ubuntu mysql 5.6 安装与双机热备 有关问题及解决方案汇总
ubuntu mysql 5.6 安装与双机热备 问题及解决方法汇总 1.安装脚本: #!/bin/sh echo "安装前请确保mysql已被删除" sudo rm -r /opt/mysql sudo rm /etc/my.cnf sudo groupadd mysql sudo useradd -r -g mysql mysql #wget http://cdn.mysql.com/Downloads/MyS
ubuntu mysql 5.6 安装与双机热备 问题及解决方法汇总1.安装脚本:
#!/bin/sh
echo "安装前请确保mysql已被删除"
sudo rm -r /opt/mysql
sudo rm /etc/my.cnf
sudo groupadd mysql
sudo useradd -r -g mysql mysql
#wget http://cdn.mysql.com/Downloads/MySQL-5.6/mysql-5.6.13-linux-glibc2.5-x86_64.tar.gz
tar -zxvf mysql-5.6.13-linux-glibc2.5-x86_64.tar.gz
sudo mv mysql-5.6.13-linux-glibc2.5-x86_64 /opt/mysql
sudo ln -s /opt/mysql /usr/local/mysql
#初始化数据库
sudo /usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
sudo chown -R mysql:mysql /opt/mysql #添加权限;
#启动shell放到系统服务
sudo cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
#配置文件放至全局
sudo cp /usr/local/mysql/support-files/my-default.cnf /etc/my.cnf
#修改data目录权限
#cd /opt/mysql
#sudo chmod -R 755 data
echo "----ok----"
2.mysql 配置与用户权限管理
(1)启动mysql
sudo /etc/init.d/mysql start
(2)登录
初次登录 不需要密码 ./mysql/bin/mysql -u root
(3)设置密码
update mysql.user set password=password('root') where user='root';
grant privileges;
下次登录时就需要 密码
./mysql/bin/mysql -u root -p
(4)设置访问权限/资源限制
GRANT ALL ON *.* to root@'175.102.99.%' IDENTIFIED BY 'passwd';
GRANT ALL ON *.* to user@'172.16.8.%' IDENTIFIED BY 'passwd';
FLUSH PRIVILEGES;
官方参考:http://dev.mysql.com/doc/refman/5.1/zh/database-administration.html#request-access
(5)mysql 重启
sudo /etc/init.d/mysql restart
期间问题小计:
三种启动方式:
mysqld '在bin目录下'
[mysqld], [server], [mysqld-major-version]
mysql.server'在support-files目录下'
'如果你使用Linux 服务器RPM软件包(MySQL-server-VERSION.rpm),mysql.server脚本将安装到/etc/init.d目录下,'
[mysqld], [mysql.server], [server]
mysqld_safe '在bin目录下'
'使用mysqld_safe而不使用mysqld的好处是mysqld_safe“守护”其mysqld进程,如果用kill –9发送的信号或由于其它原因(例如分段故障)进程终止,则重启进程。'
[mysqld], [server], [mysqld_safe]
mysql 资料:http://dev.mysql.com/doc/refman/5.1/zh/database-administration.html
ubuntu 下手动安装mysql 详细版:http://www.cnblogs.com/wuhou/archive/2008/09/28/1301071.html











SET PASSWORD FOR ''@'localhost' = PASSWORD('rundong');
'第一次未设置密码时,不用 -p ,更新密码后,-p 会提示输入密码,必须密码登录/bin/mysql -h -u -p'
update mysql.user set password=password('rundong') where user='root'; ok
A.4.1. 如何复位根用户密码
http://dev.mysql.com/doc/refman/5.1/zh/problems.html#resetting-permissions












#ok配置文件: /etc my.cnf 日志路径;/var/log/mysql/mysqld.log 启动路径:/etc/init.d/mysql 安装路径:/opt/mysql/bin 软连接:/usr/local/mysql
备份脚本:
#!/bin/sh
dir_name=/opt/mysql/dump/rundong_$(date +%Y%m%d)
[ -d /opt/mysql/dump ] || mkdir /opt/mysql/dump
[ -d ${dir_name} ] || mkdir ${dir_name}
#mysqldump-- --opt 该选项是速记;它可以给出很快的转储操作并产生一个可以很快装入MySQL服务器的转储文件
#于备份一个整个的数据库:
/opt/mysql/bin/mysqldump --opt -d -uroot -ppasswd databse > ${dir_name}.sql
#sudo chown -R mysql:mysql /opt/mysql #添加权限;
/opt/mysql/bin/mysqldump --opt --tab ${dir_name} -udump -ppasswd database

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