how to allocate dynamic port and get details of that[JMX]

Question

Requirement: I want to run multiple process(with remote properties ieDcom.sun.management.jmxremote.port ) that can be view remotely via JMX on another machine.

Initially Dcom.sun.management.jmxremote.port= 9875 (picking from properties files) but it stricts me to run single process only.saving port information from the machine(where i am running process) in database for further use .

Then I used -Dcom.sun.management.jmxremote.port= 0 for dynamic port allocation to run multiple process.Now i can run multiple process but i am not able to get the port information so that i can save that information in database that will be used further for remote connection.

Thanks.

Answer 1

I have used this trick to get dynamic port

ServerSocket socket = new ServerSocket(0); int jmxPort = socket.getLocalPort();

This will allocate a dynamic port and then pass it to as VM args Dcom.sun.management.jmxremote.port=jmxPort

jmx port can be saved in database and can be used when need to make JMX connection.

Hope will be helpful.