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From Fady Haikal <fadyhai...@gmail.com>
Subject Re: [users@httpd] Session disconnection
Date Tue, 14 Feb 2017 15:55:34 GMT
Luca,
Apache/2.4.18 (Win64)

10.114.119.* are the clients machines, 10.114.43.102 and 10.114.43.103
are the app servers

yes i can see 502 in the httpd access log but all are related to a
specific ajax we are using in our application, in other words it's not
related to the disconnection issues we are facing

from application server i cannot see any error, but from the client
machine the session expired

On Tue, Feb 14, 2017 at 5:44 PM, Luca Toscano <toscano.luca@gmail.com> wrote:
> Hi!
>
> 2017-02-14 16:08 GMT+01:00 Fady Haikal <fadyhaikal@gmail.com>:
>>
>> Dear Team,
>> I need your urgent help for an issue i'm facing with Apache Web
>> Server, from time to time we are facing a disconnection on the
>> application and after checking the logs from Apache we can see the
>> below error: please advise urgently as we are working on a PROD server
>>
>> Our architecture: 2 Apache Web Servers (192.168.0.11 and 192.168.0.10)
>> with MS network load balacing between them with a VIrtual IP
>> 192.168.0.12 (DNS imal.albaraka.com.sd) and all users are connecting
>> to the application from this DNS imal.albaraka.com.sd
>>
>> [Tue Feb 14 17:45:27.071171 2017] [proxy_http:error] [pid 1276:tid
>> 2080] (OS 10054)An existing connection was forcibly closed by the
>> remote host.  : [client 10.114.117.51:51838] AH01102: error reading
>> status line from remote server 10.114.43.103:8080, referer:
>>
>> http://imal.albaraka.com.sd/imal_core_portal/pathdesktop/DesktopAction_!corePortal.action
>> [Tue Feb 14 17:45:51.673830 2017] [proxy_http:error] [pid 1276:tid
>> 1496] (OS 10054)An existing connection was forcibly closed by the
>> remote host.  : [client 10.114.119.57:52151] AH01102: error reading
>> status line from remote server 10.114.43.103:8080, referer:
>>
>> http://imal.albaraka.com.sd/imal_core_portal/pathdesktop/DesktopAction_!corePortal.action
>> [Tue Feb 14 17:47:53.339839 2017] [proxy_http:error] [pid 1276:tid
>> 1204] (OS 10054)An existing connection was forcibly closed by the
>> remote host.  : [client 10.114.33.42:52740] AH01102: error reading
>> status line from remote server 10.114.43.103:8080, referer:
>>
>> http://imal.albaraka.com.sd/imal_core_portal/pathdesktop/DesktopAction_!corePortal.action
>>
>
> Can you tell us what version of httpd you are using?
>
> From a quick glance it seems to me that httpd receives garbage from a remote
> server (and not a valid HTTP response).
>
> Some questions:
> - Can you give us more info about what are the IPs 10.114.119.* ? App
> servers?
> - Do you see a 502 (Bad gateway) in the httpd access log?
> - Have you checked for errors in the remote host?
>
> Hope that helps!
>
> Luca

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