On 11/11/2010 18:54, Brian wrote: > I don't think my app is taking all this RAM, because when I restart it, the > RAM usage doesn't go down. It does only if I restart Tomcat itself, instead > of my app running there.
Yes, this is a classic sign of a problem with the app. Reboot Tomcat, restart your app a couple of times (this bit is important). Connect to the Tomcat instance using JConsole, navigate the MBeans, to Catalina > Hosts > (your hostname), then select the Operations tab, under which you'll see a button called "findReloadContextMemoryLeaks". Push the button. It will return a list of app names if Tomcat can detect ones with memory leaks. NB No results doesn't necessarily mean your app isn't leaking. p
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