If a resource or an action encounters an exception, you can query records of the resource or action in a specified time period and view its request and response to facilitate fault locating.
You have enabled CTS and the tracker is normal. For details about how to enable CTS, see Enabling CTS.
The following steps use an ECS as an example to describe how to locate an ECS fault.
For example, you can select ECS for Trace Source, ecs for Resource Type, and Resource IDfor Search By, enter ID of the faulty VM in the right text box, and set the time range to 06:00 to 12:00 at a certain date.