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ApsaraDB for MongoDB:DescribeDBInstances

Last Updated:Sep 23, 2026

Queries a list of MongoDB instances.

Operation description

By default, this operation queries the list of replica set instances (including single-node instances). If the request parameter DBInstanceType is not specified, the default value of this parameter is replicate. To query the list of sharded cluster instances, set DBInstanceType to sharding.

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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

dds:DescribeDBInstances

get

*Instance

acs:dds:{#regionId}:{#accountId}:dbinstance/*

*Instance

acs:dds:{#regionId}:{#accountId}:dbinstance/{#dbinstanceId}

None None

Request parameters

Parameter

Type

Required

Description

Example

RegionId

string

No

The region ID. You can call the DescribeRegions operation to query the region ID.

cn-hangzhou

PageNumber

integer

No

The page number. The value must be a positive integer that does not exceed the maximum value of the Integer data type. Default value: 1.

1

PageSize

integer

No

The number of entries per page. Valid values:

  • 30 (default)

  • 50

  • 100

Valid values:

  • 30 :

    30 entries per page.

  • 50 :

    50 entries per page.

  • 100 :

    100 entries per page.

30

DBInstanceId

string

No

The instance ID.

dds-bp199659b178****

ReplicationFactor

string

No

The number of nodes in the replica set instance. Valid values:

  • 3

  • 5

  • 7

3

DBInstanceDescription

string

No

The instance name. The name must meet the following requirements:

  • It must start with a Chinese character or a letter.

  • It can contain digits, Chinese characters, letters, underscores (_), and hyphens (-).

  • It must be 2 to 256 characters in length.

TestDatabase

ExpireTime

string

No

The expiration time of the instance in the yyyy-MM-ddTHH:mm:ssZ format (UTC). This parameter is used to filter instances whose expiration time is earlier than or equal to the specified time.

2019-12-26T16:00:00Z

DBInstanceStatus

string

No

The instance status. For more details about valid values, see Instance status table.

Running

DBInstanceType

string

No

The instance type. Valid values:

  • sharding: sharded cluster instance.

  • replicate: default value. Replica set instance or single-node instance.

sharding

DBInstanceClass

string

No

The instance specification. For more information about valid values, see Instance specifications.

dds.mongo.mid

Engine

string

No

The database engine. Set the value to MongoDB.

Valid values:

  • MongoDB :

    MongoDB database engine.

MongoDB

EngineVersion

string

No

The database engine version. Valid values:

  • 7.0

  • 6.0

  • 5.0

  • 4.4

  • 4.2

  • 4.0

  • 3.4

4.0

NetworkType

string

No

The network type of the instance. Valid values:

  • Classic: classic network.

  • VPC: VPC.

VPC

VpcId

string

No

The VPC ID.

vpc-bp1n3i15v90el48nx****

VSwitchId

string

No

The vSwitch ID of the VPC.

vsw-bp1vj604nj5a9zz74****

ChargeType

string

No

The billing method of the instance. Valid values:

  • PrePaid: subscription.

  • PostPaid: pay-as-you-go.

PrePaid

ZoneId

string

No

The zone ID. You can call the DescribeRegions operation to query the zone ID.

cn-hangzhou-b

Expired

string

No

The expiration status of the instance. Valid values:

  • true: expired.

  • false: not expired.

true

ConnectionDomain

string

No

The endpoint of the node. You can call the DescribeDBInstanceAttribute operation to query the endpoint.

dds-bp1ea17b41abecf43****.mongodb.rds.aliyuncs.com

ResourceGroupId

string

No

The resource group ID.

rg-acfmyiu4ekp****

Tag

array<object>

No

The tags.

object

No

Key

string

No

The tag key of the instance. Valid values of N: 1 to 20.

  • The tag key cannot start with aliyun, acs:, http://, or https://.

  • The tag key can be up to 64 characters in length.

  • The tag key cannot be an empty string.

testdatabase

Value

string

No

The tag value of the instance. Valid values of N: 1 to 20.

  • The tag value cannot start with aliyun, acs:, http://, or https://.

  • The tag value can be up to 128 characters in length.

  • The tag value can be an empty string.

apitest

DBNodeType

string

No

Specifies whether to filter standard or test instances.

  1. Single-node instances and DBFS instances: customized

  2. Standard instances (replica set and sharded cluster): standard

  3. Default (displays all instances): default

default

Response elements

Element

Type

Description

Example

object

TotalCount

integer

The number of instances in the query result.

5

RequestId

string

The request ID.

0E4FE33F-5510-5758-8FA7-A6672CDE****

PageSize

integer

The number of records per page.

30

PageNumber

integer

The page number.

1

DBInstances

object

DBInstance

array<object>

The list of instance information.

array<object>

CreationTime

string

The time when the instance was created. The time is in the yyyy-MM-ddTHH:mm:ssZ format (UTC).

2021-03-25T02:18:00Z

ChargeType

string

The billing method of the instance. Valid values:

  • PrePaid: subscription.

  • PostPaid: pay-as-you-go.

PrePaid

Tags

object

Tag

array<object>

The list of resource tags.

object

The list of resource tags.

Key

string

The tag key of the resource.

test

Value

string

The tag value of the resource.

api

VpcAuthMode

string

Indicates whether password-free access over VPC is enabled. Valid values:

  • Open: enabled.

  • Close: disabled.

Close

NetworkType

string

The network type of the instance. Valid values:

  • Classic: classic network.

  • VPC: VPC.

Classic

LockMode

string

The lock status of the instance. Valid values:

  • Unlock: The instance is not locked.

  • ManualLock: The instance is manually locked.

  • LockByExpiration: The instance is automatically locked because it has expired.

  • LockByRestoration: The instance is automatically locked before a rollback.

  • LockByDiskQuota: The instance is automatically locked because the storage is full.

  • Released: The instance is released. In this case, the instance cannot be unlocked. You can only use backup data to create a new instance. The rebuild process takes a long time.

Unlock

EngineVersion

string

The database engine version. Valid values:

  • 7.0

  • 6.0

  • 5.0

  • 4.4

  • 4.2

  • 4.0

  • 3.4

4.2

MongosList

object

MongosAttribute

array<object>

The list of mongos node information.

Note

This parameter is returned when the instance type is a sharded cluster instance.

object

The list of mongos node information.

Note

This parameter is returned when the instance type is a sharded cluster instance.

NodeClass

string

The node specifications of the mongos node.

dds.mongos.standard

NodeDescription

string

The description of the mongos node.

Test mongos node

NodeId

string

The ID of the mongos node.

s-bp10e3b0d02f****

DBInstanceDescription

string

The description or remarks of the instance.

TestDatabase

ExpireTime

string

The time when the instance expires. The time is in the yyyy-MM-ddTHH:mmZ format (UTC).

2021-11-25T16:00Z

DBInstanceType

string

The instance type. Valid values:

  • sharding: sharded cluster instance.

  • replicate: replica set instance or standalone instance.

sharding

LastDowngradeTime

string

The last time when the instance was downgraded. The time is in the YYYY-MM-DD format.

2021-05-08

ShardList

object

ShardAttribute

array<object>

The list of shard node information.

Note

This parameter is returned when the instance type is a sharded cluster instance.

object

The list of shard node information.

Note

This parameter is returned when the instance type is a sharded cluster instance.

NodeClass

string

The instance type of the shard node.

dds.shard.mid

NodeDescription

string

The description of the shard node.

Test shard node

NodeStorage

integer

The storage capacity of the shard node. Unit: GB.

10

NodeId

string

The ID of the shard node.

d-bp1cac6f2083****

ReadonlyReplicas

integer

The number of read-only nodes in the shard node. Valid values: 0 to 5.

2

DestroyTime

string

The data destruction time of the instance. The time is in the yyyy-MM-ddTHH:mm:ssZ format (UTC).

Note
  • For subscription instances, compute resources are released on the 16th day after the instance expires, and data is retained for 7 more days. On the 23rd day after the instance expires, data is deleted and cannot be recovered.

  • For pay-as-you-go instances, compute resources are released on the 16th day after the instance has an overdue payment, and data is retained for 7 more days. On the 23rd day after the overdue payment, data is deleted and cannot be recovered.

2021-12-10T16:00:00Z

DBInstanceStatus

string

The instance status. For details, see Instance status table.

Running

RegionId

string

The region ID of the instance.

cn-hangzhou

DBInstanceStorage

integer

The instance storage capacity.

20

ResourceGroupId

string

The resource group ID.

rg-acfmyiu4ekp****

ZoneId

string

The zone ID of the instance.

cn-hangzhou-g

DBInstanceId

string

The instance ID.

dds-bp18b0934e70****

DBInstanceClass

string

The instance type.

dds.mongo.mid

Engine

string

The database engine.

MongoDB

ReplicationFactor

string

The number of nodes in the instance.

Note

This parameter is returned when the instance type is a replica set instance.

3

KindCode

string

The type of the instance. Valid values:

  • 0: physical machine.

  • 1: ECS.

  • 2: DOCKER.

  • 18: Kubernetes-based new architecture instance.

1

CapacityUnit

string

The read/write throughput consumed by the instance.

Note

This parameter is returned when the instance type is a serverless instance.

100

StorageType

string

The storage type. Valid values:

  • cloud_essd: ESSD cloud disk.

  • local_ssd: local standard SSD.

local_ssd

BackupRetentionPolicy

integer

The backup data retention policy. Valid values:

  • 0: All backup sets are immediately deleted when the instance is released.

  • 1: An automatic backup is performed when the instance is released, and the backup set is retained for long-term retention (LTR).

  • 2: An automatic backup is performed when the instance is released, and all backup sets of the cluster are retained for long-term retention (LTR).

1

ReleaseTime

string

The time when the instance is released. The time is in the YYYY-MM-DDTHH:mmZ format (UTC).

2024-06-17T07:01Z

Examples

Success response

JSON format

{
  "TotalCount": 5,
  "RequestId": "0E4FE33F-5510-5758-8FA7-A6672CDE****",
  "PageSize": 30,
  "PageNumber": 1,
  "DBInstances": {
    "DBInstance": [
      {
        "CreationTime": "2021-03-25T02:18:00Z",
        "ChargeType": "PrePaid",
        "Tags": {
          "Tag": [
            {
              "Key": "test",
              "Value": "api"
            }
          ]
        },
        "VpcAuthMode": "Close",
        "NetworkType": "Classic",
        "LockMode": "Unlock",
        "EngineVersion": "4.2",
        "MongosList": {
          "MongosAttribute": [
            {
              "NodeClass": "dds.mongos.standard",
              "NodeDescription": "测试mongos节点",
              "NodeId": "s-bp10e3b0d02f****"
            }
          ]
        },
        "DBInstanceDescription": "测试数据库",
        "ExpireTime": "2021-11-25T16:00Z",
        "DBInstanceType": "sharding",
        "LastDowngradeTime": "2021-05-08",
        "ShardList": {
          "ShardAttribute": [
            {
              "NodeClass": "dds.shard.mid",
              "NodeDescription": "测试shard节点",
              "NodeStorage": 10,
              "NodeId": "d-bp1cac6f2083****",
              "ReadonlyReplicas": 2
            }
          ]
        },
        "DestroyTime": "2021-12-10T16:00:00Z",
        "DBInstanceStatus": "Running",
        "RegionId": "cn-hangzhou",
        "DBInstanceStorage": 20,
        "ResourceGroupId": "rg-acfmyiu4ekp****",
        "ZoneId": "cn-hangzhou-g",
        "DBInstanceId": "dds-bp18b0934e70****",
        "DBInstanceClass": "dds.mongo.mid",
        "Engine": "MongoDB",
        "ReplicationFactor": "3",
        "KindCode": "1",
        "CapacityUnit": "100",
        "StorageType": "local_ssd",
        "BackupRetentionPolicy": 1,
        "ReleaseTime": "2024-06-17T07:01Z"
      }
    ]
  }
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.