DescribeClusterMemberInfo - - Alibaba Cloud Documentation Center

Queries the configuration information of nodes in a Tair (Redis OSS-compatible) cluster instance, such as the specifications and the maximum number of connections.

Operation description

Note This API operation is applicable only to ApsaraDB for Redis instances that use cloud disks and the cluster architecture.

Debugging

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Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
kvstore:DescribeClusterMemberInfo	get	All Resources ``	none	none

Request parameters

Parameter	Type	Required	Description	Example
InstanceId	string	Yes	The ID of the ApsaraDB for Redis instance. You can call the DescribeInstances operation to query instance IDs.	r-bp1zxszhcgatnx****
PageNumber	integer	No	The page number.	1
PageSize	integer	No	The number of entries to return on each page. Valid values: 30, 50, and 100. Default value: 30.	30

Response parameters

Parameter	Type	Description	Example
	object
RequestId	string	The ID of the request.	2D9F3768-EDA9-4811-943E-42C8006E****
ClusterChildren	array<object>	Details of nodes in the cluster instance.
Children	object
Capacity	long	The maximum memory capacity per data node. Unit: MB. Note This parameter is returned only if the return value of Service is redis, which indicates a data node.	1024
UserId	string	The ID of the user.	2**_176498472570**
DiskSizeMB	integer	The storage capacity of the enhanced SSD (ESSD) that is used by the data node. Unit: MB. Note The ESSD is used only to store system operating data, such as Persistent Memory (PMEM). It is not used as a medium to write and read data.	4096
BandWidth	long	The maximum bandwidth of the node. Unit: MB/s. Note This parameter is returned only if the return value of Service is redis, which indicates a data node.	96
CurrentBandWidth	long	The current bandwidth of the node, which consists of the default bandwidth and the increased bandwidth. Unit: MB/s. Note This parameter is returned only if the instance is created in a dedicated cluster.	100
ClassCode	string	The specifications of the data node. For more information, see Community Edition instances that use cloud disks.	redis.shard.small.ce
BizType	string	The type of workload. The return value is ALIYUN.	ALIYUN
Service	string	The node type. Valid values: redis: data node redis_cs: config server	redis
BinlogRetentionDays	integer	The retention period of binlogs.	7
Connections	long	The maximum number of connections supported by the data node.	20000
ResourceGroupName	string	The name of the resource group to which the node belongs.	GLOBAL_ZHANGJIAKOU_A
ServiceVersion	string	The major version of the node.	5.0
ReplicaSize	integer	The number of replica nodes.	0
Name	string	The name of the data node.	r-bp1zxszhcgatnx****-db-0
Id	long	The ID of the replica set in the node.	501791111

Examples

Sample success responses

JSONformat

{
  "RequestId": "2D9F3768-EDA9-4811-943E-42C8006E****",
  "ClusterChildren": [
    {
      "Capacity": 1024,
      "UserId": "2****_176498472570****",
      "DiskSizeMB": 4096,
      "BandWidth": 96,
      "CurrentBandWidth": 100,
      "ClassCode": "redis.shard.small.ce",
      "BizType": "ALIYUN",
      "Service": "redis",
      "BinlogRetentionDays": 7,
      "Connections": 20000,
      "ResourceGroupName": "GLOBAL_ZHANGJIAKOU_A",
      "ServiceVersion": "5.0",
      "ReplicaSize": 0,
      "Name": "r-bp1zxszhcgatnx****-db-0",
      "Id": 501791111
    }
  ]
}

Error codes

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2023-07-06	The request parameters of the API has changed	View Change Details