This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
We have our production running under Red ha Linux environment. We are using JDK 1.5.19 version. We are using Tomcat 6.0.18 as our web server.
What we observe is, the heap dump size and the resident memory sizes are not matching at all. If the Resident memory(RES) size is at 2GB, the heap dump size is 220MB. We are having a huge performance hit due to this.
Is this normal pattern or are we facing memory leak? We have analyzed the heap dump and fixed few issues in it. However, what we think is, memory is leaking not in the heap but some where else. Please can somebody help us on this.
PS: Sorry for the re post... Nobody is answering this on Java forum