Solved by lcw in post #6 
              
              
                If you terminate the processes (e.g., Ctrl+C) you should be able to see a backtrace telling you where they are stuck. Is it at the init_rpc function? 
If so, @mrshenli do you know if we have a way to get more verbose logging information from the TCPStore to see what’s going on? 
There’s one thing yo…