报错内容：

nginx: [warn] could not build optimal proxy_headers_hash, you should increase either
proxy_headers_hash_max_size: 512 or proxy_headers_hash_bucket_size: 64; ignoring proxy_headers_hash_bucket_size

解决方法：

vim /etc/nginx/nginx.conf

在http里面增加

proxy_headers_hash_max_size 51200;
proxy_headers_hash_bucket_size 6400;