nginx slow on every second request - node.js

Question

I'm currently creating an api for my website, using nodejs and nginx, I've setup reversed proxies for each nodejs app i'll have running (api, mainsite, other stuff..).
However, when i try my api, it will use a very long time on every second request, sometimes time out..
NGINX.CONF
# For more information on configuration, see:
# * Official English Documentation: http://nginx.org/en/docs/
# * Official Russian Documentation: http://nginx.org/ru/docs/
user nginx;
worker_processes 24;
error_log /var/log/nginx/error.log;
#error_log /var/log/nginx/error.log notice;
#error_log /var/log/nginx/error.log info;
pid /var/run/nginx.pid;
events {
worker_connections 19000;
multi_accept on;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
#SSL performance tuning
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers ECDHE-RSA-AES128-SHA384:AES256-SHA256:RC4:HIGH:!MD5:!aNULL:!eNULL:!NULL:!DH:!EDH:!AESGCM;
ssl_prefer_server_ciphers on;
ssl_session_cache shared:SSL:10m;
ssl_session_timeout 10m;
ssl_stapling on;
ssl_stapling_verify on;
resolver 8.8.8.8 8.8.4.4 valid=300s;
resolver_timeout 10s;
add_header Strict-Transport-Security "max-age=31536000";
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 10;
gzip on;
gzip_disable "msie6";
gzip_min_length 1000;
gzip_proxied expired no-cache no-store private auth;
gzip_types text/plain application/xml application/javascript text/css application/x-javascript;
#for mulyiple domains, www.codewolf.red, codewolf.red
server_names_hash_bucket_size 64;
# Load config files from the /etc/nginx/conf.d directory
# The default server is in conf.d/default.conf
include /etc/nginx/conf.d/*.conf;
}
ERROR.LOG
2014/10/27 14:26:46 [error] 6968#8992: *15 WSARecv() failed (10054: FormatMessage() error:(317)) while reading response header from upstream, client: ::1, server: localhost, request: "GET /api/ffd/users HTTP/1.1", upstream: "http://127.0.0.1:3000/ffd/users", host: "localhost"
2014/10/27 14:27:46 [error] 6968#8992: *15 upstream timed out (10060: FormatMessage() error:(317)) while connecting to upstream, client: ::1, server: localhost, request: "GET /api/ffd/users HTTP/1.1", upstream: "http://[::1]:3000/ffd/users", host: "localhost"
2014/10/27 14:39:31 [error] 6968#8992: *20 upstream timed out (10060: FormatMessage() error:(317)) while connecting to upstream, client: ::1, server: localhost, request: "GET /api/ffd/users HTTP/1.1", upstream: "http://[::1]:3000/ffd/users", host: "localhost"
2014/10/27 14:40:09 [notice] 5300#1352: signal process started
Any idea whats wrong?
It's been like this for a while, and its killing me :(
Please help, it's ruining my time for developing apps :/

Answer 1

Adding this because this is what worked for me
https://forum.nginx.org/read.php?15,239760,239760 Seems to indicate that you can proxy_pass to 127.0.0.1 instead of localhost and the request goes through fine
macbresch
One year old but I wanted to point out that there is a work around for that issue. Like Cruz Fernandez wrote you can set 127.0.0.1 instead of localhost on the proxy_pass directive. This prevents the 60s delay on every second request. I'm using Windows 8.1 and nginx 1.9.5.
Cruz Fernandez Wrote:
you can use 127.0.0.1 (instead of localhost on the proxy_pass directive)
location /nodejsServer/ {
proxy_pass http://127.0.0.1:3000/;
}

Answer 2

I was able to fix this by using an upstream statement.
eg. :
upstream nodejs_server {
server 192.168.0.67:8080; #ip to nodejs server
}
#server config
server {
location /nodejsServer/ { #http://localhost/nodejsServer/
proxy_pass http://nodejs_server;
}
}
reference: http://nginx.org/en/docs/http/ngx_http_upstream_module.html