MySQL起动报错The server quit without updating PID file (/usr/local/mysql/data/
查看日志：
131206 23:10:21 mysqld_safe mysqld from pid file /usr/local/mysql/data/mysql.pid ended
vi /etc/my.cnf
在[mysqld]中添加：
datadir = /usr/local/mysql/data log-error = /usr/local/mysql/data/error.log pid-file = /usr/local/mysql/data/mysql.pid user = mysql tmpdir = /tmp
#保存退出
#初始化数据库
./mysql_install_db --user=mysql --basedir=/usr/local/mysql \ --datadir=/usr/local/mysql/data \ --pid-file=/usr/local/mysql/data/mysql.pid --tmpdir=/tmp
service mysqld restart
