Estou usando o NGINX como um proxy da Web reverso para um servidor da Web do IIS upstream. Eu sou proxy_pass'ing para uma ligação https no servidor IIS, então eu entendo SSL está sendo criptografado / descriptografado duas vezes, mas não deve ser tão lento como é.
NGINX versão 1.4.4
OpenSSL versão 1.0.1f
Coisas que eu tentei:
Usando o ApacheBench para testes:
Solicitações por segundo:
Exemplo de saída do ApacheBench:
abs -c 100 -n 1000 h ttps://nginxtest1.mydomain.com/
Benchmarking nginxtest1.mydomain.com (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests
Server Software: nginx/1.4.3
Server Hostname: nginxtest1.mydomain.com
Server Port: 443
SSL/TLS Protocol: TLSv1,ECDHE-RSA-AES256-SHA,2048,256
Document Path: /
Document Length: 659 bytes
Concurrency Level: 100
Time taken for tests: 3.493 seconds
Complete requests: 1000
Failed requests: 0
Total transferred: 917000 bytes
HTML transferred: 659000 bytes
Requests per second: 286.27 [#/sec] (mean) <-----?????
Time per request: 349.320 [ms] (mean)
Time per request: 3.493 [ms] (mean, across all concurrent requests)
Transfer rate: 256.36 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 39 149 48.4 148 340
Processing: 47 180 179.2 163 3156
Waiting: 25 133 182.8 107 3130
Total: 145 330 181.7 320 3213
Percentage of the requests served within a certain time (ms)
50% 320
66% 331
75% 339
80% 355
90% 431
95% 502
98% 529
99% 533
100% 3213 (longest request)
nginx.conf:
worker_processes auto;
events {
worker_connections 1024;
debug_connection 192.168.2.98;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
lingering_time 240;
client_max_body_size 100m;
ssl_session_cache shared:SSL:10m;
include /usr/local/nginx/conf/srvnj04.conf;
gzip on;
gzip_disable "msie6";
gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
}
srvnj04.conf:
server {
listen 80;
server_name nginxtest1.mydomain.com;
log_format custom4 '$remote_addr '
'Conn: $connection ' #connection serial number
'Conn reqs: $connection_requests' #the current number of requests made through a connection
'$status '
'$http_referer '
#'$body_bytes_sent '
'$request '
#'"$http_user_agent" '
'Processing: $request_time '
'Response: $upstream_response_time ';
#'$bytes_sent '
#'$request_length';
access_log /var/log/nginx/srvnj04_access.log custom4;
error_log /var/log/nginx/srvnj04_error.log debug;
ssl off;
location / {
#empty_gif;
proxy_pass http://nginxtest2.appsrv008.mydomain.com;
}
}
upstream https_backend {
server 192.168.2.4:444;
#keepalive 32;
keepalive 128;
}
server {
listen 443 ssl so_keepalive=0h:5m:0;
server_name nginxtest1.mydomain.com;
keepalive_timeout 54;
keepalive_requests 128;
error_log /var/log/nginx/nginx_debug_srvnj04.log debug;
ssl on;
ssl_certificate ssl/star_mydomain_net_sol_CA_srvnj04b.cer;
ssl_certificate_key ssl/star_mydomain_net_sol.key;
ssl_dhparam ssl/dhparam.pem;
ssl_protocols SSLv3 TLSv1.2 TLSv1 TLSv1.1;
ssl_ciphers RC4:HIGH:!aNULL:!MD5:!kEDH;
ssl_prefer_server_ciphers on;
ssl_session_cache shared:SSL:10m;
ssl_session_timeout 10m;
location / {
#proxy_pass https://nginxtest1.mydomain.com;
proxy_pass https://https_backend;
}
}
Estou estudando isso há cerca de uma semana; qualquer percepção do que poderia estar errado seria muito apreciada.
Como solicitado, saída AB:
HTTPS
# abs -c 100 -n 1000 #https://nginxtest1.mydomain.com/
This is ApacheBench, Version 2.3 <$Revision: 1528965 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking nginxtest1.mydomain.com (be patient)
Completed 100 requests
Completed 200 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests
Server Software: nginx/1.4.3
Server Hostname: nginxtest1.mydomain.com
Server Port: 443
SSL/TLS Protocol: TLSv1,ECDHE-RSA-AES256-SHA,2048,256
Document Path: /
Document Length: 334 bytes
Concurrency Level: 100
Time taken for tests: 3.458 seconds
Complete requests: 1000
Failed requests: 0
Non-2xx responses: 1000
Total transferred: 503000 bytes
HTML transferred: 334000 bytes
Requests per second: 289.17 [#/sec] (mean)
Time per request: 345.820 [ms] (mean)
Time per request: 3.458 [ms] (mean, across all concurrent requests)
Transfer rate: 142.04 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 54 186 73.7 174 509
Processing: 25 143 35.8 143 227
Waiting: 22 79 25.7 80 164
Total: 91 329 80.5 316 663
Percentage of the requests served within a certain time (ms)
50% 316
66% 318
75% 323
80% 334
90% 404
95% 542
98% 568
99% 595
100% 663 (longest request)
HTTP
# abs -c 100 -n 1000 http://nginxtest1.mydomain.com/
This is ApacheBench, Version 2.3 <$Revision: 1528965 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking nginxtest1.mydomain.com (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Completed 600 requests
Completed 700 requests
Completed 800 requests
Completed 900 requests
Completed 1000 requests
Finished 1000 requests
Server Software: nginx/1.4.3
Server Hostname: nginxtest1.mydomain.com
Server Port: 80
Document Path: /
Document Length: 659 bytes
Concurrency Level: 100
Time taken for tests: 0.772 seconds
Complete requests: 1000
Failed requests: 0
Total transferred: 917000 bytes
HTML transferred: 659000 bytes
Requests per second: 1295.26 [#/sec] (mean)
Time per request: 77.204 [ms] (mean)
Time per request: 0.772 [ms] (mean, across all concurrent requests)
Transfer rate: 1159.92 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.5 0 2
Processing: 33 68 27.7 53 296
Waiting: 12 65 28.4 53 145
Total: 34 69 27.7 54 297
Percentage of the requests served within a certain time (ms)
50% 54
66% 86
75% 94
80% 97
90% 103
95% 108
98% 113
99% 122
100% 297 (longest request)
I understand SSL is being encrypted/decrypted twice- but it shouldn't be as slow as it is.
Por que não? Por favor, note que não é apenas criptografia / descriptografia dupla, ela também adiciona mais um handshake TCP + TLS por solicitação. Para minimizar a sobrecarga do handshake, você deve usar as conexões keepalive: link
Mas, em geral, o que você está fazendo é uma prática ruim, você deve usar o túnel IPSec.