17 KiB
17 KiB
| title | author | date | url | wordtwit_post_info | categories | ||
|---|---|---|---|---|---|---|---|
| さくら VPS の Web サーバ変更を検討中 | kazu634 | 2011-02-02 | /2011/02/02/_1658/ |
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さくら VPS の Web サーバを Apache2 から nginx へ変更することを検討しています。特に理由はないのですが、強いて言えば
- レスポンスの向上
- 軽量な Web サーバを試してみたかった！
といったところです。
軽量な Web サーバを調べてみた
Apache以外の軽量なWebサーバとして有名なものとして、以下の二つを発見しました:
- lighttpd
- nginx
lighttpd
軽量な Web サーバとしてはじめに検討したのが、lighttpd でした。これはネーミングからして簡単に推測できます。Light な httpd です。こいつは Web サーバのみの機能を持ち、軽量なようです。しかし、次の記事を読んで nginx に心移りしてしまったのです。
nginx
nginx は Engine X (エンジン・エックス) と発音します。軽量な Web サーバ かつ、リバースプロキシサーバです。プロキシサーバも兼ねる、という点が私の心にヒットしました。普通はこのような構成になるはずなんです:
それが nginx を導入するだけで、
という構成が簡単に作れるのです。nginxを覚えれば、一度で Web サーバとリバースプロキシーを作れちゃうのがお得♪という感じなわけです。
まとめ
とりあえず nginx で頑張ってみる。ローカルの環境だと、なぜかリバースプロキシーをかませるとレスポンス悪くなるんだけど、これはなぜなのだろう。。。もう少し検証してみることにしよう。
追記
nginx.conf
# You may add here your # server { # ... # } # statements for each of your virtual hosts server { listen 8001; server_name srv634; access_log /var/log/nginx/nginx.access.log; location / { root /var/www/nginx-default; index index.html index.htm index.php; } location /wordpress { root /var/www/nginx-default; index index.php; if (-f $request_filename) { expires 30d; break; } if (!-e $request_filename) { rewrite ^.+?(/wp-.*) $1 last; rewrite ^.+?(/.*\.php)$ $1 last; rewrite ^ /wordpress/index.php last; } } location ~ \.php$ { include /etc/nginx/fastcgi_params; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /var/www/nginx-default$fastcgi_script_name; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # #error_page 500 502 503 504 /50x.html; #location = /50x.html { # root /var/www/nginx-default; #} # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { #proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ \.php$ { #fastcgi_pass 127.0.0.1:9000; #fastcgi_index index.php; #fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; #includefastcgi_params; #} # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { #deny all; #} } upstream backend { ip_hash; server 127.0.0.1:8001; } server { listen 80; server_name srv634; access_log /var/log/nginx/front_proxy.access.log; error_log /var/log/nginx/front_proxy.error.log; location /wp-admin { proxy_pass http://backend; } location /wp-login.php { proxy_pass http://backend; } location / { proxy_pass http://backend; proxy_cache czone; proxy_cache_key $scheme$proxy_host$uri$is_args$args; proxy_cache_valid 200 10m; } }
abの結果(リバースプロキシーをかませない場合)
kazu634@kazu634% ab -n 5000 -c 100 http://srv634:8001/wordpress ~ [1682] This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking srv634 (be patient) Completed 500 requests Completed 1000 requests Completed 1500 requests Completed 2000 requests Completed 2500 requests Completed 3000 requests Completed 3500 requests Completed 4000 requests Completed 4500 requests Completed 5000 requests Finished 5000 requests Server Software: nginx/.7.65 Server Hostname: srv634 Server Port: 8001 Document Path: /wordpress Document Length: 185 bytes Concurrency Level: 100 Time taken for tests: 1.890 seconds Complete requests: 5000 Failed requests: Write errors: Non-2xx responses: 5000 Total transferred: 1920000 bytes HTML transferred: 925000 bytes Requests per second: 2645.01 [#/sec] (mean) Time per request: 37.807 [ms] (mean) Time per request: .378 [ms] (mean, across all concurrent requests) Transfer rate: 991.88 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 1 .4 1 4 Processing: 6 36 2.6 37 41 Waiting: 6 36 2.6 37 41 Total: 9 37 2.4 38 43 Percentage of the requests served within a certain time (ms) 50% 38 66% 38 75% 38 80% 38 90% 39 95% 39 98% 39 99% 39 100% 43 (longest request)
abの結果(プロキシサーバをかませた場合):
kazu634@kazu634% ab -n 5000 -c 100 http://srv634/wordpress ~ [1683] This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking srv634 (be patient) Completed 500 requests Completed 1000 requests Completed 1500 requests Completed 2000 requests Completed 2500 requests Completed 3000 requests Completed 3500 requests Completed 4000 requests Completed 4500 requests Completed 5000 requests Finished 5000 requests Server Software: nginx/.7.65 Server Hostname: srv634 Server Port: 80 Document Path: /wordpress Document Length: 185 bytes Concurrency Level: 100 Time taken for tests: 5.583 seconds Complete requests: 5000 Failed requests: Write errors: Non-2xx responses: 5000 Total transferred: 1920000 bytes HTML transferred: 925000 bytes Requests per second: 895.52 [#/sec] (mean) Time per request: 111.666 [ms] (mean) Time per request: 1.117 [ms] (mean, across all concurrent requests) Transfer rate: 335.82 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 1 .6 1 7 Processing: 18 110 7.5 111 126 Waiting: 18 110 7.5 111 126 Total: 24 111 7. 112 127 Percentage of the requests served within a certain time (ms) 50% 112 66% 112 75% 112 80% 112 90% 113 95% 113 98% 114 99% 114 100% 127 (longest request)
1秒あたりの処理数はプロキシサーバをかまさないほうが早いのだが。。。同じルーターにぶら下がっているから、ネットワークの影響殆ど無いから？