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Configuring NGINX for Maximum Throughput Under High Concurrency
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user web; | |
# One worker process per CPU core. | |
worker_processes 8; | |
# Also set | |
# /etc/security/limits.conf | |
# web soft nofile 65535 | |
# web hard nofile 65535 | |
# /etc/default/nginx | |
# ULIMIT="-n 65535" | |
worker_rlimit_nofile 65535; | |
pid /run/nginx.pid; | |
events { | |
# | |
# Determines how many clients will be served by each worker process. | |
# (Max clients = worker_connections * worker_processes) | |
# Should be equal to `ulimit -n` | |
# | |
worker_connections 65535; | |
# | |
# Let each process accept multiple connections. | |
# Accept as many connections as possible, after nginx gets notification | |
# about a new connection. | |
# May flood worker_connections, if that option is set too low. | |
# | |
multi_accept on; | |
# | |
# Preferred connection method for newer linux versions. | |
# Essential for linux, optmized to serve many clients with each thread. | |
# | |
use epoll; | |
} | |
http { | |
## | |
# Basic Settings | |
## | |
# | |
# Override some buffer limitations, will prevent DDOS too. | |
# | |
client_body_buffer_size 10K; | |
client_header_buffer_size 1k; | |
client_max_body_size 8m; | |
large_client_header_buffers 2 1k; | |
# | |
# Timeouts | |
# The client_body_timeout and client_header_timeout directives are | |
# responsible for the time a server will wait for a client body or | |
# client header to be sent after request. If neither a body or header | |
# is sent, the server will issue a 408 error or Request time out. | |
# | |
# The keepalive_timeout assigns the timeout for keep-alive connections | |
# with the client. Simply put, Nginx will close connections with the | |
# client after this period of time. | |
# | |
# Finally, the send_timeout is a timeout for transmitting a response | |
# to the client. If the client does not receive anything within this | |
# time, then the connection will be closed. | |
# | |
# | |
# send the client a "request timed out" if the body is not loaded | |
# by this time. Default 60. | |
# | |
client_body_timeout 32; | |
client_header_timeout 32; | |
# | |
# Every 60 seconds server broadcasts Sync packets, so 90 is | |
# a conservative upper bound. | |
# | |
keepalive_timeout 90; # default 65 | |
send_timeout 120; # default 60 | |
# | |
# Allow the server to close the connection after a client stops | |
# responding. | |
# Frees up socket-associated memory. | |
# | |
reset_timedout_connection on; | |
# | |
# Open file descriptors. | |
# Caches information about open FDs, freqently accessed files. | |
# | |
open_file_cache max=200000 inactive=20s; | |
open_file_cache_valid 30s; | |
open_file_cache_min_uses 2; | |
open_file_cache_errors on; | |
# | |
# Sendfile copies data between one FD and other from within the kernel. | |
# More efficient than read() + write(), since the requires transferring | |
# data to and from the user space. | |
# | |
sendfile on; | |
# Tcp_nopush causes nginx to attempt to send its HTTP response head in one | |
# packet, instead of using partial frames. This is useful for prepending | |
# headers before calling sendfile, or for throughput optimization. | |
tcp_nopush on; | |
# | |
# don't buffer data-sends (disable Nagle algorithm). Good for sending | |
# frequent small bursts of data in real time. | |
# | |
tcp_nodelay on; | |
types_hash_max_size 2048; | |
include /etc/nginx/mime.types; | |
default_type application/octet-stream; | |
## | |
# Logging Settings | |
## | |
# | |
# Use analytics to track stuff instead of using precious file IO resources. | |
# Disabling logging speeds up IO. | |
# | |
access_log off; | |
error_log /root/PROJECTS/logs/error.log crit; | |
## | |
# Gzip Settings | |
## | |
gzip on; | |
gzip_disable "MSIE [1-6]\."; | |
# Only allow proxy request with these headers to be gzipped. | |
gzip_proxied expired no-cache no-store private auth; | |
# Default is 6 (1<n<9), but 2 -- even 1 -- is enough. The higher it is, the | |
# more CPU cycles will be wasted. | |
gzip_comp_level 9; | |
gzip_min_length 500; # Default 20 | |
gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript; | |
## | |
# Virtual Host Configs | |
## | |
include /etc/nginx/conf.d/*.conf; | |
} |
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