ModifySearcherReplica - OpenSearch - Alibaba Cloud Documentation Center

Operation description

Request description

This API lets you modify the number of replicas or shards for data nodes in a specific instance. When you make a request, provide the instance ID. In the request body, specify the number of replicas (replica) or shards (partition). These parameters are optional, but you must specify at least one of them to update the instance.

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

searchengine:ModifySearcherReplica

update

*Instance

acs:searchengine:{#regionId}:{#accountId}:instance/{#InstanceId}

None

Request syntax

PUT /openapi/ha3/instances/{instanceId}/replica HTTP/1.1

Request parameters

Parameter	Type	Required	Description	Example
instanceId	string	Yes	The instance ID.	ha-cn-test
body	object	No	The request body.
replica	integer	No	The number of replicas for a data node.	2
partition	integer	No	The number of shards for a data node.	2

Response elements

Element	Type	Description	Example
	object	Schema of Response
requestId	string	The request ID.	e1eef569-1ff7-4bf8-acf7-1cecca9894ce
result	object	The result of the operation. This object is empty in the current version.

Examples

Success response

JSON format

{
  "requestId": "e1eef569-1ff7-4bf8-acf7-1cecca9894ce",
  "result": {
    "test": "test",
    "test2": 1
  }
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.