This API is used to update nodes in batches.

POST /v2/{project_id}/pools/{pool_name}/nodes/batch-update

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details, see Obtaining a Project ID and Name.
pool_name	Yes	String	Resource pool ID. The value is the metadata.name field in the resource pool details.

**Table 2** Request body parameters
Parameter	Mandatory	Type	Description
nodeNames	Yes	Array of strings	List of node names to be updated.
action	Yes	String	Action performed for updating a node. The options are as follows: openHaRedundant: Enable HA redundancy. closeHaRedundant: Disable HA redundancy.

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
successNodeNames	Array of strings	Names of nodes that are successfully updated.
failNodeNames	Array of strings	Names of nodes that fail to be updated.

Status code: 404

**Table 4** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Enable node HA redundancy.

POST /v2/{project_id}/pools/{pool_name}/nodes/batch-update

{
  "nodeNames" : [ "os-node-created-xzz78" ],
  "action" : "openHaRedundant"
}

Status code: 200

OK.

{
  "nodes" : [ {
    "name" : "os-node-created-xzz78",
    "status" : "success"
  } ]
}

Status code: 404

Not found.

{
  "error_code" : "ModelArts.50015001",
  "error_msg" : "pool not found"
}

Status Code	Description
200	OK.
404	Not found.

Updating Nodes in Batches