gcc -lpthread -I/usr/include/mysql/ -L/usr/lib64/mysql/ -lmysqlclient -lz udp_pthread.c stack_data.c mysql_connect.c -o udp_pthread
http://blog.csdn.net/u010246789/article/details/52382632
yum install mysql-server mysql-devel mysql
wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm rpm -ivh mysql-community-release-el7-5.noarch.rpm yum install mysql-server service mysqld start或者/etc/init.d/mysqld start
ulimit -u 1111 4700