Hi - We are running tomcat version 7.0.50. Starting 2 days ago are application stopped responding to requests. Our investigation showed us that we are not closing connections. We see after 300 tcp sessions, for the tomcat PID, in CLOSE_WAIT state out app stops responding. Restarting the app clears the state.
We took tcpdumps between our web layer and our tomcat layer. What we see in a successful connection is, after the response, tomcat sends a FIN, web ACK's, then web sends a FIN and Tomcat ACK's.. connection closes In a bad connection, tomcat does not send its FIN after the response, after 3 minutes, the WEB sends a FIN and tomcat ACK's. the connection goes into CLOSE_WAIT and stays in that state until restart of tomcat. Any help would be greatly appreciated. Thanks Michael
