
mkdir mysql
cd /usr/local/mysql
tar --strip-components=1 -xvf ../mariadb-10.10.2-linux-systemd-x86_64.tar.gz

#服务相关
cd /usr/local/mysql
sed -i 's/ExecStart=\/usr\/local\/mysql\/bin\/mariadbd \$/ExecStart=\/usr\/local\/mysql\/bin\/mariadbd --datadir=\/var\/lib\/mysql \$/g' support-files/systemd/mariadb.service
cp support-files/systemd/mariadb.service /usr/lib/systemd/system

#权限
chown -R mysql:mysql /var/lib/mysql
chown -R mysql:mysql /usr/local/mysql

#启动服务
systemctl start mariadb
systemctl enable mariadb

#链接
ln -s /usr/local/mysql/bin $Z_MYSQL_INS_FOLDER/bin

#版本检测
$Z_MYSQL_INS_FOLDER/bin/mysql -u root --password=$Z_MYSQL_PASSWD -e 'show variables like "version";'

#重启服务
systemctl start tomcat.1