Recently my webserver hanged few times in a week. After login into server to troubleshoot, found out the two lshttpd processes was 100% CPU utilised (refer attachment). Checked the access.log and error.log but seems like nothing unusual. After i excecute ./lswctrl stop and start again, it's seems like back to normal. Any advise? I'm using Litespeed Web Server Enterprise v4.0.13 on CentOS, running HTTP and HTTPS with Tomcat and PHP and equipped with 2Mbps dedicated international bandwidth.