1. The map service fails to be started
- When the service is stopping and you manually start the service, a message is displayed indicating that port 4000 is occupied. At this time, it is found that the port is occupied by the server’s own javaw.exe program. At this time, you need to manually stop the ArcGIS Servre service and end the javaw.exe process in task Manager. Restarting the service generally resolves the problem