Did you reviewed the localhost_access log file. Which web-application is using tomcat the most ?
On Thu, Aug 8, 2019 at 9:53 AM Eric Robinson <eric.robin...@psmnv.com> wrote: > We have a farm of VMs, each running multiple instances of tomcat (up to 80 > instances per server). Everything has been running fine for years, but > recently one server has started nailing the CPU to 100% utilization. > > We have tried: > > > * Different versions of tomcat and JDK > * Doubling the resources to 16 cores and 56 GB RAM > * Moving the VM to different physical server > * Rebuilding the tomcat instances on a brand new VM using Windows > Server 2019 > * Rebuilding the tomcat instances on a brand new VM using Red Hat > Enterprise Linux 7.5 > > Nothing has worked. No matter where we run the tomcats, they drive CPU up > to 100%. Meanwhile the other six servers are still running fine. They all > run the same canned tomcat applications. > > We would appreciate some guidance on getting to the bottom of this problem. > > --Eric > > > Disclaimer : This email and any files transmitted with it are confidential > and intended solely for intended recipients. If you are not the named > addressee you should not disseminate, distribute, copy or alter this email. > Any views or opinions presented in this email are solely those of the > author and might not represent those of Physician Select Management. > Warning: Although Physician Select Management has taken reasonable > precautions to ensure no viruses are present in this email, the company > cannot accept responsibility for any loss or damage arising from the use of > this email or attachments. >
