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Tair (Redis® OSS-Compatible):SwitchInstanceZoneFailOver

Last Updated:Aug 28, 2026

Simulates a zone-level failover for an ApsaraDB for Redis (Tair-compatible) cluster instance, triggering an automatic switchover to the standby zone.

Operation description

  • 本接口仅适用于多(双)可用区集群架构实例。

  • 模拟故障的节点会在稍后自动恢复。但主节点位于备可用区、备节点位于主可用区,此时可能产生实例与其他业务跨机房访问的情况。如需解决该问题,您可以在控制台服务可用性页面手动切换可用区。

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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:SwitchInstanceZoneFailOver

update

*DBInstance

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

None None

Request parameters

Parameter

Type

Required

Description

Example

InstanceId

string

Yes

The instance ID.

r-bp1zxszhcgatnx****

TargetZoneId

string

No

The ID of the destination zone.

cn-hangzhou-j

SiteFaultTime

string

No

The simulated fault duration. Unit: minutes.

Valid values:

  • 5

  • 10

5

Response elements

Element

Type

Description

Example

object

The response parameters.

RequestId

string

The request ID.

2D9F3768-EDA9-4811-943E-42C8006E****

Examples

Success response

JSON format

{
  "RequestId": "2D9F3768-EDA9-4811-943E-42C8006E****"
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.