CreateRequestDiagnosis - Database Autonomy Service - Alibaba Cloud Documentation Center

Initiates an SQL statement diagnostics request on an instance connected to DAS.

Before you call this operation, make sure that the following requirements are met:

If you use an SDK to call DAS, you must set the region to cn-shanghai.
This operation can be used in the following database services:
- RDS MySQL
- RDS PostgreSQL
- RDS SQL Server
- PolarDB for MySQL
- PolarDB for PostgreSQL(Compatible with Oracle)
- ApsaraDB for MongoDB

Note The minor engine version of an RDS for PostgreSQL instance is 20220130 or later. For more information, see Update the minor engine version of an RDS for PostgreSQL instance.

Request parameters


Parameter	Type	Required	Example	Description
Action	String	Yes	CreateRequestDiagnosis	The operation that you want to perform. Set the value to CreateRequestDiagnosis.
InstanceId	String	Yes	rm-0iwhhl8gx0ld6****	The ID of the instance.
NodeId	String	No	202****	The ID of the node. Note This parameter must be specified for cluster instances such as PolarDB for MySQL, PolarDB for PostgreSQL(Compatible with Oracle), and ApsaraDB for MongoDB.
Database	String	Yes	das	The name of the database.
Sql	String	Yes	select * from test where name = 'mockUser'	The SQL statement to be diagnosed.

Response parameters


Parameter	Type	Example	Description
Code	String	200	The returned HTTP status code.
Message	String	Successful	The returned message. Note If the request is successful, Successful is returned. If the request fails, an error message that contains information such as an error code is returned.
Data	String	61820b594664275c4429****	The unique ID of the diagnostic task. It is used to query the diagnosis result later.
RequestId	String	800FBAF5-A539-5B97-A09E-C63AB2F7****	The ID of the request.
Success	String	true	Indicates whether the request is successful. Valid values: true: The request is successful. false: The request fails.

Examples

Sample requests

http(s)://das.cn-shanghai.aliyuncs.com/?Action=CreateRequestDiagnosis
&InstanceId=rm-0iwhhl8gx0ld6****
&NodeId=202****
&Database=das
&Sql=select * from test where name = 'mockUser'
&Common request parameters

Sample success responses

XML format

HTTP/1.1 200 OK
Content-Type:application/xml

<CreateRequestDiagnosisResponse>
    <Code>200</Code>
    <Message>Successful</Message>
    <Data>61820b594664275c4429****</Data>
    <RequestId>800FBAF5-A539-5B97-A09E-C63AB2F7****</RequestId>
    <Success>true</Success>
</CreateRequestDiagnosisResponse>

JSON format

HTTP/1.1 200 OK
Content-Type:application/json

{
  "Code" : "200",
  "Message" : "Successful",
  "Data" : "61820b594664275c4429****",
  "RequestId" : "800FBAF5-A539-5B97-A09E-C63AB2F7****",
  "Success" : "true"
}

Error codes


HttpCode	Error code	Error message	Description
400	InvalidParams	The request parameters are invalid.	The error message returned because the specified request parameters are invalid.

For a list of error codes, visit the API Error Center.