1. study2study #4
-Nginx -
@n0ts
Naoya NAKAZAWA
11/11/2011

2. who?
• @n0ts
• Naoya NAKAZAWA
•
• 22.5 /

4. nginx.conf
http://wiki.nginx.org/
NginxFullExample
line 1-24

5. line 1
user www www;

6. user www www;
line 1
: nobody nobody
root
setuid()/setguid()

7. line 2
worker_processes 5;

8. line 2
worker_processes 5;
: wroker_processes < >
:1
CPU nginx
CPU

9. worker_processes 5;
cont ;
- SMP
- I/O
- select()/poll() 1
events

10. line 3
error_log logs/error.log;

11. error_log logs/error.log;
line 3
: error_log < > [ debug | info | notice | warn | error | crit ]
: ${prefix}/logs/error.log
(fastcgi )
- main : error
- HTTP : crit
- server : crit
VirtualHost

12. line 4
pid logs/nginx.pid;

13. pid logs/nginx.pid;
line 4
: pid < >
PID
HUP
# kill -HUP `cat logs/nginx.pid`

14. line 5
worker_rlimit_nofile 8192;

15. worker_rlimit_nofile 8192;
line 5
: worker_rlimit_nofile < >
: OS

16. line 7
events {

17. events {
line 7
Events
Nginx
accept_mutex, accept_mutex_delay,
debug_connection, devpoll_changes, devpoll_events,
kqueue_changes, kqueue_events, epoll_events,
multi_accept, rtsig_signo, rtsig_overflow_events,
rtsig_overflow_test, rtsig_overflow_threshold, use,
worker_connections

18. line 8
worker_connections 4096;

19. worker_connections 4096;
line 8
: worker_connections < >
: ?
max_clients = worker_processes * worker_connections
max_clients = worker_processes * worker_connectins / 4

20. line 9
}

21. }
line 9

22. line 11
http {

23. http {
line 11
HTTP
Nginx HTTP
64

24. line 12
include conf/mime.types;

25. include conf/mime.types;
line 12
: include < >
:
v0.4.4
include vhosts/*.conf;

26. line 13
include /etc/nginx/proxy.conf;

27. include /etc/nginx/proxy.conf;
line 13

28. line 14
include /etc/nginx/fastcgi.conf

29. include /etc/nginx/fastcgi.conf
line 14

30. line 15
index index.html index.htm index.php;

31. line 15
index index.html index.htm index.php;
: index < >
: index.html

32. line 17
default type application/octet-stream;

33. line 17
default type application/octet-stream;
: default_type <MIME >
text/plain
MIME
MIME

34. line 18-20
log_format main
'$remote_addr - $remote_user [$time_local] $status '
'"$request" $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';

35. log_format main
line 18-20
'$remote_addr - $remote_user [$time_local] $status '
'"$request" $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
: log_format < >< >
: log_format combined “...”
%b Apache mod_log_config
combined
log_format combined ‘$remote_addr - $remote_user [$time_local] ‘
‘“$request” $status $body_bytes_sent ‘
‘“$http_referer” “$http_user_agent”’;

36. line 21
access_log logs/access.log main;

37. access_log logs/access.log main;
line 21
: access_log < > [< >[ = ]] | off
: log/access.log combined

38. line 22
sendfile on;

39. line
sendfile on; 22
: sendfile [on | off]
: sendfile off
sendfile()

40. line 23
tcp_nopush on;

41. tcp_nopush on;
line 23
: tcp_nopush [on | off]
: off
FreeBSD
TCP_NOPUSH Linux TCP_CORK
sendfile

42. line 24
server_name_hash_bucket_size 128;

43. server_name_hash_bucket_size 128;
line 24
: server_names_hash_bucket_size >
: 32/64/128
CPU

45. Thanks!