Every once in a while I get the error
SRVE0255E: A WebGroup/Virtual Host to handle /KillerApp has not been defined
This is most often caused by me typing either the wrong port number (if no web server is configured) or a type in the context root of the web application. Currently following an internal course where I was supposed to deploy an app and find the url to it. According to what I know it should be http://localhost:9080/KillerApp since the WC_defaulthost of server1 was 9080. But after many minutes of struggle I kept getting the error again and again…so then Google…
IBM Redbook to the rescue, “WebSphere Application Server V6.1: Web Container Problem Determination“. It turned out to be a very simple, and also stupid solution on the problem. Stupid, since I had caused the problem myself. Some time ago I must have altered the default_host virtual host settings, so I had changed the host alias from 9080 to 9089.
This post at coderanch.com helped me find the info, see the last comment to the issue. It references the redpiece, not the redbook, so use my link instead.