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<html><head><title>Re: оЕПХНДХВЕЯЙХЕ ОНДБХЯЮМХЪ ОПХ ГЮЦПСГЙЕ ЯРЮРХЙХ Б nginx</title>
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<p>Hello Алексей,</p>
<p><br></p>
<p>в listen попробуйте поставить rcvbuf=8k sendbuf=8k.</p>
<p><br></p>
<p>Monday, February 16, 2009, 11:16:08 PM, you wrote:</p>
<p><br></p>
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<p><span class=rvts6>></span></p>
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<p><span class=rvts7>Приветствую всех, возник следующий вопрос</span></p>
<p><span class=rvts7>В городской сети поднят торрент-трекер, 20000 пользователей, примерно 5000 уников в сутки, и 4000 одновременно подключенных торрент клиентов.</span></p>
<p><span class=rvts7>Все это реализовано на nginx + fast-cgi, fcgi и nginx прикручены через unix socket, движек трекера - torrentpier. Конфигурация железки: 2*XeonE5410 / 8Gb / RAID0+1</span></p>
<p><span class=rvts7>В пик нагрузки начал наблюдать такие проблемы, странички через раз то открываются с отличной скорость, то зависает на загрузке от 10 до 200 секунд, причем после загрузки показывается что пхп генерится как и обычно за 0,056сек. </span></p>
<p><span class=rvts7>Попробовал испытать через ab просто статичную картинку, эффект тотже, просто наглухо виснет тест и все. В это время в нетстате клиента видно что соединения висят в SYN_SENT.</span></p>
<p><br></p>
<p><span class=rvts7>Перепробовал уже большинство возможных вариантов найденных в инете, ничего не дает улучшения в производительности.</span></p>
<p><span class=rvts7>Может кто сталкивался с подобной проблемой, подскажите решение.</span></p>
<p><br></p>
<p><span class=rvts7>nginx version: nginx/0.7.34</span></p>
<p><br></p>
<p><span class=rvts7>Вот примерный конфиг этого чуда:</span></p>
<p><span class=rvts7>user nginx nginx;</span></p>
<p><span class=rvts7>worker_processes 50;</span></p>
<p><span class=rvts7>worker_rlimit_nofile 20192;</span></p>
<p><br></p>
<p><span class=rvts7>error_log /var/log/nginx/error_log info;</span></p>
<p><br></p>
<p><span class=rvts7>events {</span></p>
<p><span class=rvts7> worker_connections 50192;</span></p>
<p><span class=rvts7> use epoll;</span></p>
<p><span class=rvts7>}</span></p>
<p><br></p>
<p><span class=rvts7>http {</span></p>
<p><span class=rvts7> include /etc/nginx/mime.types;</span></p>
<p><span class=rvts7> default_type application/octet-stream;</span></p>
<p><span class=rvts7> client_max_body_size 1000m;</span></p>
<p><span class=rvts7> server_names_hash_bucket_size 64;</span></p>
<p><br></p>
<p><span class=rvts7> log_format main</span></p>
<p><span class=rvts7> '$remote_addr - $remote_user [$time_local] '</span></p>
<p><span class=rvts7> '"$request" $status $bytes_sent '</span></p>
<p><span class=rvts7> '"$http_referer" "$http_user_agent" '</span></p>
<p><span class=rvts7> '"$gzip_ratio"';</span></p>
<p><span class=rvts7> </span></p>
<p><span class=rvts7> client_header_timeout 3m;</span></p>
<p><span class=rvts7> client_body_timeout 3m;</span></p>
<p><span class=rvts7> send_timeout 3m;</span></p>
<p><br></p>
<p><span class=rvts7> connection_pool_size 2024;</span></p>
<p><span class=rvts7> client_header_buffer_size 1k;</span></p>
<p><span class=rvts7> large_client_header_buffers 4 2k;</span></p>
<p><span class=rvts7> request_pool_size 4k;</span></p>
<p><br></p>
<p><span class=rvts7> gzip off;</span></p>
<p><span class=rvts7># gzip_min_length 1100;</span></p>
<p><span class=rvts7># gzip_buffers 4 8k;</span></p>
<p><span class=rvts7># gzip_types text/plain;</span></p>
<p><br></p>
<p><span class=rvts7> output_buffers 1 32k;</span></p>
<p><span class=rvts7> postpone_output 1460;</span></p>
<p><br></p>
<p><span class=rvts7> sendfile on;</span></p>
<p><span class=rvts7> tcp_nopush on;</span></p>
<p><span class=rvts7> tcp_nodelay on;</span></p>
<p><br></p>
<p><span class=rvts7> keepalive_timeout 0;</span></p>
<p><span class=rvts7> lingering_time 30;</span></p>
<p><span class=rvts7> lingering_timeout 2;</span></p>
<p><span class=rvts7> reset_timedout_connection on;</span></p>
<p><br></p>
<p><span class=rvts7># ignore_invalid_headers on;</span></p>
<p><br></p>
<p><span class=rvts7> index index.html;</span></p>
<p><br></p>
<p><span class=rvts7> server {</span></p>
<p><span class=rvts7> listen 80;</span></p>
<p><br></p>
<p><span class=rvts7> access_log off;</span></p>
<p><span class=rvts7># access_log /var/log/nginx/access_tr.log;</span></p>
<p><span class=rvts7> error_log /var/log/nginx/error_tr.log;</span></p>
<p><span class=rvts7> server_name_in_redirect off;</span></p>
<p><span class=rvts7> server_name </span><a class=rvts8 href="http://tltorrent.ru">tltorrent.ru</a><span class=rvts7> </span><a class=rvts8 href="http://www.tltorrent.ru">www.tltorrent.ru</a><span class=rvts7> </span><a class=rvts8 href="http://tltorrent.net.ru">tltorrent.net.ru</a><span class=rvts7> </span><a class=rvts8 href="http://www.tltorrent.net.ru">www.tltorrent.net.ru</a><span class=rvts7> </span><a class=rvts8 href="http://tr.xtlt.ru">tr.xtlt.ru</a><span class=rvts7> </span><a class=rvts8 href="http://test.tr">test.tr</a><span class=rvts7>;</span></p>
<p><br></p>
<p><span class=rvts7> error_page 502 /errors/502.html;</span></p>
<p><span class=rvts7> error_page 403 /errors/403.html; </span></p>
<p><span class=rvts7> </span></p>
<p><span class=rvts7> location = /nginx_status {</span></p>
<p><span class=rvts7> stub_status on;</span></p>
<p><span class=rvts7> access_log off;</span></p>
<p><span class=rvts7> allow all;</span></p>
<p><span class=rvts7> } </span></p>
<p><span class=rvts7> </span></p>
<p><span class=rvts7> location / {</span></p>
<p><span class=rvts7> root /var/www/tltorrent;</span></p>
<p><span class=rvts7> index index.html index.htm index.php;</span></p>
<p><span class=rvts7> }</span></p>
<p><br></p>
<p><span class=rvts7> location ~ .php$ {</span></p>
<p><span class=rvts7># fastcgi_pass </span><a class=rvts8 href="http://127.0.0.1:1026">127.0.0.1:1026</a><span class=rvts7>;</span></p>
<p><span class=rvts7> fastcgi_pass unix:/tmp/fcgi.sock;</span></p>
<p><br></p>
<p><span class=rvts7> fastcgi_index index.php;</span></p>
<p><br></p>
<p><span class=rvts7> fastcgi_connect_timeout 60;</span></p>
<p><span class=rvts7> fastcgi_read_timeout 60;</span></p>
<p><span class=rvts7> fastcgi_send_timeout 60;</span></p>
<p><br></p>
<p><span class=rvts7> fastcgi_param SCRIPT_FILENAME /var/www/tltorrent$fastcgi_script_name;</span></p>
<p><span class=rvts7> fastcgi_param QUERY_STRING $query_string;</span></p>
<p><span class=rvts7> fastcgi_param REQUEST_METHOD $request_method;</span></p>
<p><span class=rvts7> fastcgi_param CONTENT_TYPE $content_type;</span></p>
<p><span class=rvts7> fastcgi_param CONTENT_LENGTH $content_length;</span></p>
<p><br></p>
<p><span class=rvts7> fastcgi_param SCRIPT_NAME $fastcgi_script_name;</span></p>
<p><span class=rvts7> fastcgi_param REQUEST_URI $request_uri;</span></p>
<p><span class=rvts7> fastcgi_param DOCUMENT_URI $document_uri;</span></p>
<p><span class=rvts7> fastcgi_param DOCUMENT_ROOT $document_root;</span></p>
<p><span class=rvts7> fastcgi_param SERVER_PROTOCOL $server_protocol;</span></p>
<p><br></p>
<p><span class=rvts7> fastcgi_param GATEWAY_INTERFACE CGI/1.1;</span></p>
<p><span class=rvts7> fastcgi_param SERVER_SOFTWARE nginx;</span></p>
<p><br></p>
<p><span class=rvts7> fastcgi_param REMOTE_ADDR $remote_addr;</span></p>
<p><span class=rvts7> fastcgi_param REMOTE_PORT $remote_port;</span></p>
<p><span class=rvts7> fastcgi_param SERVER_ADDR $server_addr;</span></p>
<p><span class=rvts7> fastcgi_param SERVER_PORT $server_port;</span></p>
<p><span class=rvts7> fastcgi_param SERVER_NAME $server_name;</span></p>
<p><span class=rvts7> #$http_x_forwarded_host;</span></p>
<p><span class=rvts7> fastcgi_param HTTP_HOST $http_host;</span></p>
<p><span class=rvts7> #$http_x_forwarded_host;</span></p>
<p><br></p>
<p><span class=rvts7> }</span></p>
<p><span class=rvts7> location /forum/ub/ {</span></p>
<p><span class=rvts7> rewrite ^/forum/ub/(.*).png$ /forum/ub/ub.php?u=$1;</span></p>
<p><span class=rvts7> }</span></p>
<p><span class=rvts7> </span></p>
<p><br></p>
<p><span class=rvts7> }</span></p>
<p><br></p>
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<p><br></p>
<p><br></p>
<p><br></p>
<p><br></p>
<p>Arkadiy Kulev <a class=rvts9 href="mailto:eth@ethaniel.com">mailto:eth@ethaniel.com</a></p>
<p>+7 495 5070602</p>
<p>Moscow, Russia</p>
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