Related Services

IAM

FRS uses Identity and Access Management (IAM) for authentication and authorization.

OBS

FRS allows users to read facial images from Object Storage Service (OBS).

CTS

FRS uses Cloud Trace Service (CTS) to record FRS operation events for future querying, auditing, and backtracking. Table 1 lists the operation events. For more information about CTS, see the Cloud Trace Service User Guide.

**Table 1** FRS operations supported by CTS
Operation	Resource Type	Event
Creating a facial image library	faceset	createFaceSet
Deleting a facial image library	faceset	deleteFaceSet

Cloud Eye

FRS uses Cloud Eye to monitor the number of API calls and latency of its sub-services. Table 2 shows the details. For more information about Cloud Eye, see the Cloud Eye User Guide.

**Table 2** Monitoring metrics of FRS
Metric	Description	Value Range	Monitored Object
Successful Calls of Service	Number of successful API calls The unit is times.	≥ 0 times	FRS
Failed Calls of Service	Number of failed API calls due to 5xx errors The unit is times.	≥ 0 times	FRS
Average Latency	Average latency of APIs The unit is ms.	≥ 0 ms	FRS
Face Counts	Number of faces in a facial image library Do not start the name of a facial image library with an underscore (_). Otherwise, the Cloud Eye service cannot collect the number of faces. The unit is count.	≥ 0 counts	FRS