注意:修改 nginx 的 max open files 有个前提,就是你已经修改好了系统的 max open files.先查看 nginx 的 ulimits: grep ‘open files’ /proc/$( cat /var/run/nginx.pid )/limits修改 nginx.servicesudo vi /lib/systemd/system/nginx.service # (仅适用于 ubuntu)添加:[Service]LimitNOFILE=100000重启服务:sudo systemctl daemon-reload修改 nginx.conf,添加:worker_rlimit_nofile 90000; # (has to be smaller or equal to LimitNOFILE set above)重启 nginx:sudo systemctl restart nginx上面是网上流传的教程,但是还是不够,你这样改了之后,nginx 的并发能力反而会下降,所以还需要改一个关键的参数:修改 nginx.conf添加:events { worker_connections 90000;}重启 nginx:sudo systemctl restart nginx