upstream prematurely closed connection

Alexander Goncharov alexander.gsander at gmail.com
Wed Jul 23 20:10:26 MSD 2008 

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.

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