| Measurement |
Description |
Measurement Unit |
Interpretation |
| Active_sessions |
Indicates the number of active user sessions currently on the AVD. |
Number |
This measure gives an idea of the server workload in terms of active sessions. Tracking the number of active sessions with time, an administrator can obtain information that can help him/her plan the capacity of their AVD environment. The detailed diagnosis capability, if enabled, lists the active and inactive sessions on the AVD. |
| Idle_sessions |
Indicates the number of sessions that are initialized and are currently ready to accept connections. |
Number |
For performance reasons, the number of idle sessions should be less than ten. |
| Connected_sessions |
Indicates the current number of sessions that are connected, but no user has logged on to the AVD. |
Number |
A consistent increase in the value of this measure could indicate that users are having trouble logging in. Further investigation may hence be required. |
| Connecting_sessions |
Indicates the number of sessions that are in the process of connecting. |
Number |
A very high value for this measure indicates a problem with the session or connection. |
| Disconnected_sessions |
Indicates the number of sessions from which users have disconnected, but which are still active and can be reconnected. |
Number |
Too many disconnected sessions running indefinitely on an AVD cause excessive consumption of the system resources. To avoid this, you can configure a MaxDisconnectionTime in the Windows registry. This will make sure that sessions that remain disconnected beyond the configured period of time automatically end. Additionally, you can set session time limits using the following group policies:
- Computer
Configuration\Policies\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Session Time Limits
- User
Configuration\Policies\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Session Time Limits
|
| Listen_sessions |
Indicates the current number of sessions that are ready to accept connections. |
Number |
|
| Shadow_sessions |
Indicates the current number of sessions that are remotely controlling other sessions. |
Number |
A non-zero value for this measure indicates the existence of shadow sessions that are allowed to view and control the user activity on another session. Such sessions help in troubleshooting/resolving problems with other sessions under their control. |
| Down_sessions |
Indicates the current number of sessions that could not be initialized or terminated. |
Number |
Ideally, the value of this measure should be 0.
By default, if sessions to any of these ports - 65536, 65537, 65538 - could not be initialized or terminated, they will not be counted as a
‘down session’. |
| Init_sessions |
Indicates the current number of sessions that are initializing. |
Number |
A high value for this measure could indicate that many sessions are currently experiencing initialization problems. |