Updated on 2026-08-25 GMT+08:00

Querying Index Usage Statistics

Function

This API is used to query index usage statistics.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.

If you are using role/policy-based authorization, see Permissions and Supported Actions for details on the required permissions.
If you are using identity policy-based authorization, the permission listed below is required.

Action

Access Level

Resource Type (*: required)

Condition Key

Alias

Dependencies

das::showCloudDBAInfo

read

-

-

-

-

Action	Access Level	Resource Type (*: required)	Condition Key	Alias	Dependencies
das::showCloudDBAInfo	read	-	-	-	-

URI

GET /v3/{project_id}/instances/{instance_id}/index-usage/get-index-usage-statistics

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition Project ID of a tenant in a region. To obtain the value, see Obtaining a Project ID. Constraints N/A Range The value can contain 32 characters. Only letters and digits are allowed. Default Value N/A
instance_id	Yes	String	Definition Instance ID, which uniquely identifies an instance. Constraints N/A Range The value can contain 32 characters. Only letters and digits are allowed. Default Value N/A

Request Parameters

None

Response Parameters

Status code: 200

**Table 2** Response body parameters
Parameter	Type	Description
collect_time	Long	Definition Collection time (ms). Range N/A
total_index_usage_count	Long	Definition Total index usage count. Range N/A
index_size_mb	Double	Definition Total space occupied by indexes (MB). Range N/A
fragmentation_gl30_count	Long	Definition Number of indexes whose fragmentation rate is greater than 30%. Range N/A
key_lookup_lt100_count	Long	Definition Number of indexes whose lookup count is less than 100. Range N/A

Example Requests

GET https://das.cn-north-1.myhuaweicloud.com/v3/2cfb7eecd30f497f8e21f03106c7a604/instances/5eb0301017874d4b8d8e697ab8e5857ain04/index-usage/get-index-usage-statistics

Example Responses

Status code: 200

Success.

{
    "collect_time": 1764204246000,
    "total_index_usage_count": 318,
    "index_size_mb": 10934.45,
    "fragmentation_gl30_count": 148,
    "key_lookup_lt100_count": 0
}

Status Codes

Status Code	Description
200	Success.
400	Client error.
500	Server error.

Error Codes

See Error Codes.

Parent topic: Intelligent O&M