Max OS X Tomcat web application server intermittantly very slow response
Posted on 2010-08-12
A Mac OS X 10.6 is running Tomcat 5.5. Performance can be very, very slow at times ... 10+ second waits. At other times it is very fast ... on the same page, doing the same thing. The longer it is between activity on the browser the more likely a long delay is going to occur. So if user keeps hitting the page response will be good for maybe 20 hits before a slow down. If user waits a minute response is likely to be poor right away. When the delay happens the browser page is blank. There are no log entries indicating a network problem.
This problem seemed to appear when we moved offices. At that time a managed switch was removed and replaced by an unmanaged switch. Another Mac was set up with identical applications on Tomcat. Initially it ran fine with no long delays but then I changed its default gateway to a different router and it then showed intermittant slow reponse.
This performance problem occurs both on the Internet and inside the network. It is very frustrating and we've tried quite a few things to resolve it.
There is nothing about the application that is being run that would cause this slow down. It is definitely a network issue. Everything used to work fine at our old office. Cannot think of what could be causing the trouble.