Hello, I have recently installed Tomcat + mod_jk (with Apache). I have a struts action servlet and a JSP with a form on it. When submitting the form, every so often (randomly) I get an "Internal server error" page and in mod_jk.log the following line appears: [jk_ajp13_worker.c (606)]: Error sending request body When I hit reload (repost), the after-submission page is displayed correctly. I continue clicking on Submit and after several tries I get the same error. It only happens if I go through mod_jk, though. Repeating the same experiment with Tomcat as direct web server doesn't show any problems. I tracked down the error to be caused by stopping and restarting Tomcat while Apache is running (after I restart Apache, it disappears). Is it really true that Apache must be restarted whenever Tomcat is? If yes, what use is there for load balancing and replication if I have to reinitialize the dispatcher (mod_jk) even if only one of the workers dies?? This brings me to another issue: is it possible to reload a web application transparently to users (so that noone gets an "Internal server error" during servlet engine's restart)? This has been a big concern for me with JServ, is it still the same with Tomcat? Thanks - JPL
