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From Rainer Jung <rainer.j...@kippdata.de>
Subject Re: 503 error - service not available
Date Thu, 04 Aug 2011 17:38:43 GMT
On 04.08.2011 04:28, Dave Filchak wrote:
> 
> Not sure what happened here. The app was working just fine until today.
> I am getting a 503 Service temporarily unavailable error when trying to
> connect to a tomcat site using Apache as the front end and mod_jk
> connectors. I have verified that tomcat is running on the correct ports
> using:netstat -atp | grep java. I see no errors in the message logs ( we
> are on CentOS by the way ) but I do see:
> 
> |[Wed Aug 03 18:49:24 2011] [15605:1199618400] [info]
> ajp_service::jk_ajp_common.c (2540): (exodus) sending request to tomcat
> failed (recoverable), because of error during request sending (attempt=2)
> [Wed Aug 03 18:49:24 2011] [15605:1199618400] [error]
> ajp_service::jk_ajp_common.c (2559): (exodus) connecting to tomcat failed.
> [Wed Aug 03 18:49:24 2011] exodus www.exodusdecoded.com 0.198512
> [Wed Aug 03 18:49:24 2011] [15605:1199618400] [info]
> jk_handler::mod_jk.c (2618): Service error=-3 for worker=exodus
> [Wed Aug 03 18:50:46 2011] [15851:1189128544] [info]
> jk_open_socket::jk_connect.c (622): connect to 174.122.30.18:8010 failed
> (errno=111)
> [Wed Aug 03 18:50:46 2011] [15851:1189128544] [info]
> ajp_connect_to_endpoint::jk_ajp_common.c (959): Failed opening socket to
> (174.122.30.18:8010) (errno=111)

Error 111 is "Connection refused by host". So something between youweb
server and the Tomcat server (both ends included) doesn't allow to
connect to 174.122.30.18 port 8010. You should be able to reproduce with
telnet as others suggested and then diagnose purely on the network layer.

Regards,

Rainer


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