在升级了php7.2.0版本之后，重新启动php-fpm过程中遇到一个报错。
An another FPM instance seems to already listen on /tmp/php-cgi.sock
# netstat -ant | grep //查看启动进程，发现没启动成功
我们去查看一下php-fpm.conf里面的配置：
# vim /usr/local/php/etc/php-fpm.conf
[www]
listen = /tmp/php-cgi.sock //注意
listen.backlog = -
listen.allowed_clients = 127.0.0.1
listen.owner = www
listen.group = www
此时我们需要根据配置文件的listen地址做对应的修改：
# vim /usr/local/nginx/conf/nginx.conf
location ~ [^/]\.php(/|$) {
fastcgi_pass unix:/tmp/php-cgi.sock; //把127.0.0.1:9000改为此行
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
location / {
root html;
index index.php index.html index.htm;
}
修改完平滑重启nginx，然后启动php-fpm，OK