post_action crash

Kruglov Eugenie ekruglov на gmail.com
Чт Янв 14 09:09:03 MSK 2010


А попробуйте задать его так:
location  @analytics_docview {
   ...
}

2010/1/14 Alexey Kovyrin <alexey at kovyrin.net>

> Доброго всем времени суток,
>
> Вот, больше года спустя, копаясь в конфигах удивился, почему экшн не
> internal.... сменил и БАЦ - 5 минут даунтайма :-) Когда заглянул в
> кору, сразу вспомнил баг. Вот только чего-то мне думалось, что с
> 0.6.34 до 0.7.64 его починили. Игорь, личная просьба, глянь на него
> плиз :-)
>
> 2008/12/11 Alexey Kovyrin <alexey at kovyrin.net>:
> > Решил тут заюзать post_action, чтобы после отдачи страницы документа
> > юзеру дергать наш сервер аналитики (раньше дергал с бекенда, но щас
> > приделали squid перед ним - не выходит, так как 90% запросов отдаются
> > из кеша).
> >
> > Сделал вот так:
> >
> >    location = @analytics_docview {
> >        internal;
> >
> >        proxy_set_header  X-Analytics-page_type 'document';
> >        proxy_set_header  X-Analytics-docview_uri $docview_uri;
> >        proxy_set_header  X-Analytics-referer $http_referer;
> >        proxy_set_header  X-Analytics-user_agent $http_user_agent;
> >        proxy_set_header  X-Analytics-user_ip $remote_addr;
> >
> >        proxy_connect_timeout 5;
> >        proxy_read_timeout 5;
> >        proxy_send_timeout 5;
> >
> >        access_log logs/analytics-api.log main;
> >        error_log logs/analytics-api.error.log debug;
> >
> >        proxy_pass http://XXXXXXX:4000/collector/register_hit;
> >    }
> >
> >    # Distribute queries among different mongrel packs
> >    # DOCVIEW page - with caching
> >    location /doc/ {
> >        access_log logs/scribd.analytics.log analytics;
> >        add_header X-Served-By backend;
> >
> >        set $docview_uri $uri;
> >        post_action @analytics_docview;
> >        ..........................................
> >        ... много всего, в основном
> >        ... proxy_pass'ы всякие
> >        ..........................................
> >    }
> >
> >
> >
> > Результат оказался странным:
> >
> > 1) В еррор логе:
> >
> > 2008/12/11 02:20:38 [error] 7402#0: *36 could not find named location
> > "@analytics_docview" while sending to client, client: 66.249.90.136, s
> > erver: *.scribd.com, request: "GET
> > /doc/10536/PAN-F49A?query2=WWW.tininfo%40nsdl.co.in HTTP/1.0",
> > upstream: "http://10.10.170.18:8080/doc/10
> > 536/PAN-F49A?query2=WWW.tininfo%40nsdl.co.in", host: "www.scribd.com"
> >
> > 2) проверял на трафике в 50+ QPS и за 10-15 секунд получил десяток
> > core-файлов :-/
> >
> > Core was generated by `nginx: worker process       '.
> > Program terminated with signal 11, Segmentation fault.
> > #0  0x0000000000409e3c in ngx_vsnprintf (buf=0x7fff5291f12c "?*",
> > max=<value optimized out>, fmt=<value optimized out>,
> >    args=0x7fff5291f030) at src/core/ngx_string.c:426
> > 426                         *--p = (u_char) (ui32 % 10 + '0');
> > (gdb) bt
> > #0  0x0000000000409e3c in ngx_vsnprintf (buf=0x7fff5291f12c "?*",
> > max=<value optimized out>, fmt=<value optimized out>,
> >    args=0x7fff5291f030) at src/core/ngx_string.c:426
> > #1  0x000000000040a219 in ngx_snprintf (buf=0x7fff5291f12c "?*",
> > max=140734578683891, fmt=0x2ff <Address 0x2ff out of bounds>)
> >    at src/core/ngx_string.c:100
> > #2  0x0000000000406353 in ngx_log_error_core (level=4, log=0x7d2f00,
> > err=0, fmt=0x45e090 "could not find named location \"%V\"")
> >    at src/core/ngx_log.c:98
> > #3  0x000000000042901b in ngx_http_named_location (r=0x700640,
> > name=0x671d40) at src/http/ngx_http_core_module.c:1934
> > #4  0x000000000042b560 in ngx_http_post_action (r=0x700640) at
> > src/http/ngx_http_request.c:2560
> > #5  0x000000000042cd35 in ngx_http_finalize_request (r=0x700640,
> > rc=500) at src/http/ngx_http_request.c:1706
> > #6  0x0000000000429028 in ngx_http_named_location (r=0x700640,
> > name=0x671d40) at src/http/ngx_http_core_module.c:1937
> > #7  0x000000000042b560 in ngx_http_post_action (r=0x700640) at
> > src/http/ngx_http_request.c:2560
> > #8  0x000000000042cd35 in ngx_http_finalize_request (r=0x700640,
> > rc=500) at src/http/ngx_http_request.c:1706
> > #9  0x0000000000429028 in ngx_http_named_location (r=0x700640,
> > name=0x671d40) at src/http/ngx_http_core_module.c:1937
> > #10 0x000000000042b560 in ngx_http_post_action (r=0x700640) at
> > src/http/ngx_http_request.c:2560
> > #11 0x000000000042cd35 in ngx_http_finalize_request (r=0x700640,
> > rc=500) at src/http/ngx_http_request.c:1706
> > #12 0x0000000000429028 in ngx_http_named_location (r=0x700640,
> > name=0x671d40) at src/http/ngx_http_core_module.c:1937
> > #13 0x000000000042b560 in ngx_http_post_action (r=0x700640) at
> > src/http/ngx_http_request.c:2560
> > #14 0x000000000042cd35 in ngx_http_finalize_request (r=0x700640,
> > rc=500) at src/http/ngx_http_request.c:1706
> > #15 0x0000000000429028 in ngx_http_named_location (r=0x700640,
> > name=0x671d40) at src/http/ngx_http_core_module.c:1937
> > #16 0x000000000042b560 in ngx_http_post_action (r=0x700640) at
> > src/http/ngx_http_request.c:2560
> > #17 0x000000000042cd35 in ngx_http_finalize_request (r=0x700640,
> > rc=500) at src/http/ngx_http_request.c:1706
> > #18 0x0000000000429028 in ngx_http_named_location (r=0x700640,
> > name=0x671d40) at src/http/ngx_http_core_module.c:1937
> > #19 0x000000000042b560 in ngx_http_post_action (r=0x700640) at
> > src/http/ngx_http_request.c:2560
> > .............
> > ............тут очень много одинаковых блоков вызовов (злобная такая
> рекурсия)
> > ............
> > #39500 0x000000000042cd35 in ngx_http_finalize_request (r=0x700640,
> > rc=500) at src/http/ngx_http_request.c:1706
> > #39501 0x0000000000429028 in ngx_http_named_location (r=0x700640,
> > name=0x671d40) at src/http/ngx_http_core_module.c:1937
> > #39502 0x000000000042b560 in ngx_http_post_action (r=0x700640) at
> > src/http/ngx_http_request.c:2560
> > #39503 0x000000000042cd35 in ngx_http_finalize_request (r=0x700640,
> > rc=500) at src/http/ngx_http_request.c:1706
> > ---Type <return> to continue, or q <return> to quit---
> >
> > Дальше мне надоело жать ентер :-)
> >
> > Внимание, вопрос: что делать? :-(
> >
> > --
> > Alexey Kovyrin
> > http://kovyrin.info/
> >
>
>
>
> --
> Alexey Kovyrin
> http://kovyrin.net/
> _______________________________________________
> nginx-ru mailing list
> nginx-ru at nginx.org
> http://nginx.org/mailman/listinfo/nginx-ru
>



-- 
Faithfully yours, Eugenie
ICQ #701217
GTalk ekruglov at gmail.com
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