Welcome! Log In Create A New Profile

Advanced

Re: Dead backend detection

Maxim Dounin
November 25, 2011 12:08PM
Hello!

On Fri, Nov 25, 2011 at 04:36:36PM +0200, Sergey Kobzar wrote:

> Что-то совсем запутался...
>
> Ушел ответ с бэкенда, все ОК 200:
>
> 207.241.237.226 - - [25/Nov/2011:14:28:11 +0000] "GET
> /Companies/t-d-advertising-marketing/0210001218642 HTTP/1.0" 200
> 62021 "-" "Mozilla/5.0 (compatible; archive.org_bot
> +http://www.archive.org/details/archive.org_bot)" "-"
>
> ловлю его фронтэндом:
> 207.241.237.226 - - [25/Nov/2011:14:28:11 +0000] "GET
> /Companies/t-d-advertising-marketing/0210001218642 HTTP/1.0" 502
> 9574 "-" "Mozilla/5.0 (compatible; archive.org_bot
> +http://www.archive.org/details/archive.org_bot)" "-" 10.17.92.2:80
> 502 0.055
>
> 502 ошибка. Последние 3 поля:
> - бэкенд
> - код ответа от бэкенда

Всмысле - $upstream_status? Там будет 502, если например бекенд
ответил некорректно.

Ну и ещё я бы рекомендовал лишний раз убедиться, что запрос
действительно правильно идентифицирован.

> - время ответа
>
> конфиг фронтенда:
>
> upstream backend {
> server 10.17.92.2 max_fails=3 fail_timeout=300s;
> # server 10.17.92.12 max_fails=3 fail_timeout=300s;
> # server 127.0.0.1 backup;
> ip_hash;
> }
>
> server {
> listen 80 default;
> server_name localhost;
>
> access_log /var/log/nginx/default_access.log main;
> error_log /var/log/nginx/default_error.log info;
>
> location / {
> proxy_pass http://backend;
> # proxy_next_upstream error timeout http_502 http_504;
>
> proxy_set_header Host $host;
> proxy_set_header X-Real-IP $remote_addr;
> proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
> }
>
> error_page 502 504 /errors/500.html;
>
> location ^~ /errors/ {
> root /home/www/localhost/htdocs;
> expires max;
> }
> }
>
> Что не так?

Обычно помогает заглянуть в error_log.

Maxim Dounin

_______________________________________________
nginx-ru mailing list
nginx-ru@nginx.org
http://mailman.nginx.org/mailman/listinfo/nginx-ru
Subject Author Posted

Dead backend detection

sergey.kobzar November 22, 2011 05:52PM

Re: Dead backend detection

Maxim Dounin November 23, 2011 02:56AM

Re: Dead backend detection

sergey.kobzar November 23, 2011 05:00AM

Re: Dead backend detection

Maxim Dounin November 23, 2011 07:54AM

Re: Dead backend detection

sergey.kobzar November 23, 2011 08:12AM

Re: Dead backend detection

sergey.kobzar November 25, 2011 09:38AM

Re: Dead backend detection

Maxim Dounin November 25, 2011 12:08PM

Re: Dead backend detection

sergey.kobzar November 25, 2011 12:58PM

Re: Dead backend detection

sergey.kobzar November 25, 2011 01:02PM

Re: Dead backend detection

sergey.kobzar November 25, 2011 01:08PM

Re: Dead backend detection

sergey.kobzar November 25, 2011 06:16PM



Sorry, only registered users may post in this forum.

Click here to login

Online Users

Guests: 225
Record Number of Users: 8 on April 13, 2023
Record Number of Guests: 421 on December 02, 2018
Powered by nginx      Powered by FreeBSD      PHP Powered      Powered by MariaDB      ipv6 ready