报错信息：
No pool defined. at least one pool section must be specified in config file [11-Mar-2019 23:57:30] ERROR: failed to post process the configuration [11-Mar-2019 23:57:30] ERROR: FPM initialization failed
处理方法：
进入目录 /usr/local/php/etc/php-fpm.d 执行 cp www.conf.default www.conf
启动php-fpm: service php-fpm start