How to monitor java application memory usage in Docker

Question

I run the java web application on tomcat in the Docker container.

Is there any way to monitor the memory usage of the java application? I try to use jconsole<

Answer 1

To connect to a java process running in a docker container running in boot2docker with visualvm you can try the following:

Start your java process using the following options:

java -Dcom.sun.management.jmxremote.port= \
-Dcom.sun.management.jmxremote.authenticate=false \
-Dcom.sun.management.jmxremote.ssl=false \
-Dcom.sun.management.jmxremote.rmi.port= \
-Djava.rmi.server.hostname= \

You need to run your image with --expose -p :.

Then "Add JMX Connection" in visualvm with :.

It shouldn't be much different without boot2docker.