I am using the AJP13 Connector to map requests from IIS, acting as front end web server, to Tomcat as my middle ware. This was working fine for a long time with only minor problems, but recently, the failure rate has increased dramatically that 25% of the transactions are failing.
I have taken a look at the Isapi log, and this is what I got:
====================================================================== [Wed Jun 14 14:09:46 2006] [info] ajp_service::jk_ajp_common.c (1665): Sending request to tomcat failed, recoverable operation attempt=0 [Wed Jun 14 14:12:00 2006] [error] ajp_connection_tcp_get_message::jk_ajp_common.c (933): ERROR: can't receive the response message from tomcat, network problems or tomcat is down (192.168.47.20:8009), err=-1 [Wed Jun 14 14:12:00 2006] [error] ajp_get_reply::jk_ajp_common.c (1432): Tomcat is down or network problems. No response has been sent to the client (yet) [Wed Jun 14 14:12:00 2006] [info] ajp_service::jk_ajp_common.c (1645): Receiving from tomcat failed, recoverable operation attempt=0 [Wed Jun 14 14:12:00 2006] [info] ajp_service::jk_ajp_common.c (1665): Sending request to tomcat failed, recoverable operation attempt=0 =====================================================================
I have a log full of these messages now, and as the error suggests either Tomcat is down or its a network problem. Tomcat is up, and we tried restarting it. Also, we did a ping between IIS and Tomcat for continuous 24 hours without any problems. So, there is no network problem it seems.
I have even gone further and disabled TomcatAuthentication! So now, we are real stuck and in a very bad shape. Its extremely important to get it fixed soon.
Anyone with any hints, please dont hesitate to help. [ June 14, 2006: Message edited by: javaLight ]