我正在使用由NGINX提供服务的Flask应用。我在NGINX方面遇到了很大的延迟，并且不确定如何优化NGINX配置。任何帮助非常感谢。
我的Flask应用程序返回约60毫秒的每个获取请求和一个示例日志来自跟踪请求之前和请求函数显示此。
DEBUG in main [/var/repo/perilback/main.py:89]:
1479816636.5895524(before request)
DEBUG in main [/var/repo/perilback/main.py:156]:
Hello_world (app)
DEBUG in main [/var/repo/perilback/main.py:112]:
1479816636.5905082 (after request)
DEBUG in main [/var/repo/perilback/main.py:114]:
0.0009558200836181641 (time difference)
接下来，我转向NGINX并从日志中看到，由于它，我经历了大约600毫秒的延迟。下面给出了日志，最后一个值显示了以秒为单位的延迟。
127.0.0.1 - - [2016-11-22 17:40:36] "GET / HTTP/1.0" 200 458 0.563412
我的nginx.conf如下：
user www-data;
worker_processes 4;
pid /run/nginx.pid;
worker_rlimit_nofile 20480;
events {
worker_connections 5120 ;
multi_accept on;
}
http {
##
# Basic Settings
##
sendfile on;
tcp_nopush on;
#tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
# server_tokens off;
server_names_hash_bucket_size 128;
# server_name_in_redirect off;
include /etc/nginx/mime.types;
default_type application/octet-stream;
##
# Logging Settings
##
log_format timed '$remote_addr - $remote_user [$time_local] '
'"$request" $status $body_bytes_sent '
'"$http_referer" "$http_user_agent" '
'$request_time $upstream_response_time $pipe';
access_log /var/log/nginx/access.log timed;
error_log /var/log/nginx/error.log;
##
# Gzip Settings
##
gzip on;
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/x-javascript text/xml application/xml application/xml+rss text/javascript;
##
# nginx-naxsi config
##
# Uncomment it if you installed nginx-naxsi
##
#include /etc/nginx/naxsi_core.rules;
##
# nginx-passenger config
##
# Uncomment it if you installed nginx-passenger
##
#passenger_root /usr;
#passenger_ruby /usr/bin/ruby;
##
# Virtual Host Configs
##
include /etc/nginx/conf.d/*.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;
# }
#}
我的网站可用/文件如下：
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# http://wiki.nginx.org/Pitfalls
# http://wiki.nginx.org/QuickStart
# http://wiki.nginx.org/Configuration
#
# Generally, you will want to move this file somewhere, and start with a clean
# file but keep this around for reference. Or just disable in sites-enabled.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##
server {
listen 80 default_server;
listen [::]:80 default_server ipv6only=on ;
server_name example.com;
root /var/www/TeaserPage/www/;
location / {
index index.htm index.html;
try_files $uri $uri/ =404;
}
location /test/ {
root /var/www/test/;
index index.htm index.html;
try_files $uri $uri/ =404;
}
location /db/ {
proxy_pass http://127.0.0.1:5984/;
proxy_redirect off;
}
location /api/ {
proxy_pass http://127.0.0.1:5000/;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
# Only for nginx-naxsi used with nginx-naxsi-ui : process denied requests
#location /RequestDenied {
# proxy_pass http://127.0.0.1:8080;
#}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
#error_page 500 502 503 504 /50x.html;
#location = /50x.html
# root /usr/share/nginx/html;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# fastcgi_split_path_info ^(.+\.php)(/.+)$;
# # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
#
# # With php5-cgi alone:
# fastcgi_pass 127.0.0.1:9000;
# # With php5-fpm:
# fastcgi_pass unix:/var/run/php5-fpm.sock;
# fastcgi_index index.php;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}
# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
#root /var/www/TeaserPage/www/;
# location / {
# index index.htm index.html;
# try_files $uri $uri/ =404;
# }
# listen 8000;
# listen somename:8080;
# server_name somename alias another.alias;
# root html;
# index index.html index.htm;
#
# location / {
# try_files $uri $uri/ =404;
# }
#}
# HTTPS server
#
server {
listen 443;
server_name ec2-52-66-164-35.ap-south-1.compute.amazonaws.com;
# root html;
# index index.html index.htm;
ssl on;
ssl_certificate /etc/nginx/perilwise.crt;
ssl_certificate_key /etc/nginx/perilwise.key;
ssl_session_timeout 5m;
ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers "HIGH:!aNULL:!MD5 or HIGH:!aNULL:!MD5:!3DES";
ssl_prefer_server_ciphers on;
root /var/www/TeaserPage/www/;
location / {
index index.htm index.html;
try_files $uri $uri/ =404;
}
location /api/ {
proxy_pass http://127.0.0.1:5000/;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
# location /
# try_files $uri $uri/ =404;
# }
}