Modifying Database Parameters

Function

This API is to modify database parameters.

Constraints

This API can be called only for MySQL migration and MySQL DR.
This API can be called only when job_direction is set to up and the task status is CONFIGURATION.
This API can be called only after the API in Obtaining Database Parameters in Batches is successfully called.
In the dual-active DR scenario, the parent task cannot call the API.

URI

POST /v3/{project_id}/jobs/{job_id}/params

**Table 1** Path parameters
Parameter	Mandatory	Type	Description
job_id	Yes	String	Task ID.
project_id	Yes	String	Project ID of a tenant in a region For details about how to obtain the project ID, see Obtaining a Project ID.

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
Content-Type	Yes	String	The content type. The default value is application/json.
X-Auth-Token	Yes	String	User token obtained from IAM.
X-Language	No	String	Request language type Default value: en-us Values: en-us zh-cn

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
group	Yes	String	Parameter Groups Values: common performance
params	Yes	Array of objects	Information about the parameters to be modified. For details, see Table 4.

**Table 4** Data structure description of field **params**
Parameter	Mandatory	Type	Description
key	Yes	String	Database parameter name.
target_value	Yes	String	Parameter value of the destination database.

Response Parameters

Status code: 202

**Table 5** Response body parameters
Parameter	Type	Description
success	Boolean	Whether the parameters are modified.
should_restart	String	Whether the instance needs to be restarted. Values: true false
error_code	String	Error code.
error_msg	String	Error message.

Example Request

Changing the value of binlog_stmt_cache_size to 32678 and bulk_insert_buffer_size to 8388608

https://{endpoint}/v3/054ba152d480d55b2f5dc0069e7ddef0/jobs/140b5236-88ad-43c8-811c-1268453jb101/params

{
  "group" : "performance",
  "params" : [ {
    "key" : "binlog_stmt_cache_size",
    "target_value" : "32678"
  }, {
    "key" : "bulk_insert_buffer_size",
    "target_value" : "8388608"
  } ]
}

Example Response

Status code: 202

Accepted

{
  "success" : true,
  "should_restart" : "false"
}

Status Code

Status Code	Description
202	Accepted
400	Bad Request

Error Code

For details, see Error Code.

Parent topic: Public API Management

Previous topic: Obtaining Database Parameters in Batches

Next topic: Starting Tasks in Batches

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