could not build optimal proxy_headers_hash, you should increase either proxy_headers_hash_max_size:

[emerg]: could not build the proxy_headers_hash, you should increase either

[emerg]: could not build the proxy_headers_hash, you should increase either proxy_headers_hash_max_size: 512 or proxy_headers_hash_bucket_size: 640

修改nginx.conf，在http段中加如下面2行,然后nginx -t测试下：

http{

…

proxy_headers_hash_max_size 51200;

proxy_headers_hash_bucket_size 6400;

…

}