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ApsaraDB RDS:DescribeDBInstanceMetrics

Last Updated:Aug 27, 2026

Queries the Enhanced Monitoring metrics that are displayed for an ApsaraDB RDS for PostgreSQL instance.

Operation description

Supported database engines

  • PostgreSQL

References

Note Before you call this operation, carefully read the following documentation. Make sure that you fully understand the prerequisites and impacts for calling this operation.

View the Enhanced Monitoring metrics

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

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:
    • For mandatory resource types, indicate with a prefix of * .
    • 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
rds:DescribeDBInstanceMetrics get
*DBInstance
acs:rds:{#regionId}:{#accountId}:dbinstance/{#dbinstanceId}
  • rds:ResourceTag
none

Request parameters

Parameter Type Required Description Example
DBInstanceName string Yes

The instance ID. You can call the DescribeDBInstances operation to query the instance ID.

pgm-bp1s1j103lo6****
ResourceGroupId string No

The resource group ID.

rg-acfmy*****

Response parameters

Parameter Type Description Example
object

The response parameters.

TotalRecordCount integer

The total number of enhanced monitoring metrics that are enabled for the instance.

1
RequestId string

The ID of the request.

318C3754-F6D0-54BB-A55C-23EAA04708B7
Items array<object>

An array consisting of the Enhanced Monitoring metrics that are enabled for the instance.

Metrics object
GroupKey string

The key of the group to which the enhanced monitoring metric belongs.

os.cpu_usage
SortRule integer

The serial number of the enhanced monitoring metric.

1
Description string

The description of the enhanced monitoring metric.

OS CPU utilization, equal to the number of OS-consumed CPUs divided by the total number of CPUs
Unit string

The unit of the enhanced monitoring metric.

%
MetricsKey string

The key of the enhanced monitoring metric.

os.cpu_usage.sys.avg
GroupKeyType string

The name of the group to which the enhanced monitoring metric belongs.

CPU Utilization Rate
Method string

The method that is used to aggregate the monitoring data of the enhanced monitoring metric. Valid values:

  • avg: The system calculates the average value of the enhanced monitoring metric.
  • min: The system calculates the minimum value of the enhanced monitoring metric.
  • max: The system calculates the maximum value of the enhanced monitoring metric.
avg
Dimension string

The category of the enhanced monitoring metric. Valid values:

  • os: OS metric
  • db: database metric
os
MetricsKeyAlias string

The alias of the enhanced monitoring metric.

os.cpu_usage.sys
DBInstanceName string

The instance ID.

rm-bp1*****

Examples

Sample success responses

JSONformat

{
  "TotalRecordCount": 1,
  "RequestId": "318C3754-F6D0-54BB-A55C-23EAA04708B7",
  "Items": [
    {
      "GroupKey": "os.cpu_usage",
      "SortRule": 1,
      "Description": "OS CPU utilization, equal to the number of OS-consumed CPUs divided by the total number of CPUs\n",
      "Unit": "%",
      "MetricsKey": "os.cpu_usage.sys.avg",
      "GroupKeyType": "CPU Utilization Rate\n",
      "Method": "avg",
      "Dimension": "os",
      "MetricsKeyAlias": "os.cpu_usage.sys"
    }
  ],
  "DBInstanceName": "rm-bp1*****"
}

Error codes

HTTP status code Error code Error message Description
400 InvalidInstanceMetricsConfigs.NotFound The specified instance has no metrics configs The specified instance does not have performance metric configurations.
400 InvalidDBInstanceEngineType.Format the DB instance engine type does not support this operation. This operation is not supported for the database engine of the instance.
404 InvalidDBInstanceName.NotFound The database instance does not exist. The name of the RDS instance cannot be found. Check the name of the RDS instance.

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

Change history

Change time Summary of changes Operation
2024-11-18 API Description Update. The Error code has changed View Change Details
2022-08-04 The Error code has changed. The request parameters of the API has changed. The response structure of the API has changed View Change Details