upstream prematurely closed connection

BaHbka bahbka at gmail.com
Tue Jul 29 08:47:39 MSD 2008


Лично у меня:

1. Файрвол есть на фронтэнде, но там о таймаутах ни слова.
2. А как DHCP может влиять на это?
3. Этого уж точно нет.
4. Хм... Интересная мысль. У меня фронтэнд имеет 2 интерфейса: во внутренней 
сети и во внешней, бэкенды только во внутренней, но они все в одном влане (то 
есть и внутренний интерфейс фронтэнда и внешний в одном влане), из-за чего лог 
засыпан ошибками типа

kernel: arp: 192.168.0.3 is on nfe1 but got reply from 00:12:34:56:78:90 on nfe0

Может быть из-за этого?

но такие ошибки идут уж очень часто и со всплесками prematurely closed вроде как 
не особо совпадают...

p.s. и снова подчеркну: обрываются одновременно со всеми бэкендами

Valery Kholodkov пишет:
> С моей теоретической колокольни этому могут быть следующие причины:
> 
> 1) Файерволы или наты между фронтэндом и бакэндом с таймаймаутами или 
> ещё какой-нибудь фигней;
> 2) DHCP;
> 3) Конфликты по IP-адресам в сети;
> 4) Проблемы с обновлением arp-кэшей.
> 
> Alexander Goncharov wrote:
>> Друзья, помогите разобраться, ошибки
>>
>> kevent() reported that connect() failed (54: Connection reset by peer)
>> while connecting to upstream
>> kevent() reported about an closed connection (54: Connection reset by
>> peer) while reading response header from upstream
>>
>> меня не покидают, переодически появляются в логах до 100 штук в одно и
>> то же время. Апач или nginx ни наодной машиние в это время не
>> перегружается.
>>
>>
>>
>> 2008/7/25 Alexander Goncharov <alexander.gsander at gmail.com>:
>>> Нет, не помогло, да и ошибка
>>>
>>> while reading response header from upstream
>>>
>>>
>>> 2008/7/24 Kostya Alexandrov <koticka at mail.ru>:
>>>> беклг в апаче увеличить не помогает?
>>>> |ListenBacklog value
>>>>
>>>>
>>>> |Alexander Goncharov wrote:
>>>>> абсолютно точно нет
>>>>>
>>>>> 2008/7/24 Alex Vorona <voron at amhost.net>:
>>>>>
>>>>>> 23.07.2008 19:10, Alexander Goncharov wrote:
>>>>>>
>>>>>>> Наблюдаю такую же проблему, до 100 ошибок (54: Connection reset by
>>>>>>> peer) в одно и то же время, в одну секунду, происходит периодически:
>>>>>>>
>>>>>>> OS: Freebsd 7.0-RELEASE, nginx-0.6.32+apache 1.3.41. Могу сказать
>>>>>>> точно, maxclients в апаче в это время не достигается.
>>>>>>>
>>>>>>>   upstream  warbackend  {
>>>>>>>       server   192.168.1.3:8080        weight=10;
>>>>>>>       server   192.168.1.2:8080        weight=3;
>>>>>>>   }
>>>>>>>
>>>>>>>       location ~ /tank.php$ {
>>>>>>>           proxy_pass http://warbackend;
>>>>>>>
>>>>>>>           proxy_next_upstream error timeout http_500 http_503;
>>>>>>>           proxy_connect_timeout 1;
>>>>>>>           proxy_redirect     off;
>>>>>>>           access_log   off;
>>>>>>>       }
>>>>>>>
>>>>>>>
>>>>>>> 2008/07/23 18:51:36 [error] 43641#0: *18348757 kevent() reported 
>>>>>>> about
>>>>>>> an closed connection (54: Connection reset by peer) while reading
>>>>>>> response header from upstream, client: 92.124.208.131, server:
>>>>>>> www.xxxx.ru,, request: "GET
>>>>>>>
>>>>>>>
>>>>>>> /tank.php?id=21897768&move=1&pl_id=210922&attack=1&my_monster=11&x=4&y=5&ax=5&ay=4&lastturn=5&lastmess=3&magicp=0&rand=0.409504341892898 
>>>>>>>
>>>>>>> HTTP/1.1", upstream:
>>>>>>>
>>>>>>>
>>>>>>> "http://192.168.1.3:8080/tank.php?id=21897768&move=1&pl_id=210922&attack=1&my_monster=11&x=4&y=5&ax=5&ay=4&lastturn=5&lastmess=3&magicp=0&rand=0.409504341892898", 
>>>>>>>
>>>>>>> host: "www.xxxx.ru", referrer: 
>>>>>>> "http://www.xxxx.ru/php/do.php?ver=328"
>>>>>>> 2008/07/23 18:51:36 [error] 43641#0: *18348762 kevent() reported 
>>>>>>> about
>>>>>>> an closed connection (54: Connection reset by peer) while reading
>>>>>>> response header from upstream, client: 77.94.34.166, server:
>>>>>>> www.xxxx.ru,, request: "GET
>>>>>>> /tank.php?id=21897556&lastturn=23&lastmess=1&rand=0.514963776804507
>>>>>>> HTTP/1.1", upstream:
>>>>>>>
>>>>>>>
>>>>>>> "http://192.168.1.3:8080/tank.php?id=21897556&lastturn=23&lastmess=1&rand=0.514963776804507", 
>>>>>>>
>>>>>>> host: "www.xxxx.ru", referrer: 
>>>>>>> "http://www.xxxx.ru/php/do.php?ver=328"
>>>>>>> 2008/07/23 18:51:36 [error] 43641#0: *18348763 kevent() reported 
>>>>>>> about
>>>>>>> an closed connection (54: Connection reset by peer) while reading
>>>>>>> response header from upstream, client: 79.173.80.253, server:
>>>>>>> www.xxxx.ru,, request: "GET
>>>>>>> /tank.php?id=21898043&lastturn=-2&lastmess=0&rand=0.626321988645941
>>>>>>> HTTP/1.1", upstream:
>>>>>>>
>>>>>>>
>>>>>>> "http://192.168.1.3:8080/tank.php?id=21898043&lastturn=-2&lastmess=0&rand=0.626321988645941", 
>>>>>>>
>>>>>>> host: "www.xxxx.ru", referrer: 
>>>>>>> "http://www.xxxx.ru/php/do.php?ver=328"
>>>>>>> 2008/07/23 18:51:36 [error] 43641#0: *18348768 kevent() reported 
>>>>>>> about
>>>>>>> an closed connection (54: Connection reset by peer) while reading
>>>>>>> response header from upstream, client: 81.13.114.14, server:
>>>>>>> www.xxxx.ru,, request: "GET
>>>>>>> /tank.php?id=21895083&lastturn=72&lastmess=69&rand=0.65912398416549
>>>>>>> HTTP/1.1", upstream:
>>>>>>>
>>>>>>>
>>>>>>> "http://192.168.1.3:8080/tank.php?id=21895083&lastturn=72&lastmess=69&rand=0.65912398416549", 
>>>>>>>
>>>>>>> host: "www.xxxx.ru", referrer: 
>>>>>>> "http://www.xxxx.ru/php/do.php?ver=328"
>>>>>>> 2008/07/23 18:51:36 [error] 43641#0: *18348770 kevent() reported 
>>>>>>> about
>>>>>>> an closed connection (54: Connection reset by peer) while reading
>>>>>>> response header from upstream, client: 195.72.250.118, server:
>>>>>>> www.xxxx.ru,, request: "GET
>>>>>>> /tank.php?id=10968458&lastturn=292&lastmess=402&rand=0.929750513285398 
>>>>>>>
>>>>>>> HTTP/1.1", upstream:
>>>>>>>
>>>>>>>
>>>>>>> "http://192.168.1.3:8080/tank.php?id=10968458&lastturn=292&lastmess=402&rand=0.929750513285398", 
>>>>>>>
>>>>>>> host: "www.xxxx.ru", referrer: 
>>>>>>> "http://www.xxxx.ru/php/do.php?ver=328"
>>>>>>> 2008/07/23 18:51:36 [error] 43641#0: *18348772 kevent() reported 
>>>>>>> about
>>>>>>> an closed connection (54: Connection reset by peer) while reading
>>>>>>> response header from upstream, client: 81.195.40.2, server:
>>>>>>> www.xxxx.ru,, request: "GET
>>>>>>> /tank.php?id=21896633&lastturn=47&lastmess=33&rand=0.788190171588212
>>>>>>> HTTP/1.0", upstream:
>>>>>>>
>>>>>>>
>>>>>>> "http://192.168.1.3:8080/tank.php?id=21896633&lastturn=47&lastmess=33&rand=0.788190171588212", 
>>>>>>>
>>>>>>> host: "www.xxxx.ru", referrer: 
>>>>>>> "http://www.xxxx.ru/php/do.php?ver=328"
>>>>>>> 2008/07/23 18:51:36 [error] 43641#0: *18348774 kevent() reported 
>>>>>>> about
>>>>>>> an closed connection (54: Connection reset by peer) while reading
>>>>>>> response header from upstream, client: 88.205.157.171, server:
>>>>>>> www.xxxx.ru,, request: "GET
>>>>>>> /tank.php?id=21897704&lastturn=20&lastmess=1&rand=0.377463918179274
>>>>>>> HTTP/1.1", upstream:
>>>>>>>
>>>>>>>
>>>>>>> "http://192.168.1.3:8080/tank.php?id=21897704&lastturn=20&lastmess=1&rand=0.377463918179274", 
>>>>>>>
>>>>>>> host: "www.xxxx.ru", referrer: 
>>>>>>> "http://www.xxxx.ru/php/do.php?ver=328"
>>>>>>> 2008/07/23 18:51:36 [error] 43641#0: *18348779 kevent() reported 
>>>>>>> about
>>>>>>> an closed connection (54: Connection reset by peer) while reading
>>>>>>> response header from upstream, client: 213.227.227.101, server:
>>>>>>> www.xxxx.ru,, request: "GET
>>>>>>>
>>>>>>>
>>>>>>> /tank.php?id=21896107&move=1&pl_id=259362&magical=magicarrow&my_monster=3&x=0&y=8&ax=1&ay=1&lastturn=75&lastmess=57&magicp=undefined&rand=0.128536344971508 
>>>>>>>
>>>>>>> HTTP/1.1", upstream:
>>>>>>>
>>>>>>>
>>>>>>> "http://192.168.1.3:8080/tank.php?id=21896107&move=1&pl_id=259362&magical=magicarrow&my_monster=3&x=0&y=8&ax=1&ay=1&lastturn=75&lastmess=57&magicp=undefined&rand=0.128536344971508", 
>>>>>>>
>>>>>>> host: "www.xxxx.ru", referrer: 
>>>>>>> "http://www.xxxx.ru/php/do.php?ver=328"
>>>>>>> 2008/07/23 18:51:36 [error] 43641#0: *18348783 kevent() reported 
>>>>>>> about
>>>>>>> an closed connection (54: Connection reset by peer) while reading
>>>>>>> response header from upstream, client: 195.24.138.253, server:
>>>>>>> www.xxxx.ru,, request: "GET
>>>>>>> /tank.php?id=21897559&lastturn=19&lastmess=3&rand=0.409460594411939
>>>>>>> HTTP/1.0", upstream:
>>>>>>>
>>>>>>>
>>>>>>> "http://192.168.1.3:8080/tank.php?id=21897559&lastturn=19&lastmess=3&rand=0.409460594411939", 
>>>>>>>
>>>>>>> host: "www.xxxx.ru", referrer: 
>>>>>>> "http://www.xxxx.ru/php/do.php?ver=328"
>>>>>>> 2008/07/23 18:51:36 [error] 43641#0: *18348784 kevent() reported 
>>>>>>> about
>>>>>>> an closed connection (54: Connection reset by peer) while reading
>>>>>>> response header from upstream, client: 213.171.60.64, server:
>>>>>>> www.xxxx.ru,, request: "GET
>>>>>>> /tank2.php?id=2365363&lchatid=0&pl_id=125186&rand=0.614568601828068
>>>>>>> HTTP/1.1", upstream:
>>>>>>>
>>>>>>>
>>>>>>> "http://192.168.1.3:8080/tank2.php?id=2365363&lchatid=0&pl_id=125186&rand=0.614568601828068", 
>>>>>>>
>>>>>>> host: "www.xxxx.ru", referrer: 
>>>>>>> "http://www.xxxx.ru/php/do2.php?ver=24"
>>>>>>> 2008/07/23 18:51:36 [error] 43641#0: *18348785 kevent() reported 
>>>>>>> about
>>>>>>> an closed connection (54: Connection reset by peer) while reading
>>>>>>> response header from upstream, client: 80.240.215.124, server:
>>>>>>> www.xxxx.ru,, request: "GET
>>>>>>>
>>>>>>>
>>>>>>> http://www.xxxx.ru/tank.php?id=21897154&move=1&pl_id=42873&attack=1&my_monster=1&x=9&y=6&ax=8&ay=5&lastturn=22&lastmess=0&magicp=0&rand=0.186876151710749 
>>>>>>>
>>>>>>> HTTP/1.1", upstream:
>>>>>>>
>>>>>>>
>>>>>>> "http://192.168.1.3:8080/tank.php?id=21897154&move=1&pl_id=42873&attack=1&my_monster=1&x=9&y=6&ax=8&ay=5&lastturn=22&lastmess=0&magicp=0&rand=0.186876151710749", 
>>>>>>>
>>>>>>> host: "www.xxxx.ru", referrer: 
>>>>>>> "http://www.xxxx.ru/php/do.php?ver=328"
>>>>>>> 2008/07/23 18:51:36 [error] 43641#0: *18348787 kevent() reported 
>>>>>>> about
>>>>>>> an closed connection (54: Connection reset by peer) while reading
>>>>>>> response header from upstream, client: 89.223.127.254, server:
>>>>>>> www.xxxx.ru,, request: "GET
>>>>>>> /tank.php?id=21898101&lastturn=1&lastmess=0&rand=0.270849634893239
>>>>>>> HTTP/1.0", upstream:
>>>>>>>
>>>>>>>
>>>>>>> "http://192.168.1.3:8080/tank.php?id=21898101&lastturn=1&lastmess=0&rand=0.270849634893239", 
>>>>>>>
>>>>>>> host: "www.xxxx.ru", referrer: 
>>>>>>> "http://www.xxxx.ru/php/do.php?ver=328"
>>>>>>> 2008/07/23 18:51:36 [error] 43641#0: *18348788 kevent() reported 
>>>>>>> about
>>>>>>> an closed connection (54: Connection reset by peer) while reading
>>>>>>> response header from upstream, client: 79.176.126.171, server:
>>>>>>> www.xxxx.ru,, request: "GET
>>>>>>>
>>>>>>>
>>>>>>> http://www.xxxx.ru/tank.php?id=21897652&lastturn=4&lastmess=13&rand=0.382012006826699 
>>>>>>>
>>>>>>> HTTP/1.1", upstream:
>>>>>>>
>>>>>>>
>>>>>>> "http://192.168.1.3:8080/tank.php?id=21897652&lastturn=4&lastmess=13&rand=0.382012006826699", 
>>>>>>>
>>>>>>> host: "www.xxxx.ru", referrer: 
>>>>>>> "http://www.xxxx.ru/php/do.php?ver=328"
>>>>>>>
>>>>>>> В том же стиле (много и одновременно, а до и после все без ошибок)
>>>>>>> сообщения вида (60: Operation timed out).
>>>>>>>
>>>>>>> Очень бы хотелось разобраться.
>>>>>>>
>>>>>> апач в это время не рестартится/релоадится чем-нибудь вроде 
>>>>>> логротейта?
>>>>>>
>>>>>>
>>>>>>
>>>>
>>>>
> 
> 





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