I found the problem.... and this time it wasn't my fault! :-) I used a profiler (www.yourkit.com) and took a snapshot of all the objects in the JVM. I found that tons of RAM is being used by images of my delivered http responses. I mean, I have thousands of static HTML pages in my site. It seems that Tomcat is saving their content in the memory, as a cache, in thousands of objects.
That was the hardest part, to find out that. Now I wonder where do I configure Tomcat to stop doing this, or at least to reduce the cache..... > -----Original Message----- > From: Caldarale, Charles R [mailto:chuck.caldar...@unisys.com] > Sent: Thursday, November 11, 2010 02:11 PM > To: Tomcat Users List > Subject: RE: Tomcat 6.0.29 using more and more RAM until it collapses? > > From: Brian [mailto:bbprefix-m...@yahoo.com] > > Subject: Tomcat 6.0.29 using more and more RAM until it collapses? > > > I don't think my app is taking all this RAM > > It is. > > > when I restart it, the RAM usage doesn't go down. > > Classic symptom of a webapp leaking memory due to holding onto > > > It seems like if Tomcat is leaving garbage in the JVM or something > > like that. > > Nope - it's your webapp. > > > Does anybody know what should I do to solve this? > > Fix your webapp(s). Start with a heap profiler, and look to see what's > consuming the space. The problem may also include memory leaks outside of > the heap, such as failing to close files, or starting and forgetting about auxiliary > threads. > > Start reading here: > http://wiki.apache.org/tomcat/FAQ/Memory > http://wiki.apache.org/tomcat/OutOfMemory > http://wiki.apache.org/tomcat/MemoryLeakProtection > > > - Chuck > > > THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE > PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If > you received this in error, please contact the sender and delete the e-mail and its > attachments from all computers. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
