常連

###前提・実現したいこと
・発生しているエラーメッセージの原因を探りたい
・発生しているエラーを解消したい

/**************************************************************/
サーバA WEBサーバ Apache2.2 サイト：https://example.com/
サーバB WEBサーバ Nginx1.9  サイト：https://example.com/○○○/

サーバBは下記パッケージを利用しており、使用用途はWordPressのみです。
超高速WordPress仮想マシン「KUSANAGI」
https://kusanagi.tokyo/

サーバBのサイトはサーバAのリバースプロキシで表示しております。
サーバーBのssl.confのエラーログに下記エラーメッセージが多発しております。

こちらの3つのどうしたら解消できるか、Googleでも調べてみたのですが
直接的な解決方法がわからないため、この度ご質問させていただきました。
/**************************************************************/

###発生している問題・エラーメッセージ
```
[error] [client ○○○.○○○.○○○.○○○] (70008)Partial results are valid but processing is incomplete: proxy: error reading response, referer: https://○○○～.com/
[error] (70008)Partial results are valid but processing is incomplete: proxy: prefetch request body failed to ○○○.○○○.○○○.○○○:80 (○○○.○○○.○○○.○○○) from ○○○.○○○.○○○.○○○ ()
[error] (104)Connection reset by peer: proxy: prefetch request body failed to ○○○.○○○.○○○.○○○:80 (○○○.○○○.○○○.○○○) from ○○○.○○○.○○○.○○○ ()
```

```
エラーメッセージ
```

###該当のソースコード
```ここに言語を入力
server {
	listen       443;
	server_name  △△.△△.△△.△△; #サーバBIP
    	rewrite ^(.*)$ https://example.com$1 last;

    	location / {
		try_files $uri $uri/ /index.php?$args;
		location ~ [^/]\.php(/|$) {
			fastcgi_split_path_info ^(.+?\.php)(/.*)$;
			if (!-f $document_root$fastcgi_script_name) {
				return 404;
			}
			fastcgi_pass 127.0.0.1:9000;
			fastcgi_index index.php;
			fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
			include fastcgi_params;
			fastcgi_buffers 256 128k;
			fastcgi_buffer_size 128k;
			fastcgi_intercept_errors on;
			fastcgi_read_timeout 120s;
		}
	}
}

server {
	listen       443;
	server_name  example.com;#サーバーBドメイン

	ssl_certificate      /etc/pki/tls/certs/server.crt;
	ssl_certificate_key  /etc/pki/tls/private/key.pem;
	ssl_dhparam /etc/kusanagi.d/ssl/dhparam.key;

	ssl_session_tickets     on;
	ssl_session_ticket_key     /etc/kusanagi.d/ssl_sess_ticket.key;

	ssl_session_cache shared:SSL:1m;
	ssl_session_timeout  5m;

	ssl_protocols TLSv1 TLSv1.1 TLSv1.2;

	ssl_ciphers "EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4";

	ssl_prefer_server_ciphers   on;

	ssl_stapling on;
	ssl_stapling_verify on;
	resolver 8.8.4.4 8.8.8.8 valid=300s;
	resolver_timeout 10s;

	access_log  /home/kusanagi/example_html/log/nginx/ssl_access.log main;
	error_log   /home/kusanagi/example_html/log/nginx/ssl_error.log warn;

	charset UTF-8;
	client_max_body_size 16M;
	root  /home/kusanagi/example_html/example.com;
	index index.php index.html index.htm;

	rewrite /wp-admin$ $scheme://$host$uri/ permanent;

	location / {
		try_files $uri $uri/ /index.php?$args;
		location ~ [^/]\.php(/|$) {
			fastcgi_split_path_info ^(.+?\.php)(/.*)$;
			if (!-f $document_root$fastcgi_script_name) {
				return 404;
			}
			fastcgi_pass 127.0.0.1:9000;
			fastcgi_index index.php;
			fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
			include fastcgi_params;
			fastcgi_buffers 256 128k;
			fastcgi_buffer_size 128k;
			fastcgi_intercept_errors on;
			fastcgi_read_timeout 120s;
		}
	}

	location = /favicon.ico {
		log_not_found off;
		access_log off;
	}

    location ^~ /○○○ { #サーバBの下層ディレクトリ名

         root /home/kusanagi/example_html/example.com;
         index index.php index.html index.htm;
         try_files $uri $uri/ @wp;

	location ~* /\.well-known {
		allow all;
	}

	location ~* /\. {
		deny all;
	}

	location ~* /(?:uploads|files)/.*\.php$ {
		deny all;
	}

	location ~* \.(jpg|jpeg|gif|png|css|js|swf|ico|pdf|svg|eot|ttf|woff)$ {
		access_log off;
	}

    location ~* /wp-login\.php|/wp-admin/((?!admin-ajax\.php).)*$ {
		satisfy any;
		allow 0.0.0.0/0;
		allow 127.0.0.1;
		deny all;
		auth_basic "basic authentication";
		auth_basic_user_file  "/home/kusanagi/.htpasswd";
		location ~ [^/]\.php(/|$) {
			fastcgi_split_path_info ^(.+?\.php)(/.*)$;
			if (!-f $document_root$fastcgi_script_name) {
				return 404;
			}
			fastcgi_pass 127.0.0.1:9000;
			fastcgi_index index.php;
			fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
			include fastcgi_params;
			fastcgi_buffers 256 128k;
			fastcgi_buffer_size 128k;
			fastcgi_intercept_errors on;
			fastcgi_read_timeout 120s;
		}
	}

	location ~ [^/]\.php(/|$) {
		fastcgi_split_path_info ^(.+?\.php)(/.*)$;
		if (!-f $document_root$fastcgi_script_name) {
			return 404;
		}
		fastcgi_pass 127.0.0.1:9000;
		fastcgi_index index.php;
		fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
		include fastcgi_params;
		fastcgi_buffers 256 128k;
		fastcgi_buffer_size 128k;
		fastcgi_intercept_errors on;
		fastcgi_read_timeout 120s;
		

		set $do_not_cache 1; 
		set $device "pc";
		set $hsts 0;

		if ($hsts = 1) {
			
			add_header Strict-Transport-Security "max-age=31536000";
		}
		if ($hsts = 2) {
			
			add_header Strict-Transport-Security "max-age=31536000; includeSubDomains";
		}
		if ($hsts = 3) {
			
			add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload";
		}

		if ($request_method = POST) {
			set $do_not_cache 1;
		}

		if ($query_string != "") {
			set $do_not_cache 1;
		}

		if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_no_cache|wordpress_logged_in") {
			set $do_not_cache 1;
		}

		if ($request_uri ~* "(/wp-admin/|/xmlrpc.php|/wp-(app|cron|login|register|mail).php|wp-.*.php|/feed/|index.php|wp-comments-popup.php|wp-links-opml.php|wp-locations.php|sitemap(_index)?.xml|[a-z0-9_-]+-sitemap([0-9]+)?.xml)") {
			set $do_not_cache 1;
		}

		if ($http_user_agent ~* " Android |\(iPad|Android; Tablet; .+Firefox") {
			set $device "tablet";
		}

		if ($http_user_agent ~* " Android .+ Mobile |\(iPhone|\(iPod|IEMobile|Android; Mobile; .+Firefox|Windows Phone") {
			set $device "smart";
		}

		fastcgi_cache        wpcache;
		fastcgi_cache_key    "$device:$request_method:$scheme://$host$request_uri";
		fastcgi_cache_valid  200 10m;
		fastcgi_no_cache     $do_not_cache;
		fastcgi_cache_bypass $do_not_cache;

		add_header X-F-Cache $upstream_cache_status;
		add_header X-Signature KUSANAGI;
		
	}

	location ~ /fcache-purge/([^/]+)(/.*) {
		allow 127.0.0.1;
		deny all;
		fastcgi_cache_purge wpcache "$1:GET:$scheme://$host$2";     
	}
	}
}

```

###試したこと
調査したのですが改善方法が全くわかりませんでした。。。

###補足情報(言語/FW/ツール等のバージョンなど)
エラーは毎日それぞれ10件～20件ぐらい出ています。

###前提・実現したいこと
・発生しているエラーメッセージの原因を探りたい
・発生しているエラーを解消したい

/**************************************************************/
サーバA WEBサーバ Apache2.2 サイト：https://example.com/
サーバB WEBサーバ Nginx1.9  サイト：https://example.com/○○○/

サーバBは下記パッケージを利用しており、使用用途はWordPressのみです。
超高速WordPress仮想マシン「KUSANAGI」
https://kusanagi.tokyo/

サーバBのサイトはサーバAのリバースプロキシで表示しております。
サーバーBのssl.confのエラーログに下記エラーメッセージが多発しております。

こちらの3つのどうしたら解消できるか、Googleでも調べてみたのですが
直接的な解決方法がわからないため、この度ご質問させていただきました。
/**************************************************************/

###発生している問題・エラーメッセージ
```
[error] [client ○○○.○○○.○○○.○○○] (70008)Partial results are valid but processing is incomplete: proxy: error reading response, referer: https://○○○～.com/
[error] (70008)Partial results are valid but processing is incomplete: proxy: prefetch request body failed to ○○○.○○○.○○○.○○○:80 (○○○.○○○.○○○.○○○) from ○○○.○○○.○○○.○○○ ()
[error] (104)Connection reset by peer: proxy: prefetch request body failed to ○○○.○○○.○○○.○○○:80 (○○○.○○○.○○○.○○○) from ○○○.○○○.○○○.○○○ ()
```

```
エラーメッセージ
```

###該当のソースコード
```ここに言語を入力
server {
	listen       443;
	server_name  △△.△△.△△.△△; #サーバBIP
    	rewrite ^(.*)$ https://example.com$1 last;

    	location / {
		try_files $uri $uri/ /index.php?$args;
		location ~ [^/]\.php(/|$) {
			fastcgi_split_path_info ^(.+?\.php)(/.*)$;
			if (!-f $document_root$fastcgi_script_name) {
				return 404;
			}
			fastcgi_pass 127.0.0.1:9000;
			fastcgi_index index.php;
			fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
			include fastcgi_params;
			fastcgi_buffers 256 128k;
			fastcgi_buffer_size 128k;
			fastcgi_intercept_errors on;
			fastcgi_read_timeout 120s;
		}
	}
}

server {
	listen       443;
	server_name  example.com;#サーバーBドメイン

	ssl_certificate      /etc/pki/tls/certs/server.crt;
	ssl_certificate_key  /etc/pki/tls/private/key.pem;
	ssl_dhparam /etc/kusanagi.d/ssl/dhparam.key;

	ssl_session_tickets     on;
	ssl_session_ticket_key     /etc/kusanagi.d/ssl_sess_ticket.key;

	ssl_session_cache shared:SSL:1m;
	ssl_session_timeout  5m;

	ssl_protocols TLSv1 TLSv1.1 TLSv1.2;

	ssl_ciphers "EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4";

	ssl_prefer_server_ciphers   on;

	ssl_stapling on;
	ssl_stapling_verify on;
	resolver 8.8.4.4 8.8.8.8 valid=300s;
	resolver_timeout 10s;

	access_log  /home/kusanagi/example_html/log/nginx/ssl_access.log main;
	error_log   /home/kusanagi/example_html/log/nginx/ssl_error.log warn;

	charset UTF-8;
	client_max_body_size 16M;
	root  /home/kusanagi/example_html/example.com;
	index index.php index.html index.htm;

	rewrite /wp-admin$ $scheme://$host$uri/ permanent;

	location / {
		try_files $uri $uri/ /index.php?$args;
		location ~ [^/]\.php(/|$) {
			fastcgi_split_path_info ^(.+?\.php)(/.*)$;
			if (!-f $document_root$fastcgi_script_name) {
				return 404;
			}
			fastcgi_pass 127.0.0.1:9000;
			fastcgi_index index.php;
			fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
			include fastcgi_params;
			fastcgi_buffers 256 128k;
			fastcgi_buffer_size 128k;
			fastcgi_intercept_errors on;
			fastcgi_read_timeout 120s;
		}
	}

	location = /favicon.ico {
		log_not_found off;
		access_log off;
	}

    location ^~ /○○○ { #サーバBの下層ディレクトリ名

         root /home/kusanagi/example_html/example.com;
         index index.php index.html index.htm;
         try_files $uri $uri/ @wp;

	location ~* /\.well-known {
		allow all;
	}

	location ~* /\. {
		deny all;
	}

	location ~* /(?:uploads|files)/.*\.php$ {
		deny all;
	}

	location ~* \.(jpg|jpeg|gif|png|css|js|swf|ico|pdf|svg|eot|ttf|woff)$ {
		access_log off;
	}

    location ~* /wp-login\.php|/wp-admin/((?!admin-ajax\.php).)*$ {
		satisfy any;
		allow 0.0.0.0/0;
		allow 127.0.0.1;
		deny all;
		auth_basic "basic authentication";
		auth_basic_user_file  "/home/kusanagi/.htpasswd";
		location ~ [^/]\.php(/|$) {
			fastcgi_split_path_info ^(.+?\.php)(/.*)$;
			if (!-f $document_root$fastcgi_script_name) {
				return 404;
			}
			fastcgi_pass 127.0.0.1:9000;
			fastcgi_index index.php;
			fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
			include fastcgi_params;
			fastcgi_buffers 256 128k;
			fastcgi_buffer_size 128k;
			fastcgi_intercept_errors on;
			fastcgi_read_timeout 120s;
		}
	}

	location ~ [^/]\.php(/|$) {
		fastcgi_split_path_info ^(.+?\.php)(/.*)$;
		if (!-f $document_root$fastcgi_script_name) {
			return 404;
		}
		fastcgi_pass 127.0.0.1:9000;
		fastcgi_index index.php;
		fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
		include fastcgi_params;
		fastcgi_buffers 256 128k;
		fastcgi_buffer_size 128k;
		fastcgi_intercept_errors on;
		fastcgi_read_timeout 120s;
		

		set $do_not_cache 1; 
		set $device "pc";
		set $hsts 0;

		if ($hsts = 1) {
			
			add_header Strict-Transport-Security "max-age=31536000";
		}
		if ($hsts = 2) {
			
			add_header Strict-Transport-Security "max-age=31536000; includeSubDomains";
		}
		if ($hsts = 3) {
			
			add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload";
		}

		if ($request_method = POST) {
			set $do_not_cache 1;
		}

		if ($query_string != "") {
			set $do_not_cache 1;
		}

		if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_no_cache|wordpress_logged_in") {
			set $do_not_cache 1;
		}

		if ($request_uri ~* "(/wp-admin/|/xmlrpc.php|/wp-(app|cron|login|register|mail).php|wp-.*.php|/feed/|index.php|wp-comments-popup.php|wp-links-opml.php|wp-locations.php|sitemap(_index)?.xml|[a-z0-9_-]+-sitemap([0-9]+)?.xml)") {
			set $do_not_cache 1;
		}

		if ($http_user_agent ~* " Android |\(iPad|Android; Tablet; .+Firefox") {
			set $device "tablet";
		}

		if ($http_user_agent ~* " Android .+ Mobile |\(iPhone|\(iPod|IEMobile|Android; Mobile; .+Firefox|Windows Phone") {
			set $device "smart";
		}

		fastcgi_cache        wpcache;
		fastcgi_cache_key    "$device:$request_method:$scheme://$host$request_uri";
		fastcgi_cache_valid  200 10m;
		fastcgi_no_cache     $do_not_cache;
		fastcgi_cache_bypass $do_not_cache;

		add_header X-F-Cache $upstream_cache_status;
		add_header X-Signature KUSANAGI;
		
	}

	location ~ /fcache-purge/([^/]+)(/.*) {
		allow 127.0.0.1;
		deny all;
		fastcgi_cache_purge wpcache "$1:GET:$scheme://$host$2";     
	}
	}
}

```

###試したこと
調査したのですが改善方法が全くわかりませんでした。。。

###補足情報(言語/FW/ツール等のバージョンなど)
エラーは各それぞれ10件～20件ぐらい出ている所感です。

@@ -478,4 +478,4 @@
 ###補足情報(言語/FW/ツール等のバージョンなど)
-エラーは各それぞれ10件～20件ぐらい出ている所感です。
+エラーは毎日それぞれ10件～20件ぐらい出ています。

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