Java Web应用程序和内存

Question

I have written an JSF web application (I really like the technology). I have noticed that when I use the application the memory used by java.exe goes up and up and it will never goes down. I use Java SE 7/8, Glassfish 4.0 and JSF 2.2.5. The application is using connection pool for the MariaDB server. The more data I pull from the server, the more memory java.exe is using.

How can I find what is causing this and how can I fix it? If you need more information let me know.

Answer 1

First, a tool you can use to check your memory is JVisualvm. It's distributed with JDK, so check for it in your JDK's installation path, in /bin directory.

Then, there are some params you can pass to jvm at runtime. This parameters are util for establish memory use of your application. Maybe this link is useful for you: http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html