Hi, I am using Apache 2.2.3 with mod_jk 1.2.31 and Tomcat 6.0.30 .
I have never had issues with using mod_jk to connect my Apache requests to a tomcat instance before now but I am now running into a situation where Apache requests going to a tomcat instance on another server are giving me an "400 Bad Request" and I can't seem to get more information on why this is happening. I turned on debug log level for mod_jk and I see the following: [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] service::jk_lb_worker.c (1118): service sticky_session=1 id='empty' [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] get_most_suitable_worker::jk_lb_worker.c (1001): found best worker w1worker1 (w1worker1) using method 'Request' [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] service::jk_lb_worker.c (1161): service worker=w1worker1 route=w1worker1 [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] ajp_get_endpoint::jk_ajp_common.c (3096): acquired connection pool slot=0 after 0 retries [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] ajp_marshal_into_msgb::jk_ajp_common.c (605): ajp marshaling done [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] ajp_service::jk_ajp_common.c (2379): processing w1worker1 with 2 retries [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] ajp_send_request::jk_ajp_common.c (1572): (w1worker1) all endpoints are disconnected. [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] jk_open_socket::jk_connect.c (484): socket TCP_NODELAY set to On [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] jk_open_socket::jk_connect.c (608): trying to connect socket 46 to 172.23.1.132:8009 [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] jk_open_socket::jk_connect.c (634): socket 46 [172.23.1.133:37865 -> 172.23.1.132:8009] connected [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] ajp_send_request::jk_ajp_common.c (1632): (w1worker1) request body to send 0 - request body to resend 0 [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] ajp_connection_tcp_get_message::jk_ajp_common.c (1329): received from ajp13 pos=0 len=19 max=8192 [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] ajp_connection_tcp_get_message::jk_ajp_common.c (1329): 0000 04 01 90 00 0B 42 61 64 20 52 65 71 75 65 73 74 - .....Bad.Request [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] ajp_connection_tcp_get_message::jk_ajp_common.c (1329): 0010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 - ................ [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] ajp_unmarshal_response::jk_ajp_common.c (660): status = 400 [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] ajp_unmarshal_response::jk_ajp_common.c (667): Number of headers is = 0 [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] ajp_connection_tcp_get_message::jk_ajp_common.c (1329): received from ajp13 pos=0 len=2 max=8192 [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] ajp_connection_tcp_get_message::jk_ajp_common.c (1329): 0000 05 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 - ................ [Mon Jul 21 09:57:20 2014] [16825:47908532024176] [debug] ajp_process_callback::jk_ajp_common.c (1943): AJP13 protocol: Reuse is OK In this example, it's trying to connect to a tomcat on another server listening to port 8009 (172.23.1.132:8009). From the Apache server, I can telnet to port 8009 on server 172.23.1.132 so I know the port is listening and not blocked by a firewall. I'm not really sure what else to try. Sorry if this is the wrong forum. Thanks, Charles
