Can anybody tell me what all the internal process happening after we start tomcat(using startup.bat)?
can anybody explain the step by step flow of how tomcat works?
something like this.. 1.deployment discriptor is looked in. etc etc
These sequence diagrams are a little out of date - I think they were last updated for Tomcat 4.1 or 5.0 but they'll give you the general idea. The overall sequence is pretty much unchanged although some of the detail (like the method names) has changed. It also doesn't show things like the annotation scanning added in Servlet 3.0. However, since this is open source, you could just look at the source code and/or step through it with a debugger.