Hello,

We're using nginx as reverse proxy in front of apache and
following error occurs most of the time :

2014/06/02 01:00:28 [error] 3288#0: *6492138 recv() failed (104: Connection
reset by peer) while reading response header from upstream, client:
141.0.10.83, server: domain.com, request: "GET /rss/recent HTTP/1.1",
upstream: "http://127.0.0.1:7172/rss/recent", host: "domain.com"
2014/06/02 01:00:29 [error] 3288#0: *6492143 recv() failed (104: Connection
reset by peer) while reading response header from upstream, client:
141.0.8.54, server: domain.com, request: "GET /rss/recent HTTP/1.1",
upstream: "http://127.0.0.1:7172/rss/recent", host: "domain.com"
2014/06/02 01:00:31 [error] 3285#0: *6492195 recv() failed (104: Connection
reset by peer) while reading response header from upstream, client:
119.160.119.47, server: domain.com, request: "GET
/video/2437706/18-xxx-sex-hot HTTP/1.1", upstream: "
http://127.0.0.1:7172/video/2437706/18-xxx-sex-hot", host: "domain.com",
referrer: "http://www.google.com.pk/search?hl=en&ie=ISO-8859-1&q=xxxsex"

Following is the nginx.conf :

user tune;
# no need for more workers in the proxy mode
worker_processes 16;
error_log /var/log/nginx/error.log error;
error_log /var/log/nginx/error.log crit;
#error_log /var/log/nginx/error.log;
worker_rlimit_nofile 409600;
events {
worker_connections 102400; # increase for busier servers
use epoll; # you should use epoll here for Linux kernels 2.6.x
}
http {
server_name_in_redirect off;
server_names_hash_max_size 10240;
proxy_read_timeout 900;
fastcgi_read_timeout 900;
server_names_hash_bucket_size 1024;
include mime.types;
default_type application/octet-stream;
server_tokens off;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 5;
gzip on;
gzip_vary on;
gzip_disable "MSIE [1-6]\.";
gzip_proxied any;
gzip_http_version 1.0;
gzip_min_length 1000;
gzip_comp_level 6;
gzip_buffers 16 8k;
# You can remove image/png image/x-icon image/gif image/jpeg if you have
slow CPU
gzip_types text/plain text/xml text/css application/x-javascript
application/javascript application/xml application/xml+rss text/javascript
application/atom+xml;
ignore_invalid_headers on;
client_header_timeout 3m;
client_body_timeout 3m;
send_timeout 3m;
reset_timedout_connection on;
connection_pool_size 256;
client_header_buffer_size 256k;
large_client_header_buffers 4 256k;
client_max_body_size 2000M;
client_body_buffer_size 128k;
request_pool_size 32k;
output_buffers 4 32k;
postpone_output 1460;
client_body_in_file_only on;
log_format bytes_log "$msec $bytes_sent .";
include "/etc/nginx/conf.d/virtual.conf";
include "/etc/nginx/conf.d/beta.conf";
include "/etc/nginx/conf.d/admin.conf";
#include "/etc/nginx/conf.d/admin-ssl.conf";

}

Regards.
Shahzaib
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