How to connect to Java instances running on EC2 using JMX

Question

We are having problem connecting to our Java applications running in Amazon\'s EC2 cluster. We definitely have allowed both the \"JMX port\" (which is usually the RMI regist

Answer 1

A bit different approach by using ssh tunnels

1. (On the Remote machine) Pass the following flags to the JVM

   -Dcom.sun.management.jmxremote.port=1099
   -Djava.net.preferIPv4Stack=true
   -Dcom.sun.management.jmxremote.ssl=false
   -Dcom.sun.management.jmxremote.authenticate=false
   -Djava.rmi.server.hostname=127.0.0.1
   

2. (On the Remote machine) Check which ports java started to use

   $ netstat -tulpn | grep java
   tcp      0      0 0.0.0.0:37484         0.0.0.0:*               LISTEN      2904/java
   tcp      0      0 0.0.0.0:1099          0.0.0.0:*               LISTEN      2904/java
   tcp      0      0 0.0.0.0:45828         0.0.0.0:*               LISTEN      2904/java
   

3. (On the local machine) Make ssh tunnels for all the ports

   ssh -N -L 1099:127.0.0.1:1099 ubuntu@
   ssh -N -L 37484:127.0.0.1:37484 ubuntu@
   ssh -N -L 45828:127.0.0.1:45828 ubuntu@`
   

4. (On the local machine) Connect by Java Mission Control to localhost:1099