How CTS Functions

CTS directly interconnects with other Huawei cloud services, and records operations on cloud resources and the results in real time.

You can use CTS to create trackers to record trace files. If trace transfer to OBS and LTS has been configured, trace files will be stored in the specified OBS buckets and LTS log groups.

You can perform the following operations on a trace file:

• Trace file creation and storage
  • When you add, delete, or modify resources on services interconnected with CTS, such as Elastic Cloud Server (ECS), Elastic Volume Service (EVS), and Image Management Service (IMS), the target services will record the operations and their results automatically and deliver them in the form of trace files to CTS for archiving.
  • The CTS console retains operation records for seven days. If trace transfer to OBS or LTS has been configured, trace files will be periodically sent to the specified OBS buckets or LTS log groups for long-term storage.
  • Traces are automatically deleted from the CTS console upon expiration after seven days. Manual deletion is not supported.

• Trace file query
  • You can query operation records generated in the last seven days on the Trace List page by time and other filters.
  • If trace transfer has been configured, you can query operation records earlier than seven days by downloading trace files from corresponding OBS bucket or LTS log group.
  • You can enable, disable, configure, or delete a tracker on the Tracker List page.

For example, if you create an image using IMS, the service will report the creation operation to CTS. Then, CTS will deliver the trace to an OBS bucket for storage if trace transfer has been configured. You can view trace files in the trace list of CTS. Figure 1 shows the working principle of CTS.

Figure 1 How CTS functions