Function

This API is used to query the node information, number of valid instances, and number of nodes of all instances in a specified project. No node information will be returned when the instance is being created. Available for Redis 4.0 and later instances.

Constraints

Available for Redis 4.0 and later instances.

URI

GET /v2/{project_id}/instances-logical-nodes

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details, see Obtaining a Project ID.

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
offset	No	Integer	Offset, which is the position where the query starts. The value must be greater than or equal to 0.
limit	No	Integer	Number of items displayed on each page. The maximum value is 1000*. If this parameter is not specified, 10 items are displayed on each page by default.

Request Parameters

None

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
count	Integer	Total number of instances in the query result.
instances	Array of InstanceNodesInfoResp objects	Instance list.

**Table 4** InstanceNodesInfoResp
Parameter	Type	Description
instance_id	String	Instance ID.
node_count	Integer	Total number of nodes of the current instance.
nodes	Array of NodesInfoResp objects	Node details.

**Table 5** NodesInfoResp
Parameter	Type	Description
logical_node_id	String	Logical node ID.
name	String	Node name.
status	String	Node status. The value can be: Creating Active: running Inactive: faulty Deleting AddSharding: Shards are being added. Enumeration values: Creating Active Inactive Deleting AddSharding
az_code	String	AZ code.
node_role	String	Node type. Options: redis-server: Redis server node redis-proxy: proxy node Enumeration values: redis-server redis-proxy
node_type	String	Node role. Options: master: master node slave: standby node proxy: node of a Proxy Cluster instance Enumeration values: master slave proxy
node_ip	String	Node IP address.
node_port	String	Node port.
node_id	String	Node ID.
priority_weight	Integer	Replica promotion priority.
is_access	Boolean	Whether the IP address of the node can be directly accessed.
group_id	String	Shard ID.
group_name	String	Shard name.
is_remove_ip	Boolean	Whether the IP address is removed from the read-only domain name.
replication_id	String	Replica ID.
dimensions	Array of InstanceReplicationDimensionsInfo objects	Monitoring metric dimension of the replica used to call the Cloud Eye API for querying monitoring metrics. Replica monitoring is multi-dimensional. The returned array contains information about two dimensions. When querying monitoring data from Cloud Eye, transfer parameters of multiple dimensions to obtain the metric data. The first dimension is the primary dimension of the replica. The dimension name is dcs_instance_id, and the dimension value is the ID of the instance where the replica is located. The name of the second dimension is dcs_cluster_redis_node, and the dimension value is the ID of the monitored object of the replica, which is different from the replica ID or node ID.

**Table 6** InstanceReplicationDimensionsInfo
Parameter	Type	Description
name	String	Monitoring dimension name.
value	String	Dimension value.

Status code: 500

**Table 7** Response body parameters
Parameter	Type	Description
error_msg	String	Error message. Maximum: 1024
error_code	String	Error code. Maximum: 9
error_ext_msg	String	Extended error information. This parameter is not used currently and is set to null. Maximum: 1024

Status code: 400

**Table 8** Response body parameters
Parameter	Type	Description
error_msg	String	Error message. Maximum: 1024
error_code	String	Error code. Maximum: 9
error_ext_msg	String	Extended error information. This parameter is not used currently and is set to null. Maximum: 1024

Example Requests

GET https://{dcs_endpoint}/v2/{project_id}/instances-logical-nodes?offset={offset}&limit={limit}

Example Responses

Status code: 200

Node information queried successfully.

{
  "count" : 1,
  "instances" : [ {
    "instance_id" : "b4468cb1-4f75-4866-a49d-86959acc0c9c",
    "node_count" : 2,
    "nodes" : [ {
      "logical_node_id" : "8f997eb512a92834bf5914be52ca8919",
      "name" : "(replica)192.168.0.178",
      "status" : "Active",
      "az_code" : "region01",
      "node_role" : "redis-server",
      "node_type" : "slave",
      "node_ip" : "192.168.0.178",
      "node_port" : "6379",
      "node_id" : "8a2c26c17f4d6516017f4d7b77940030",
      "is_access" : true,
      "group_id" : "ace962d1-7841-4e50-9313-c239fd75dee3",
      "group_name" : "group-0",
      "priority_weight" : 100,
      "is_remove_ip" : false,
      "replication_id" : "e40aa09e-03c2-4319-86eb-5ef4ca637544",
      "dimensions" : [ {
        "name" : "dcs_instance_id",
        "value" : "caf2d19f-7783-44b0-be46-8c9da3ef1e94"
      }, {
        "name" : "dcs_cluster_redis_node",
        "value" : "8263dc69629c5b2d840e9816fa9c6200"
      } ]
    } ]
  } ]
}

Status code: 500

Internal service error.

{
  "error_code" : "DCS.5000",
  "error_msg" : "Internal service error."
}

Status code: 400

Invalid request.

{
  "error_code" : "DCS.4800",
  "error_msg" : "Invalid offset in the request."
}

Status Codes

Status Code	Description
200	Node information queried successfully.
500	Internal service error.
400	Invalid request.

Error Codes

See Error Codes.

Querying Instance Nodes in Batches