I have a weird issue. Every time I stop Tomcat, SSH becomes very slow, almost totally unresponsive. It takes a minute or even more for SSH to accept any command. When I finally get Tomcat started again everything goes back to normal.
This is happening on a very busy server. Problem is that I need to stop the Tomcat often because of the application upgrades. It would normally take few seconds to upgrade, but here it takes almost 10 minutes and because of that we are experiencing unwanted downtimes.
One thing that I see is when I stop Tomcat
top shows a lot of
ksoftirqd/X processes at 100% CPU. Could this be the issue?
Kernel version is:
Red Hat version is:
Red Hat Enterprise Linux Server release 5.9 (Tikanga)
Any idea why this is happening?