ERROR: unable to bind listening socket for address '127.0.0.1:9000': Address already in use
服务器重启后 启动php-fpm报错：
php-fpm
[root@localhost bin]# /etc/init.d/php-fpm start
Starting php-fpm [11-Jun-2018 11:26:20] ERROR: unable to bind listening socket for address '127.0.0.1:9000': Address already in use (98)
[11-Jun-2018 11:26:20] ERROR: FPM initialization failed
9000端口被占用
1查看是否php-fpm 处于开启状态，服务器并未杀死php-fpm的进程。
netstat -lntup | grep 9000
2 停止原来php-fpm的进程，重启开启
[root@localhost ~]# killall php-fpm
[root@localhost ~]# /etc/init.d/php-fpm start
Starting php-fpm done
