Nginx сбрасывает соединения

Question

Nginx сбрасывает соединения

У меня есть установка, где я использую linode nodebalancer (loadbalancer) для моих серверов nginx/php5-fpm. Это балансировщик пассивных проверок. Эти пассивные проверки проверяют код состояния запросов. Если существует слишком много кодов состояния 5XX, то узел (vps) помечается как балансировщик нагрузки в автономном режиме.

Nodebalancer случайным образом переводит мои серверы в автономный режим. Обратившись в службу поддержки линоде, они пришли к выводу, что нет 500 ошибок, но соединения разрываются (или время ожидания).

Я не могу найти ничего в моих журналах nginx. Есть ли способ отладить эту проблему и посмотреть, какие соединения были прерваны по тайм-аут nginx?

РЕДАКТИРОВАТЬ Я вижу много 408 запросов от одного и того же IP/ агента пользователя. Они приходят навалом.. Это подозрительно? Как бы вы справились с этой ситуацией? Снимок из access.log

69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:29 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:30 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:31 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:31 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:31 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
69.30.*.* - - [22/Apr/2014:19:28:31 +0200] "POST /error/register-image-error/ HTTP/1.1" 408 0 "http://www.mysite.com/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"

Спасибо!

1

nginx load-balancing php-fpm linode load-balance

Источник

W. Loockx 22 апр '14 в 14:49

1 ответ

Другие вопросы по тегам nginx load-balancing php-fpm linode load-balance

boris quiroz 22 апр '14 в 15:19 2014-04-22 15:19 · Answer 1 · 2014-04-22 15:19

Было бы неплохо узнать, какой HTTP-код вы получаете. Я подозреваю, что это должно быть 408 (время ожидания запроса), поэтому nodebalancer решит, что сервер отключен, и пометит его как отключенный

Что вы должны попробовать:

Увеличьте время ожидания
Используйте режим TCP вместо режима HTTP

Предупреждение: в режиме TCP обработка куки-файлов отключена.