Please stop or kill the slave node which is hung. Then initiate to start the slave node.
When a node is hung then you will not able to restart the node gracefully.
Get the process id of the slave server with the ps command and use kill -9 <pid> to kill the server.
And then try to start
Ann Mathew wrote:
The slave jboss server was hung so we are trying to restart the server in production. But its complaining about slave jboss is still available with master. So Is there any way to unregister slave from master jboss?
Please find the process id of your slave node , kill it using kill -9 <pid>.
Make sure that your process is not in zombie state.
Also try to capture and analyze GC logs to find out what caused your server to go in hung state.