THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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- Look into Tomcat access log (the log file generated by AccessLogValve).
- If your request is not listed there, then it has not been processed by Tomcat. You need to look elsewhere (e.g. at your firewall).
- You will see what IP address your client is using, and whether it is using an IPv4 (
127.0.0.1) or IPv6 address (0:0:0:0:0:0:0:1). Modern operating systems can use IPv6 addresses for localhost / local network access, while external network is still using IPv4.
2. Take a thread dump. This way you will find out what Tomcat is actually doing. - If you are troubleshooting some process that takes noticeable time, take several (three) thread dumps with some interval between them. This way you will see if there are any changes, any progress.
3. Try debugging. - A good place for a breakpoint is
org.apache.catalina.connector.CoyoteAdapter.service()method. That is the entry point from Tomcat connectors and into the Servlet engine. At that place your request have already been received and its processing starts.
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