How can i get message publisher？

[Alexety]

How can I distinguish which leaf node is sending this message in the core cluster in Java. My architecture is a central cluster with multiple leaf clusters.

[scottf]

When you connect to a server with the java client, you get an instance of a Connection object. The Connection object has a method called getServerInfo(). ServerInfo has an id you can read with getServerId(). This id is always set by the server itself. There is also a name you can read with getServerName(). The name you can set yourself in the server conf with the server_name property

You could use this id or name as either part of your message payload, or as message header.

[Alexety]

Thank you for your reply. I think I have found a way to solve this problem.