Duplicated response body with fastcgi

Etienne Robillard tkadm30 at yandex.com
Fri Jul 14 12:32:01 UTC 2017


How can one debug the upstream FastCGI response from nginx?



Le 2017-07-13 à 10:25, Etienne Robillard a écrit :
> Hi,
> I'm trying to setup a Django app with nginx using fastcgi. Here's my 
> config:
>
> # configuration file /etc/nginx/nginx.conf:
> user www-data;
> worker_processes 4;
> pid /run/nginx.pid;
>
> events {
>     worker_connections 512;
>     multi_accept on;
>     use epoll;
> }
>
> http {
>
>     ##
>     # Basic Settings
>     ##
>
>     sendfile on;
>     tcp_nopush on;
>     tcp_nodelay on;
>     keepalive_timeout 80;
>     types_hash_max_size 2048;
>     # server_tokens off;
>
>     # server_names_hash_bucket_size 64;
>     # server_name_in_redirect off;
>
>     include /etc/nginx/mime.types;
>     default_type application/octet-stream;
>
>     ##
>     # SSL Settings
>     ##
>
>     ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
>     ssl_prefer_server_ciphers on;
>
>     ##
>     # Logging Settings
>     ##
>
>     access_log /var/log/nginx/access.log;
>     error_log /var/log/nginx/error.log;
>
>     ##
>     # Gzip Settings
>     ##
>
>     gzip off;
>     gzip_disable "msie6";
>
>     # gzip_vary on;
>     # gzip_proxied any;
>     # gzip_comp_level 6;
>     # gzip_buffers 16 8k;
>     # gzip_http_version 1.1;
>     # gzip_types text/plain text/css application/json 
> application/javascript text/xml application/xml application/xml+rss 
> text/javascript;
>
>     ##
>     # Virtual Host Configs
>     ##
>
>     include /etc/nginx/conf.d/development.conf;
>     #include /etc/nginx/sites-enabled/*;
> }
>
>
> #mail {
> #    # See sample authentication script at:
> #    # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
> #
> #    # auth_http localhost/auth.php;
> #    # pop3_capabilities "TOP" "USER";
> #    # imap_capabilities "IMAP4rev1" "UIDPLUS";
> #
> #    server {
> #        listen     localhost:110;
> #        protocol   pop3;
> #        proxy      on;
> #    }
> #
> #    server {
> #        listen     localhost:143;
> #        protocol   imap;
> #        proxy      on;
> #    }
> #}
>
> # configuration file /etc/nginx/mime.types:
>
> types {
>     text/html                             html htm shtml;
>     text/css                              css;
>     text/xml                              xml;
>     image/gif                             gif;
>     image/jpeg                            jpeg jpg;
>     application/javascript                js;
>     application/atom+xml                  atom;
>     application/rss+xml                   rss;
>
>     text/mathml                           mml;
>     text/plain                            txt;
>     text/vnd.sun.j2me.app-descriptor      jad;
>     text/vnd.wap.wml                      wml;
>     text/x-component                      htc;
>
>     image/png                             png;
>     image/tiff                            tif tiff;
>     image/vnd.wap.wbmp                    wbmp;
>     image/x-icon                          ico;
>     image/x-jng                           jng;
>     image/x-ms-bmp                        bmp;
>     image/svg+xml                         svg svgz;
>     image/webp                            webp;
>
>     application/font-woff                 woff;
>     application/java-archive              jar war ear;
>     application/json                      json;
>     application/mac-binhex40              hqx;
>     application/msword                    doc;
>     application/pdf                       pdf;
>     application/postscript                ps eps ai;
>     application/rtf                       rtf;
>     application/vnd.apple.mpegurl         m3u8;
>     application/vnd.ms-excel              xls;
>     application/vnd.ms-fontobject         eot;
>     application/vnd.ms-powerpoint         ppt;
>     application/vnd.wap.wmlc              wmlc;
>     application/vnd.google-earth.kml+xml  kml;
>     application/vnd.google-earth.kmz      kmz;
>     application/x-7z-compressed           7z;
>     application/x-cocoa                   cco;
>     application/x-java-archive-diff       jardiff;
>     application/x-java-jnlp-file          jnlp;
>     application/x-makeself                run;
>     application/x-perl                    pl pm;
>     application/x-pilot                   prc pdb;
>     application/x-rar-compressed          rar;
>     application/x-redhat-package-manager  rpm;
>     application/x-sea                     sea;
>     application/x-shockwave-flash         swf;
>     application/x-stuffit                 sit;
>     application/x-tcl                     tcl tk;
>     application/x-x509-ca-cert            der pem crt;
>     application/x-xpinstall               xpi;
>     application/xhtml+xml                 xhtml;
>     application/xspf+xml                  xspf;
>     application/zip                       zip;
>
>     application/octet-stream              bin exe dll;
>     application/octet-stream              deb;
>     application/octet-stream              dmg;
>     application/octet-stream              iso img;
>     application/octet-stream              msi msp msm;
>
> application/vnd.openxmlformats-officedocument.wordprocessingml.document 
> docx;
> application/vnd.openxmlformats-officedocument.spreadsheetml.sheet xlsx;
> application/vnd.openxmlformats-officedocument.presentationml.presentation 
> pptx;
>
>     audio/midi                            mid midi kar;
>     audio/mpeg                            mp3;
>     audio/ogg                             ogg;
>     audio/x-m4a                           m4a;
>     audio/x-realaudio                     ra;
>
>     video/3gpp                            3gpp 3gp;
>     video/mp2t                            ts;
>     video/mp4                             mp4;
>     video/mpeg                            mpeg mpg;
>     video/quicktime                       mov;
>     video/webm                            webm;
>     video/x-flv                           flv;
>     video/x-m4v                           m4v;
>     video/x-mng                           mng;
>     video/x-ms-asf                        asx asf;
>     video/x-ms-wmv                        wmv;
>     video/x-msvideo                       avi;
> }
>
> # configuration file /etc/nginx/conf.d/development.conf:
> server {
>
>     # static medias web server configuration, for development
>     # and testing purposes.
>
>     listen       80;
>     server_name  localhost;
>     error_log /var/log/nginx/error_log; #debug
>     #access_log  /var/log/nginx/gthc.org/access.log;
>     root /home/erob/www/isotopesoftware.ca;
>     #autoindex on;
>
>     location / {
>     #    # host and port to fastcgi server
>         fastcgi_pass 127.0.0.1:8808; # 8808=gthc.org; 8801=tm
>         include fastcgi_params;
>         autoindex on;
>     #    # rewrite /CamelCase to /wiki/CamelCase
>     #    rewrite ^/(.*[A-Z][a-z]*)$ /wiki$1 last;
>         #etag on;
>     #fastcgi_pass_header $http_if_none_match;
>     }
>
>
>     # debug url rewriting to the error log
>     rewrite_log on;
>
>     location /media {
>         autoindex on;
>         gzip on;
>     }
>
>     location /pub {
>         autoindex on;
>         gzip on;
>     }
>
>     location /webalizer {
>         autoindex on;
>         gzip on;
>     #auth_basic "Private Property";
>     #auth_basic_user_file /etc/nginx/.htpasswd;
>         allow 67.68.76.70;
>     deny all;
>     }
>
>     location /documentation {
>         autoindex on;
>         gzip on;
>     }
>
>     location /moin_static184 {
>     autoindex on;
>     gzip on;
>     }
>     location /favicon.ico {
>     empty_gif;
>     }
>     location /robots.txt {
>          root /home/www/isotopesoftware.ca;
>     }
>     location /sitemap.xml {
>     root /home/www/isotopesoftware.ca;
>     }
>
>     #location /public_html {
>     # root /home/www/;
>     # autoindex on;
>     #}
>     # redirect server error pages to the static page /50x.html
>     #error_page 404 /404.html;
>     #error_page 403    /403.html;
>     #error_page 500 502 503 504  /50x.html;
>     #location = /50x.html {
>     #    root   /var/www/nginx-default;
>     #}
>
>     include conf.d/moinmoin.conf;
>     include conf.d/livestore.conf;
> }
>
>
> # configuration file /etc/nginx/fastcgi_params:
> fastcgi_param  PATH_INFO          $fastcgi_script_name;
> fastcgi_param  QUERY_STRING       $query_string;
> fastcgi_param  REQUEST_METHOD     $request_method;
> fastcgi_param  CONTENT_TYPE       $content_type;
> fastcgi_param  CONTENT_LENGTH     $content_length;
>
> fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
> fastcgi_param  REQUEST_URI        $request_uri;
> fastcgi_param  DOCUMENT_URI       $document_uri;
> fastcgi_param  DOCUMENT_ROOT      $document_root;
> fastcgi_param  SERVER_PROTOCOL    $server_protocol;
>
> fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
> fastcgi_param  SERVER_SOFTWARE    nginx;
>
> fastcgi_param  REMOTE_ADDR        $remote_addr;
> fastcgi_param  REMOTE_PORT        $remote_port;
> #fastcgi_param  REMOTE_USER      $remote_user;
> fastcgi_param  SERVER_ADDR        $server_addr;
> fastcgi_param  SERVER_PORT        $server_port;
> fastcgi_param  SERVER_NAME        $server_name;
>
>
> #XXX
> #fastcgi_param HTTP_IF_NONE_MATCH $http_if_none_match;
> #fastcgi_param HTTP_IF_MODIFIED_SINCE $http_if_modified_since;
>
>
> # PHP only, required if PHP was built with --enable-force-cgi-redirect
> # fastcgi_param  REDIRECT_STATUS    200;
>
> fastcgi_send_timeout 90;
> fastcgi_read_timeout 90;
> fastcgi_connect_timeout 40;
> fastcgi_cache_valid 200 304 10m;
> #fastcgi_buffer_size 128k;
> #fastcgi_buffers 8 128k;
> #fastcgi_busy_buffers_size 256k;
> #fastcgi_temp_file_write_size 256k;
>
>
> # configuration file /etc/nginx/conf.d/moinmoin.conf:
>
>
> location /wiki {
>
>
>       if ($uri ~ ^/wiki(.*)?){
>          set $wiki_url $1;
>       }
>       # host and port to fastcgi server
>       fastcgi_pass 127.0.0.1:8807; # 8808=gthc.org; 8801=tm; 
> 8807=moinmoin
>       #include fastcgi_params;
>       fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
>       fastcgi_param  SERVER_SOFTWARE    nginx;
>       fastcgi_param  QUERY_STRING       $query_string;
>       fastcgi_param  REQUEST_METHOD     $request_method;
>       fastcgi_param  CONTENT_TYPE       $content_type;
>       fastcgi_param  CONTENT_LENGTH     $content_length;
>       fastcgi_param  SCRIPT_FILENAME $document_root$fastcgi_script_name;
>       #fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
>       fastcgi_param  REQUEST_URI        $request_uri;
>       fastcgi_param  DOCUMENT_URI       $document_uri;
>       fastcgi_param  DOCUMENT_ROOT      $document_root;
>       fastcgi_param  SERVER_PROTOCOL    $server_protocol;
>       fastcgi_param  REMOTE_ADDR        $remote_addr;
>       fastcgi_param  REMOTE_PORT        $remote_port;
>       fastcgi_param  SERVER_ADDR        $server_addr;
>       fastcgi_param  SERVER_PORT        $server_port;
>       fastcgi_param  SERVER_NAME        $server_name;
>       fastcgi_param PATH_INFO $wiki_url;
>       fastcgi_param SCRIPT_NAME /wiki;
> }
> #location /moin_static184 {
> #    root /home/www/isotopesoftware.ca;
> #    autoindex on;
> #}
>
>
>
> # configuration file /etc/nginx/conf.d/livestore.conf:
>
>
> location /store {
>
>
>       if ($uri ~ ^/store(.*)?){
>          set $store_url $1;
>       }
>       # host and port to fastcgi server
>       fastcgi_pass 127.0.0.1:8809; # 8808=gthc.org; 8801=tm; 
> 8807=moinmoin
>       #include fastcgi_params;
>       fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
>       fastcgi_param  SERVER_SOFTWARE    nginx;
>       fastcgi_param  QUERY_STRING       $query_string;
>       fastcgi_param  REQUEST_METHOD     $request_method;
>       fastcgi_param  CONTENT_TYPE       $content_type;
>       fastcgi_param  CONTENT_LENGTH     $content_length;
>       fastcgi_param  SCRIPT_FILENAME $document_root$fastcgi_script_name;
>       #fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
>       fastcgi_param  REQUEST_URI        $request_uri;
>       fastcgi_param  DOCUMENT_URI       $document_uri;
>       fastcgi_param  DOCUMENT_ROOT      $document_root;
>       fastcgi_param  SERVER_PROTOCOL    $server_protocol;
>       fastcgi_param  REMOTE_ADDR        $remote_addr;
>       fastcgi_param  REMOTE_PORT        $remote_port;
>       fastcgi_param  SERVER_ADDR        $server_addr;
>       fastcgi_param  SERVER_PORT        $server_port;
>       fastcgi_param  SERVER_NAME        $server_name;
>       fastcgi_param PATH_INFO $store_url;
>       fastcgi_param SCRIPT_NAME /store;
> }
> location /satchmo_media {
>     root /home/www/livestore;
>     autoindex on;
>     gzip on;
>     expires 30d;
> }
>
> The problem is that nginx is duplicating the response body stream for 
> the /store location. This issue does not happen in WSGI mode.
>
> Any ideas how to fix?
>
> Thank you in advance,
>
> E
>
>
>
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>

-- 
Etienne Robillard
tkadm30 at yandex.com
http://www.isotopesoftware.ca/



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