Fault Locating¶
Scenarios¶
If a resource or an action encounters an exception, you can query operation records for the resource or action in a specified time period and view the requests and responses to facilitate troubleshooting.
Prerequisites¶
You have enabled CTS and the tracker is running properly. For details on how to enable CTS, see Enabling CTS.
Procedure¶
To locate an ECS fault which occurred in the morning:
Log in to the management console as an administrator.
Click
in the upper left corner to select the desired project.Click Service List and choose Management & Deployment > Cloud Trace Service.
Choose Trace List in the navigation pane on the left.
Set filters in sequence: Trace Source > Resource Type > Search By. Then click Query to view the result.
Note
Select ecs for Trace Source, ecs for Resource Type, and Resource ID for Search By. Enter the ID of the faulty virtual machine (VM), and select a time range from 06:00:00 to 12:00:00 on the day when the fault occurred in the upper right corner. Then click Query.
Check the returned traces, especially the request type and response of each trace. Note any traces whose status is warning or incident, and any traces whose response indicates a failure.
To locate a fault after an ECS server failed to be created:
Log in to the management console as an administrator.
Click
in the upper left corner to select the desired project.Click Service List and choose Management & Deployment > Cloud Trace Service.
Choose Trace List in the navigation pane on the left.
Select esc for Trace Source, ecs for Resource Type, and warning for Trace Status. In the returned traces, locate the trace named createSingleServer.
Check the trace details and locate the fault based on the error code or error message.