Call GetTransferableNodes to specify the type and number of nodes to obtain the nodes that can be migrated.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request header

This operation uses common request parameters only. For more information, see Common parameters.

Request syntax

GET /openapi/instances/[InstanceId]/transferable-nodes HTTPS|HTTP

Request parameters

Parameter Type Required Example Description
count Integer Yes 1

The number of nodes to be migrated.
InstanceId String Yes es-cn-nif1q9o8r0008****

The ID of the instance.
nodeType String Yes WORKER

The type of nodes.WORKER represents a hot node, WORKER_WARM represents a warm node.

Response parameters

Parameter Type Example Description
RequestId String F99407AB-2FA9-489E-A259-40CF6DCC****

The ID of the request.
Result Array of Result

The return results.
host String 192.168.**. **

The IP address of the node.
port Integer 9200

The access port of the node.

The Result also contains the following parameters.

Parameter

Type

Example

Description

nodeType

String

WORKER

The type of the node. Valid values: MASTER (dedicated MASTER node), WORKER (hot node), WORKER_WARM (warm node), COORDINATING (client node), and KIBANA(Kibana node).

zoneId

String

cn-hangzhou-b

The ID of the zone to which the node belongs.

Examples

Sample requests

GET /openapi/instances/es-cn-nif1q9o8r0008****/transferable-nodes? nodeType=WORKER&count=1 HTTP/1.1
Common request header

Sample success responses

JSON format 

{
    "Result":[
        {
            "nodeType":"WORKER",
            "host":"192.168. **.**",
            "port":9300,
            "zoneId":"cn-hangzhou-b"
        }
    ],
    "RequestId":"3760F67B-691D-4663-B4E5-6783554F****"
}

Error codes

HttpCode Error code Error message Description
400 InstanceNotFound The instanceId provided does not exist. The error message returned because the specified instance cannot be found. Check the instance status.

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