A couple of times each day (doesn't seems to be any pattern to when or why) i get this error in the log
[Sat Jul 14 20:46:23 2007] [5336:5144] [error] jk_ajp_common.c (1953): (worker1) Connecting to tomcat failed. Tomcat is probably not started or is listening on the wrong port [Sat Jul 14 20:46:23 2007] [5336:5144] [error] jk_isapi_plugin.c (1499): service() failed with http error 503
Sometimes I just see the error one time, and the system continues on afterwards. Sometimes the error repeats itself (everytime a request is send to the connector). I know that the tomcat is running fine, as requests can be made to 8080 without problems.