mysql系统参数配置
1.系统参数解释http://dev.mysql.com/doc/refman/5.5/en/server-system-variables.html
2.slowlog配置
slow-query-log=1
slow_query_log_file=/var/log/mysql/mysql-slow.log
long_query_time=2
3.字符集配置
character-set-server=utf8
default-character-set=utf8
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