03-启动应用程序时，报ERROR: unable to bind listening socket for address '127.0.0.1:9000': Address already in use (98)

1、启动应用程序时，报ERROR: unable to bind listening socket for address '127.0.0.1:9000': Address already in use (98)

9000端口被占用 

2、netstat -lntup | grep 9000

查看9000端口

3、killall php-fpm

停止原来php-fpm的进程，重启开启