nginxのエラーログに「upstream sent too big header while reading response header from upstream」の出力があった場合の対応方法

「レスポンスヘッダーが大きすぎる」ということでエラーになっています。

nginx.confに以下を追加します。

fastcgi_buffers 8 16k;

fastcgi_buffer_size 32k;

# cat nginx.conf
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;

include /usr/share/nginx/modules/*.conf;

events {
    worker_connections  1024;
}

http {
    server_tokens off;
    access_log  /var/log/nginx/access.log  main;

    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;

    fastcgi_buffers 8 16k;
    fastcgi_buffer_size 32k;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;

    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;
}
#

# cat nginx.conf

user nginx;

worker_processes auto;

error_log /var/log/nginx/error.log;

pid /var/run/nginx.pid;

include /usr/share/nginx/modules/*.conf;

events {

worker_connections 1024;

}

http {

server_tokens off;

access_log /var/log/nginx/access.log main;

sendfile on;

tcp_nopush on;

tcp_nodelay on;

keepalive_timeout 65;

types_hash_max_size 2048;

fastcgi_buffers 8 16k;

fastcgi_buffer_size 32k;

include /etc/nginx/mime.types;

default_type application/octet-stream;

# Load modular configuration files from the /etc/nginx/conf.d directory.

# See http://nginx.org/en/docs/ngx_core_module.html#include

# for more information.

include /etc/nginx/conf.d/*.conf;

}