Changes the instances added to an application group.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes ModifyMonitorGroupInstances

The operation that you want to perform. Set the value to ModifyMonitorGroupInstances.

GroupId Long Yes 12345

The ID of the application group.

Instances.N.Category String Yes ECS

The abbreviation of the name of the service to which the instances to be added to the application group belong. Valid values:

  • ECS: Elastic Compute Service (ECS) instances provided by Alibaba Cloud and hosts not provided by Alibaba Cloud
  • RDS: ApsaraDB for RDS
  • ADS: AnalyticDB
  • SLB: Server Load Balancer (SLB)
  • VPC: Virtual Private Cloud (VPC)
  • CDN: Alibaba Cloud Content Delivery Network (CDN)
  • CS: Container Service for Swarm
  • DCDN: Dynamic Route for CDN
  • DDoS: Anti-DDoS Pro
  • EIP: Elastic IP Address (EIP)
  • ELASTICSEARCH: Elasticsearch
  • EMR: E-MapReduce
  • ESS: Auto Scaling
  • HBASE: ApsaraDB for Hbase
  • IOT_EDGE: IoT Edge
  • K8S_POD: pods in Container Service for Kubernetes
  • KVSTORE_SHARDING: ApsaraDB for Redis of the cluster architecture
  • KVSTORE_SPLITRW: ApsaraDB for Redis of the read/write splitting architecture
  • KVSTORE_STANDARD: ApsaraDB for Redis of the standard architecture
  • MEMCACHE: ApsaraDB for Memcache
  • MNS: Message Service (MNS)
  • MONGODB: ApsaraDB for MongoDB of the replica set architecture
  • MONGODB_CLUSTER: ApsaraDB for MongoDB of the cluster architecture
  • MONGODB_SHARDING: ApsaraDB for MongoDB of the sharded cluster architecture
  • MQ_TOPIC: MNS topics
  • OCS: ApsaraDB for Memcache of earlier versions
  • OPENSEARCH: Open Search
  • OSS: Object Storage Service (OSS)
  • POLARDB: PolarDB
  • PETADATA: HybridDB for MySQL
  • SCDN: Secure Content Delivery Network (SCDN)
  • SLS: Log Service
  • VPN: VPN Gateway

    Valid values of N: 1 to 2000.

Instances.N.InstanceId String Yes i-a2d5q7pm12****

The ID of the instance. Valid values of N: 1 to 2000.

Instances.N.InstanceName String Yes HostName

The name of the instance. Valid values of N: 1 to 2000.

Instances.N.RegionId String Yes cn-hangzhou

The ID of the region where the instance resides. Valid values of N: 1 to 2000.

Response parameters

Parameter Type Example Description
Code Integer 200

The HTTP status code.

Note The status code 200 indicates that the call was successful.
Message String success

The returned message.

RequestId String FEC7EDB3-9B08-4AC0-A42A-329F5D14B95A

The ID of the request.

Success Boolean true

Indicates whether the call was successful. The value true indicates a success. The value false indicates a failure.


Sample requests

http(s)://[Endpoint]/? Action=ModifyMonitorGroupInstances
&<Common request parameters>

Sample success responses

XML format


JSON format

  "RequestId": "02977C39-9E74-430A-B35B-04CFBF0E7F64",
  "Success": true,
  "Code": 200

Error codes

For a list of error codes, visit the API Error Center.