Application Traffic Exceptions
Symptom
When the network traffic of an application process on a cloud phone exceeds the preset threshold, the engine reports an application traffic exception event (VMI_ENGINE_EVENT_APP_TRAFFIC_ABNORMAL). A related message (the content depends on the ISV's implementation) is displayed on the GUI.
Impact on the System
When this fault occurs, the engine client cannot work properly. Severe overheating, frame freezing, or drawing errors may occur, which affects user experience. After reporting a VMI_ENGINE_EVENT_APP_TRAFFIC_ABNORMAL event, the engine client exits.
When this fault occurs, the engine server is disconnected from the client and switches from the online state to the offline state. In the offline state, apps in the cloud phone still run. However, in this case, touch input of the engine client cannot be received, and audio/drawing instructions of apps cannot be transmitted to the engine client.
Possible Cause
The application traffic between the engine server and engine client is abnormal. Possible causes are as follows:
Some application processes in the cloud phone (engine server) are abnormal or attacked, and the number of drawing instructions sent to the engine client exceeds the threshold.
Procedure
- Disconnect the mobile phone from the cloud phone.
- Restart the cloud phone through the user management system provided by the ISV.
- Reconnect the mobile phone to the cloud phone. The service recovers.