On 14/07/2016 20:26, Berneburg, Cris J. - US wrote: > Hi Folks > > I got this error from the Tomcat Web Application Manager after having stopped > and started one of the applications multiple times. (This was after > repeatedly deploying the application manually to attempt to find a bug that I > could not reproduce in my IDE.) Once the error occurred, the server was > extremely sluggish to respond even to remote desktop mouse and keyboard > events. > > FYI, I deploy the app by stopping it on the Tomcat web manager, deleting > almost everything out of the app folder using file manager, copying the new > files and folders in, then starting the app from the Tomcat manager. > > Here's the error: > > FAIL - Application at context path /someapp could not be started > FAIL - Encountered exception java.lang.OutOfMemoryError: PermGen space > > Is this likely due to a memory leak in my application?
Yes. > Or does it have something to do with me doing so many repeated deployments? Also yes. > Or perhaps simply from restarting the app so many times? Stop/start has the same effect as redeploy in this case. > I might try an experiment to see how many times I can stop/start the app > before the error next occurs. > > OS: Win Server 2012 R2 > Java: 1.6.0_24 (oops, need to upgrade that now) > Tomcat: 6.0.37 (hmm... will need to upgrade soon-ish) Indeed. Some upgrades are certainly in order. Not least because some of the potential sources of memory leaks are JVM bugs that are fixed in the lastest Java 8 releases. This is probably a useful read: http://people.apache.org/~markt/presentations/2010-11-04-Memory-Leaks-60mins.pdf Despite the age, it is still very relevant today. Mark --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
