Hi folks,
I’m deeply testing NGINX to understand boundaries and limits because I’d
like to create a webservice for an high performance application in our
LAN. I’m currently running NGINX 1.2.1 on Linux and I’m just serving a
static webpage (“Hello World”) to see
performances. This website is accessed on localhost from a dummy bash
script:
#!/bin/bash
for i in {0…50000}; do
echo $i
wget http://127.0.0.1/test.html -q -O - >> /dev/null
done
In other terminals I’m monitoring sockets and their status ( netstat -an
|grep WAIT|wc -l )
When I run the bash script I can see no troubles until I reach 28233
TIME_WAIT connections, then it freezes for a while until some TIME_WAIT
connections are closed. Performances are ok until I reach this limit,
then everything is frozen for a while until TCP time_wait connections
are disposed
After few researches with google I’ve found these info:
http://developerweb.net/viewtopic.php?id=2941
http://developerweb.net/viewtopic.php?id=2982
I’m running tests on a pretty fast machine: Intel core i7 with 8Gb RAM
and a Gentoo Linux OS with kernel 3.12, is there a way to get a rid of
this limit ? I’ll post here my nginx.conf but please let me know if you
need more info or config files
user nginx nginx;
worker_processes 1;
error_log /var/log/nginx/error_log info;
events {
worker_connections 1024;
use epoll;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main
'$remote_addr - $remote_user [$time_local] ’
'“$request” $status $bytes_sent ’
'“$http_referer” “$http_user_agent” ’
‘“$gzip_ratio”’;
client_header_timeout 10m;
client_body_timeout 10m;
send_timeout 10m;
connection_pool_size 256;
client_header_buffer_size 1k;
large_client_header_buffers 4 2k;
request_pool_size 4k;
gzip on;
gzip_min_length 1100;
gzip_buffers 4 8k;
gzip_types text/plain;
output_buffers 1 32k;
postpone_output 1460;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 75 20;
ignore_invalid_headers on;
index index.php index.html;
server {
listen 127.0.0.1;
server_name localhost;
root /var/www/localhost/htdocs;
location ~ .*.php$ {
include /etc/nginx/fastcgi.conf;
fastcgi_pass 127.0.0.1:1234;
fastcgi_index index.php;
}
}
}
Thanks in advance for your reply
Ben
Posted at Nginx Forum: