Status and management
Server operation can be managed from the Admin tab, under Status and Management (figure 3.8).
Under the User statistics tab, you can find information about the "Number of users logged in", i.e., the number of users currently logged in, and "Number of logins", i.e., how many active sessions there is across all users. For example, if one user is logged in through the web interface and through the workbench, user statistics would show:
- Number of users logged in: 1
- Number of logins: 2.
Under the Server Maintenance tab you can modify the server status.
- Normal Operation: The server is running.
- Maintenance Mode: Current jobs are allowed to run and complete, but submission of new jobs is restricted. While the server is in maintenance mode, users that were already logged in can check the progress of their run or their data, but cannot submit new jobs. Users that were logged out cannot log in. An administrator can write a warning message that will inform users about the expected period of time in which the server will be in maintenance mode.
- Log Out Users: All users currently logged in will be logged out and all running jobs will be allowed to complete. As with the maintenance mode, no user can log in while the server is in Log Out Users mode. An administrator can also write a customized warning message for the users.
- Shut down: The server and any attached job nodes will shut down .
- Restart: The server and any attached job nodes will be shut down and restarted.