Checks whether specific nodes can be removed from a specified Elasticsearch cluster.

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 headers

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

Request syntax

POST /openapi/instances/{InstanceId}/validate-shrink-nodes HTTP/1.1

Request parameters

Parameter Type Position Required Example Description
InstanceId String Path Yes es-cn-nif1q9o8r0008****

The ID of the instance.

nodeType String Query Yes WORKER

The type of the node to be scaled in. Valid values:

  • WORKER: hot node
  • WORKER_WARM: warm node
ignoreStatus Boolean Query No false

Whether to ignore the cluster health status:

  • true: Ignore
  • false (default): does not ignore
count Integer Query No 2

The number of nodes.

Array Body No

The body of the request.

nodeType String Body No WORKER

The type of the nodes. Valid values:

  • WORKER: hot node
  • WORKER_WARM: warm node
host String Body No 192.168.xx.xx

The IP address of the node.

port Integer Body No 9200

The access port number of the node.

zoneId String Body No cn-shanghai-c

The ID of the zone where the instance node resides. For example, Shanghai Zone C is cn-shanghai-c.

hostName String Body No es-cn-pl32xxxxxxx-data-f-1

cloud-native the node name of the ACK cluster. You can call the ListAllNode operation to obtain the node name.

Response parameters

Parameter Type Example Description
Result Boolean true

Returned results:

  • true: can be scaled in
  • false: cannot be scaled in.
RequestId String F99407AB-2FA9-489E-A259-40CF6DCC****

The ID of the request.

Examples

Sample requests

POST /openapi/instances/es-cn-nif1q9o8r0008****/validate-shrink-nodes?nodeType=WORKER&ignoreStatus=false&count=2 HTTP/1.1
Host:elasticsearch.aliyuncs.com
Content-Type:application/json

[ {
  "nodeType" : "WORKER",
  "host" : "192.168.xx.xx",
  "port" : 9200,
  "zoneId" : "cn-shanghai-c",
  "hostName" : "es-cn-pl32xxxxxxx-data-f-1"
} ]

Sample success responses

JSON format 

HTTP/1.1 200 OK
Content-Type:application/json

{
  "Result" : true,
  "RequestId" : "3760F67B-691D-4663-B4E5-6783554F****"
}

Error codes

For a list of error codes, see Service error codes.