Performing a Batch Pre-Check

Function

This API is used to perform batch pre-check to check whether the migration, synchronization, DR can be performed.

Constraints

After a task is created, the task status is CONFIGURATION. The task can be invoked only after the test of connections to the source and destination databases is successful and the API for modifying the task is invoked.
In the dual-active DR scenario, when the forward task status is INCRE_TRANSFER_STARTED, the backward task does not need to call this API, and the parent task cannot call this API.
You can call a maximum of 10 APIs in batches.

URI

POST /v3/{project_id}/jobs/batch-precheck

**Table 1** Path parameters
Parameter	Mandatory	Type	Description
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
jobs	Yes	Array of objects	The list of batch pre-check requests. For details, see Table 4.

**Table 4** Data structure description of field **jobs**
Parameter	Mandatory	Type	Description
job_id	Yes	String	Task ID.
precheck_mode	Yes	String	Pre-check mode. Values: forStartJob: This value is specified when the task is started for the first time during task configuration. forRetryJob: This value is transferred for pre-check after object editing or retry after task failure during incremental task execution. NOTE: Specify the value based on the task status. Otherwise, the pre-check may fail, affecting task startup.

Response Parameters

Status code: 200

**Table 5** Response body parameters
Parameter	Type	Description
results	Array of objects	Pre-check response body. For details, see Table 6.
count	Integer	Total number.

**Table 6** Data structure description of field **results**
Parameter	Type	Description
id	String	Task ID.
precheck_id	String	Pre-check ID.
status	String	Success or failure status. Values: success failed
error_code	String	Error code.
error_msg	String	Error message.

Example Request

Performing a pre-check for a MySQL real-time migration task

https://{endpoint}/v3/054ba152d480d55b2f5dc0069e7ddef0/jobs/batch-precheck

{
  "jobs" : [ {
    "job_id" : "140b5236-88ad-43c8-811c-1268453jb101",
    "precheck_mode" : "forStartJob"
  } ]
}

Example Response

Status code: 200

{
  "results" : [ {
    "id" : "140b5236-88ad-43c8-811c-1268453jb101",
    "status" : "success",
    "precheck_id" : "140b5236-88ad-43c8-811c-1268453jb101"
  } ],
  "count" : 1
}

Status Code

Status Code	Description
200	OK
400	Bad Request

Error Code

For details, see Error Code.

Parent topic: Public API Management

Previous topic: Selecting Database Objects in Batches

Next topic: Querying Pre-check Results in Batches

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