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From "Rainer Jung" <tomcat-u...@kippdata.de>
Subject Re: ~ mod_jk Random Errors
Date Fri, 21 Oct 2005 16:00:10 GMT
Which version of mod_jk are you using?

What is errno 113 on your platform?

Each tcp connection from apache to tomcat blocks a thread inside tomcats
jk connector thread pool, that exclusively services requests coming over
that connection. So what are your MPM settings inside apache httpd.conf,
your workers.properties settings and your ajp 13 connectors settings in
server.xml?

Any firewalls or other network specialities between apache and tomcat?

> I have installed Apache 2.0.52 on a seperate machine along with mod_jk
> connector 1.2.14 to connect to another machine running Tomcat 5.5.9. I
> have
> had some success on getting mod_jk to work but during times of load mod_jk
> errors saying it does not have a connection to the tomcat server. After
> mod_jk retries 1-2 times the response comes back after 924 ms. I don't
> understand why mod_jk works most of the time, but seems to fail randomly
> for
> a fraction of the time. Here are the mod_jk errors:
>  [Thu Oct 20 17:25:59 2005] [18056:30400] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (
> 192.168.4.17:8009 <http://192.168.4.17:8009>), err=-113
> [Thu Oct 20 17:25:59 2005] [18056:30400] [error]
> ajp_get_reply::jk_ajp_common.c (1503): Tomcat is down or refused
> connection..
> No response has been sent to the client (yet)
> [Thu Oct 20 17:25:59 2005] [18056:30400] [info]
> ajp_service::jk_ajp_common.c
> (1721): Receiving from tomcat failed, recoverable operation attempt=0
> [Thu Oct 20 17:25:59 2005] [18056:30400] [info]
> ajp_service::jk_ajp_common.c
> (1749): Sending request to tomcat failed, recoverable operation attempt=1
>  Any help would be appreciated,
> ~Jack



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