user            = mysql
pid-file        = /var/run/mysqld/mysqld.pid
socket          = /var/run/mysqld/mysqld.sock
port            = 3306
basedir         = /usr
datadir         = /var/lib/mysql
tmpdir          = /tmp
log-error=/var/log/mysql/error.log
lc-messages-dir = /usr/share/mysql
skip-external-locking
default-character-set=utf8

結(jié)果查看了錯誤日志才發(fā)現(xiàn)是字符集的錯誤：

復(fù)制代碼代碼如下:

[ERROR] /usr/sbin/mysqld: unknown variable 'default-character-set=utf8'

居然不認(rèn)識，上網(wǎng)上了找了下發(fā)現(xiàn)也有人遇到了，說是5.5中mysql不再使用default-character-set這種寫法了。

具體請看：http://dev.mysql.com/doc/refman/5.5/en/server-options.html#option_mysqld_default-character-set

把default-character-set=utf8 改成： character-set-server=utf8就可以了。

復(fù)制代碼代碼如下:

root@chenDBA:/etc/mysql# vim my.cnf 
root@chenDBA:/etc/mysql# service mysql start
mysql start/running, process 5904
root@chenDBA:/etc/mysql# mysql -uroot -p
Enter password: 
mysql> show variables like 'character%';
+--------------------------+----------------------------+
| Variable_name            | Value                      |
+--------------------------+----------------------------+
| character_set_client     | utf8                       |
| character_set_connection | utf8                       |
| character_set_database   | utf8                       |
| character_set_filesystem | binary                     |
| character_set_results    | utf8                       |
| character_set_server     | utf8                       |
| character_set_system     | utf8                       |
| character_sets_dir       | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
8 rows in set (0.00 sec)