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From Mohamed Rafi Sirajuddeen <sirajudd...@me.com>
Subject Re: [users@httpd] Apache 2.2.8 with mod_jk : timeout in reply pong
Date Tue, 13 Jan 2009 18:23:23 GMT

Hi,

Yes, the port 40593 is the ajp connector port. The http connector listens on port 40592, and
we're not using that in workers.properties.

Regards
Siraj M

>What tomcat connector is using port 40593? Since you can connect to it
>from a browser it sounds like HTTP.  Apache/mod_jk needs to connect to
>an ajp tomcat connector.
>
>
>--
>Ian.
>
>
>On Tue, Jan 13, 2009 at 12:27 AM, Mohamed Rafi Sirajuddeen
><sirajuddeen@me.com> wrote:
>> Hi,
>>
>> I have Apache 2.2 installed (on Unix), and I am using mod_jk for load balancing between
application server instances.
>>
>> I have configured httpd_VHostSSL.conf to redirect requests which come to the webserver.
Additionally, using mod_jk and workers.properties, I am load balancing the requests between
the application servers.
>>
>> When I start the apache servers, they get started successfully w/o any issues, But
when I connect to the application from the browser, the mod_jk logs show that the webserver
is unable to connect to the app-server instance. Following is the error message I am getting
from logs:
>>
>> [Tue Jan 13 00:19:40 2009] [69898:0000] [debug] jk_open_socket::jk_connect.c (335):
socket TCP_NODELAY set to On
>> [Tue Jan 13 00:19:40 2009] [69898:0000] [debug] jk_open_socket::jk_connect.c (433):
trying to connect socket 9 to xx.xx.xx.xx:40593
>> [Tue Jan 13 00:19:40 2009] [69898:0000] [debug] jk_open_socket::jk_connect.c (459):
socket 9 connected to xx.xx.xx.xx:40593
>> [Tue Jan 13 00:19:40 2009] [69898:0000] [debug] ajp_connect_to_endpoint::jk_ajp_common.c
(850): Connected socket 9 to (xx.xx.xx.xx:40593)
>> [Tue Jan 13 00:19:40 2009] [69898:0000] [debug] ajp_connection_tcp_send_message::jk_ajp_common.c
(896): sending to ajp13 pos=4 len=5 max=16
>> [Tue Jan 13 00:19:40 2009] [69898:0000] [debug] ajp_connection_tcp_send_message::jk_ajp_common.c
(896): 0000    12 34 00 01 0A 00 00 00 00 00 00 00 00 00 00 00  - .4..............
>> [Tue Jan 13 00:20:00 2009] [69898:0000] [info]  ajp_handle_cping_cpong::jk_ajp_common.c
(810): timeout in reply pong
>> [Tue Jan 13 00:20:00 2009] [69898:0000] [info]  ajp_send_request::jk_ajp_common.c
(1273): (node2) error connecting to the backend server (errno=60)
>> [Tue Jan 13 00:20:00 2009] [69898:0000] [info]  ajp_service::jk_ajp_common.c (1941):
(node2) sending request to tomcat failed,  recoverable operation attempt=2
>> [Tue Jan 13 00:20:00 2009] [69898:0000] [error] ajp_service::jk_ajp_common.c (1953):
(node2) Connecting to tomcat failed. Tomcat is probably not started or is listening on the
wrong port
>> [Tue Jan 13 00:20:00 2009] [69898:0000] [debug] ajp_done::jk_ajp_common.c (2286):
recycling connection pool slot=0 for worker node2
>>
>> However, I am able to telnet to the IP:port from the command prompt, and also able
to directly connect to the tomcat instance from the browser (http://xx.xx.xx.xx:40593)
>>
>> Also, when the webserver logs say request timeout, I check the tomcat logs during
the same duration, I dont even check the requests hitting the tomcat server. Both the apache
server and tomcat server are in the same subnet, and hence there is no issue of ACLs etc..
>>
>> Any help would be greatly appreciated.
>>
>> Regards
>> Siraj M
>>
>>
>>
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>
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