Get heap dump from a remote application in Java using JVisualVM

Question

I run JVisualVM (Windows XP, Sun Java 1.6.0.13, 32 bit client VM) to monitor a distant application (Linux, Sun Java 1.6.0.07, 64 bit server VM). Before starting the actual r

Answer 1

There is a way to do it!

1. rmiregistry -J-Xbootclasspath/p:$JAVA_HOME/lib/sa-jdi.jar ( this uses port 1099)
2. start 'jsadebugd' on the machine in which application is running: jsadebugd & (pid of JVM)

3. On remote machine use following jmap -dump:file= :1099

4. jhat

The above will start a web application at port 7000

All the above tools are part of JDK 1.6

All the best!