I'm testing my Nginx web server (configured with CentminMod) with https://www.blitz.io/ and the server returns timeouts when the connected users are about 40.
I can't understand why! It's Nginx, not Apache! Can anyone help me?
This i my nginx.conf:
user nginx nginx;
worker_processes 1;
worker_priority -10;
worker_rlimit_nofile 260000;
timer_resolution 100ms;
error_log logs/error.log;
pid logs/nginx.pid;
pcre_jit on;
events {
worker_connections 2048;
accept_mutex on;
accept_mutex_delay 100ms;
use epoll;
#multi_accept on;
}
http {
include /usr/local/nginx/conf/pagespeedadmin.conf;
include /usr/local/nginx/conf/fastcgi_param_https_map.conf;
log_format main '$remote_addr - $remote_user [$time_local] $request '
'"$status" $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for" "$gzip_ratio"'
' "$connection" "$connection_requests" "$request_time"';
access_log logs/access.log combined buffer=32k;
index index.php index.html index.htm;
include mime.types;
default_type application/octet-stream;
charset utf-8;
sendfile on;
#sendfile_max_chunk 1m;
tcp_nopush on;
tcp_nodelay off;
server_tokens off;
server_name_in_redirect off;
keepalive_timeout 10;
keepalive_requests 100;
lingering_time 20s;
lingering_timeout 5s;
keepalive_disable msie6;
gzip on;
gzip_vary on;
gzip_disable "MSIE [1-6]\.";
gzip_static on;
gzip_min_length 1400;
gzip_buffers 32 8k;
gzip_http_version 1.0;
gzip_comp_level 5;
gzip_proxied any;
gzip_types text/plain text/css text/xml application/javascript application/x-javascript application/xml application/xml+rss application/ecmascript application/json image/svg+xml;
client_body_buffer_size 256k;
client_body_in_file_only off;
client_body_timeout 60s;
client_header_buffer_size 64k;
## how long a connection has to complete sending
## it's headers for request to be processed
client_header_timeout 20s;
client_max_body_size 10m;
connection_pool_size 512;
directio 4m;
ignore_invalid_headers on;
large_client_header_buffers 8 64k;
output_buffers 8 256k;
postpone_output 1460;
proxy_temp_path /tmp/nginx_proxy/;
request_pool_size 32k;
reset_timedout_connection on;
send_timeout 60s;
types_hash_max_size 2048;
server_names_hash_bucket_size 64;
# for nginx proxy backends to prevent redirects to backend port
# port_in_redirect off;
open_file_cache max=10000 inactive=30s;
open_file_cache_valid 120s;
open_file_cache_min_uses 2;
open_file_cache_errors off;
open_log_file_cache max=4096 inactive=30s min_uses=2;
## limit number of concurrency connections per ip to 16
## add to your server {} section the next line
## limit_conn limit_per_ip 16;
## uncomment below line allows 500K sessions
# limit_conn_log_level error;
#######################################
# use limit_zone for Nginx <v1.1.7 and lower
# limit_zone $binary_remote_addr zone=limit_per_ip:16m;
#######################################
# use limit_conn_zone for Nginx >v1.1.8 and higher
# limit_conn_zone $binary_remote_addr zone=limit_per_ip:16m;
#######################################
include /usr/local/nginx/conf/conf.d/*.conf;
}
And this is my server block:
server {
listen 8080;
server_name beta.architetturaecosostenibile.it www.beta.architetturaecosostenibile.it;
#pagespeed off;
# ngx_pagespeed & ngx_pagespeed handler
#include /usr/local/nginx/conf/pagespeed.conf;
#include /usr/local/nginx/conf/pagespeedhandler.conf;
#include /usr/local/nginx/conf/pagespeedstatslog.conf;
# limit_conn limit_per_ip 16;
# ssi on;
access_log /home/nginx/domains/beta.architetturaecosostenibile.it/log/access.log combined buffer=32k;
error_log /home/nginx/domains/beta.architetturaecosostenibile.it/log/error.log debug;
rewrite_log on;
root /home/nginx/domains/beta.architetturaecosostenibile.it/public;
# PageSpeed enhancements
pagespeed EnableFilters remove_comments,collapse_whitespace;
include /usr/local/nginx/conf/staticfiles.conf;
include /usr/local/nginx/conf/php.conf;
include /usr/local/nginx/conf/drop.conf;
#include /usr/local/nginx/conf/errorpage.conf;
}