[root@localhost mysql]# service mysql start
Starting MySQL. ERROR! The server quit without updating PID file (/var/lib/mysql/localhost.localdomain.pid).
cp /usr/share/mysql/my-huge.cnf /etc/my.cnf
/etc/my.cnf来自以下文件： 如果你的内存≤64M，则复制/usr/local/share/mysql/my-small.cnf为/etc/my.cnf # This is for a system with little memory (<= 64M) where MySQL is only used # from time to time and it's important that the mysqld daemon # doesn't use much resources. 如果内存是128M，则复制/usr/local/share/mysql/my-medium.cnf为/etc/my.cnf # This is for a system with little memory (32M - 64M) where MySQL plays # an important part, or systems up to 128M where MySQL is used together with # other programs (such as a web server) 如果内存是512M，则复制/usr/local/share/mysql/my-large.cnf为/etc/my.cnf # This is for a large system with memory = 512M where the system runs mainly # MySQL. 如果内存是1-2G，则复制/usr/local/share/mysql/my-huge.cnf为/etc/my.cnf # This is for a large system with memory of 1G-2G where the system runs mainly # MySQL.