bodnar1212

# get total requests by status code
awk '{print $9}' /var/log/nginx/access.log | sort | uniq -c | sort -rn

# get top requesters by IP
awk '{print $1}' /var/log/nginx/access.log | sort | uniq -c | sort -rn | head | awk -v OFS='\t' '{"host " $2 | getline ip; print $0, ip}'

# get top requesters by user agent
awk -F'"' '{print $6}' /var/log/nginx/access.log | sort | uniq -c | sort -rn | head

# get top requests by URL

bodnar1212

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

bodnar1212

accept_filter              off [bool] (default)
acceptor_sleep_decay       0.9 (default)
acceptor_sleep_incr        0.000 [seconds] (default)
acceptor_sleep_max         0.050 [seconds] (default)
auto_restart               on [bool] (default)
backend_idle_timeout       60.000 [seconds] (default)
ban_dups                   on [bool] (default)
ban_lurker_age             60.000 [seconds] (default)
ban_lurker_batch           1000 (default)
ban_lurker_sleep           0.010 [seconds] (default)