Querying the Relationship Between Blocked Sessions

Function

This API is used to query the relationship between blocked sessions.

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}/lock-blocking/get-lock-blocking-relationship

**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

**Table 2** Query parameters
Parameter	Mandatory	Type	Description
unique_id	Yes	String	Definition Batch ID. Constraints N/A Range N/A Default Value N/A
spid	Yes	String	Definition Session ID. Constraints N/A Range N/A Default Value N/A

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
detail_list	Array of objects in Table 4	Definition Blocked session details. Range N/A
total	Long	Definition Total number. Range N/A

**Table 4** detail
Parameter	Type	Description
id	String	Definition ID. Range N/A
unique_id	String	Definition Batch ID. Range N/A
spid	Long	Definition Session ID. Range N/A
blocked_by_spid	Long	Definition Blocked session ID. Range N/A
collect_time	Long	Definition Collection time. Range N/A
start_time	Long	Definition Start time of SQL statement execution. Range N/A
elapsed_time	Long	Definition Execution duration (ms). Range N/A
cpu	Long	Definition CPU time (ms). Range N/A
wait_time	Long	Definition Blocking duration (ms). Range N/A
wait_type	String	Definition Wait type. Range N/A
sql	String	Definition SQL statement. Range N/A
query_hash	String	Definition Query hash. Range N/A
db_name	String	Definition Database name. Range N/A
host_name	String	Definition Client host name. Range N/A
client_app_name	String	Definition Client name. Range N/A
login_id	String	Definition Current user. Range N/A
cmd	String	Definition SQL command type. Range N/A
physical_io	String	Definition I/O consumed by SQL statements. Range N/A

Example Requests

GET https://das.cn-north-1.myhuaweicloud.com/v3/054e292c9880d4992f02c0196d3ea468/instances/298ad59e995d48b185188c41d5b40268in04/lock-blocking/get-lock-blocking-relationship?spid=579&unique_id=9F1A07BB6B9D4E2D93F6030D65718912

Example Responses

Status code: 200

Success.

{
    "detail_list": [
        {
            "id": "1178209792_16",
            "unique_id": "9F1A07BB6B9D4E2D93F6030D65718912",
            "spid": 88,
            "blocked_by_spid": 579,
            "collect_time": 1764212163180,
            "start_time": 1764212085603,
            "elapsed_time": 77577,
            "cpu": 168,
            "wait_time": 77431,
            "wait_type": "LCK_M_S",
            "sql": "IF EXISTS(SELECT 1 FROM dbo.Wlt_Wms_SourceBillIndex WHERE GraspBillID=@OldBillID AND SourceBillType='SaleOrder')",
            "query_hash": "653463136AAFFB23",
            "db_name": "CMCSYUN533381",
            "host_name": "ECS-7E43",
            "client_app_name": "Data Admin Service (DAS)",
            "login_id": "root",
            "cmd": "CONDITIONAL",
            "physical_io": 0
        }
    ],
    "total": 1
}

Status Codes

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

Error Codes

See Error Codes.

Parent topic: Intelligent O&M

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