Reputation: 303
While trying to see why my site is sometimes slow I have logged the response time. Just saw that even on static files my server sometimes responds in over 10 seconds. There seems to be no connection with cpu load: cpu never exceeds 15-20%. From the logs I have extracted the requests that take a long time(time is at end in format xx.xxx):
5.12.91.156 - - [14/Nov/2015:08:10:38 -0500] "GET /images/favicons.ico HTTP/1.1" 200 1150 "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36 OPR/33.0.1990.58" 11.016 - .
109.98.160.230 - - [14/Nov/2015:08:10:48 -0500] "GET /images/favicons.ico HTTP/1.1" 200 1150 "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36" 10.570 - .
188.36.248.14 - - [14/Nov/2015:08:11:38 -0500] "GET /img/aaaaaa.jpg HTTP/1.1" 200 50415 "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36" 15.209 - .
31.13.112.119 - - [14/Nov/2015:10:05:47 -0500] "GET /img/bbbbbb.jpg HTTP/1.1" 206 42511 "-" "facebookexternalhit/1.1" 16.658 - .
31.13.112.118 - - [14/Nov/2015:10:05:47 -0500] "GET /img/bbbbbb.jpg HTTP/1.1" 206 42511 "-" "facebookexternalhit/1.1" 16.655 - .
77.119.130.173 - - [14/Nov/2015:10:06:19 -0500] "GET /css/stylo-1.css HTTP/1.1" 200 6933 "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36" 11.211 - .
173.252.73.112 - - [14/Nov/2015:10:08:42 -0500] "GET /img/cccccc.jpg HTTP/1.1" 200 78396 "-" "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)" 19.288 - .
79.113.19.0 - - [14/Nov/2015:10:09:40 -0500] "GET /js/responds.js HTTP/1.1" 200 3627 "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0" 30.451 - .
my nginx config is very basic:
user www-data;
worker_processes 4;
pid /run/nginx.pid;
events {
worker_connections 768;
# 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 64;
# server_name_in_redirect off;
include /etc/nginx/mime.types;
default_type application/octet-stream;
##
# Logging Settings
##
log_format timed_combined '$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_combined;
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/*;
}
I can't figure out what the problem is :(
Upvotes: 2
Views: 1940
Reputation: 303
I had to drop that VPS completely. I installed everything on a brand new VPS and everything is fine.
I still don't know what the problem was but since it doesn't happen on the new server I don't care what it was.
Upvotes: 2