[Deploying Sakai] ajp_marshal_into_msgb failed

Matthew Buckett matthew.buckett at it.ox.ac.uk
Thu Nov 7 05:55:58 PST 2013


Could it be that someone is probing your server to see if it is a
misconfigured open proxy and supports HTTP CONNECT requests?

http://en.wikipedia.org/wiki/HTTP_tunnel


On 7 November 2013 08:18, Yasir Arfat <yasir.arfat at nu.edu.pk> wrote:
> Dear All,
>
> Apache 2.2
> Apache tomcat 5.5
> Sakai 2.8
>
> I am using apache as load balancer. I have seen following error in apache
> log many times.
>
>
>
> [Mon Nov 04 10:01:07 2013] [error] ajp_marshal_into_msgb - No such method
> CONNECT
> [Mon Nov 04 10:01:07 2013] [error] ajp_send_header: ajp_marshal_into_msgb
> failed
> [Mon Nov 04 10:01:07 2013] [error] (120010)APR does not understand this
> error code: proxy: AJP: request failed to 172.16.1.3:8009 (172.16.1.3)
> [Mon Nov 04 10:01:10 2013] [error] ajp_marshal_into_msgb - No such method
> CONNECT
> [Mon Nov 04 10:01:10 2013] [error] ajp_send_header: ajp_marshal_into_msgb
> failed
> [Mon Nov 04 10:01:10 2013] [error] (120010)APR does not understand this
> error code: proxy: AJP: request failed to 172.16.1.4:8009 (172.16.1.4)
>
> Thu Nov 07 01:03:34 2013] [error] (120006)APR does not understand this error
> code: proxy: read response failed from 172.16.1.2:8009 (172.16.1.2)
> [Thu Nov 07 02:18:26 2013] [error] ajp_marshal_into_msgb - No such method
> \x80w\x01\x03\x01
> [Thu Nov 07 02:18:26 2013] [error] ajp_send_header: ajp_marshal_into_msgb
> failed
> [Thu Nov 07 02:18:26 2013] [error] (120010)APR does not understand this
> error code: proxy: AJP: request failed to 172.16.1.2:8009 (172.16.1.2)
>
>
> I have searched on google and found following answer.
>
> "The answer is that the request headers have to fit into 8Kb or the request
> fails.
> Looking at the failing request the cookie information is more than 8Kb. "
>
> Does any one have found this problem in sakai load balancing.
>
>
>
>
>
> --
>
>
> Yasir Arfat | Software Engineer (sakai Administrator)
> http://slate.nu.edu.pk
> National University of Computer and Emerging Sciences
> A. K. Brohi Road (Near Police Line) H11/4 Islamabad
> Tel +92-(51)-111-128-128 Ext 344
>
>
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-- 
  Matthew Buckett, VLE Developer, IT Services, University of Oxford


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