Following the update of the tomcat 7 version from 7.0.28-4 to 7.0.56-1 hoping to improve our application performances we experienced a quick freeze of the application under a standard load (that was handle by previous tomcat version without particular issue).
Our application is behind a nginx server and receives a high volume of HTTP requests from client and is using servlet 3.0 async features. While investigating we made following observations: 1/ catalina.out shows a high number of IOException Broken pipe. 2/ a high number of CLOSE_WAIT appear between nginx and tomcat. I have uploaded a catalina log, an lsof and a netstat capture made while the issue was happening: http://s000.tinyupload.com/index.php?file_id=85064286189504330545 (email size limit prevented me from attaching them to the message). Any pointer is welcomed. Also is there a way to have more details on connection status of tomcat ? Thanks, Thomas
