The test environment:
1. Server dozen jars, closed self protection mechanism, set up not to register as a client,
2. Then open a client, a heartbeat monitoring a set 20 seconds from the server without listening to eliminate,
3. Then I put the client closed, no server is an error in a minute, registration page haven't got directly,
4. The request of new bosses can set no client registered also can let the server run normally, interface