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Tair (Redis® OSS-Compatible):AddShardingNode

Last Updated:Aug 28, 2026

Adds one or more data shards to a Tair cluster instance.

Operation description

Available only for cluster instances that use cloud disks.

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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

kvstore:AddShardingNode

create

*DBInstance

acs:kvstore:{#regionId}:{#accountId}:instance/{#instanceId}

None None

Request parameters

Parameter

Type

Required

Description

Example

InstanceId

string

Yes

The instance ID.

r-bp1zxszhcgatnx****

ShardCount

integer

No

The number of data shards to add. Default: 1.

Note

Supports 2 to 256 data shards per instance, up to 64 per request.

2

AutoPay

boolean

No

Enables automatic payment. Valid values:

  • true: Enables automatic payment. Ensure sufficient account balance.

  • false: Disables automatic payment. Pay manually before expiration (Instance renewal).

Note

Default: true.

false

CouponNo

string

No

The coupon ID.

youhuiquan_promotion_option_id_for_blank

BusinessInfo

string

No

Additional business information.

000000000

SourceBiz

string

No

Internal use only.

SDK

ForceTrans

boolean

No

Whether to force the configuration change. Valid values:

  • false (default): Checks the minor version before the change. Returns an error if outdated. Update the minor version and retry.

  • true: Skips the version check and forces the configuration change.

false

VSwitchId

string

No

The vSwitch ID for new shards. Must be in the same VPC. Defaults to the original vSwitch.

vsw-bp1e7clcw529l773d****

Response elements

Element

Type

Description

Example

object

RequestId

string

The request ID.

B79C1A90-495B-4E99-A2AA-A4DB13B8****

OrderId

integer

The order ID.

20741011111111

NodeIds

array

The data shard IDs.

string

The data shard ID.

r-8vb0i6z4npbxrf****-db-4

Examples

Success response

JSON format

{
  "RequestId": "B79C1A90-495B-4E99-A2AA-A4DB13B8****",
  "OrderId": 20741011111111,
  "NodeIds": [
    "r-8vb0i6z4npbxrf****-db-4"
  ]
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.