I am experienced problem about apache tomcat webapp. I can open my webapp page fast but sometime it is very slow to get access to webapp page (https://example-ip:9443
During this problem happen, I found that CPU performance, Network performance, Memory usage has no problem. This Tomcat server is running on production server. Do you know how can I check root cause of this problem. I will investigate catalina log file also, Which part of log or keyword do I need to concentrate. Thank you.