-- 服务器发送和接受的最大包长度 SHOW VARIABLES LIKE ‘%max_allowed_packet%‘; -- TCP/IP和socket连接的缓存大小 SHOW VARIABLES LIKE ‘%net_buffer_length%‘; mysqldump -uikadmin -pikadmin -e --max_allowed_packet=1048576 --net_buffer_length=16384 iknowledge exam_record user_timu_zg_record user_timu_zg_judge section_judge exam_task sys_user timu > export.sql;
原文：http://my.oschina.net/u/933822/blog/526478