1.mysql语句执行后报错找不到mysql.sock
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
解决方法：service mysql status
service mysql start
2.同安装方式mysql安装后的名称
yum安装后的myql 是mysqld
rpm安装后的mysql是 mysql
3.mysql随机密码位置
rpm安装后在/root/.mysql_secret
4.mysql跳过密码验证
/etc/my.cnf，在 [mysqld] 小节下添加一行：skip-grant-tables=1
5.mysql开启远程登录
任意节点远程登录
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'IDENTIFIED BY 'password' WITH GRANT OPTION
flush privileges
6.包冲突：
mysql-libs-5.1 conflicts with file from package MySQL-server-5.5
解决方法：安装相应版本的MySQL-shared-compat的rpm包。
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