Restarting a DB Instance

API Description

This API is used to restart a DB instance.

The DDS DB instance will be unavailable during the restart process. Exercise caution when performing this operation.

Restrictions

If the instance status is not normal, the instance cannot be restarted.

URI

URI format
POST https://{Endpoint}/v3/{project_id}/instances/{instance_id}/restart
URI example
https://dds.ap-southeast-1.myhuaweicloud.com/v3/0549b4a43100d4f32f51c01c2fe4acdb/instances/9136fd2a9fcd405ea4674276ce36dae8in02/restart

**Table 1** Request parameters
Name	Type	IN	Mandatory	Description
X-Auth-Token	string	header	Yes	User token obtained from IAM. For details, see Authentication.
project_id	string	path	Yes	Project ID of a tenant in a region. To obtain the project ID, see Obtaining a Project ID.
instance_id	string	path	Yes	Instance ID, which can be obtained by calling the API described in Querying Instances and Details. If you do not have an instance, call the API described in Creating a DB Instance to create one.

Requests

Parameter description

**Table 2** Parameter description
Name	Type	Mandatory	Description
target_type	String	No	The type of the object to restart. This parameter is mandatory when you restart one or more nodes of a cluster instance. Set the value to mongos if mongos nodes are restarted. Set the value to shard if shard nodes are restarted. Set the value to config if config nodes are restarted. This parameter is not specified when a DB instance (cluster, replica set, or single node) is restarted. Enumerated values: mongos shard config
target_id	String	Yes	The ID of the object to be restarted, which can be obtained by calling the API for querying instances. If you do not have an instance, you can call the API used for creating an instance. When you restart a node in a cluster instance, the value is the mongos node ID for a mongos node, and shard or config group ID for a shard or config group. When you restart the entire DB instance, the value is the DB instance ID. When you restart a replica set instance, the value is the DB instance ID. When you restart a single node instance, the value is the DB instance ID.

Example Request

Restarting a DB instance based on the value of target_id

{
	"target_id":"9136fd2a9fcd405ea4674276ce36dae8in02"
}

Restarting a shard group based on the values of target_type and target_id

{
       "target_type":"shard",
       "target_id":"84e7c96b82aa4fedb3b00f98edd71ba4gr02"
}

Restarting a config group based on the values of target_type and target_id

{
      "target_type":"config",
      "target_id":"06439baa35c146d3a8965af59d370908gr02"
}

Restarting a mongos node based on the values of target_type and target_id

{
      "target_type":"mongos",
      "target_id":"bd4dccbd53ae48d5bd3046bebf715079no02"
}

Responses

Parameter description

**Table 3** Parameter description
Name	Type	Mandatory	Description
job_id	String	Yes	The workflow ID.

Response example

{ 
    "job_id": "3711e2ad-5787-49bc-a47f-3f0b066af9f5" 
}

SDK

Click Document Database Service DDS SDK to download the SDK or view the SDK document. To learn how to install and authenticate an SDK, read the Usage section.