DescribeAvailableMetrics - ApsaraDB RDS - Alibaba Cloud Documentation Center

Queries all Enhanced Monitoring metrics that are supported by 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

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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
rds:DescribeAvailableMetrics	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 available for the instance.	4
RequestId	string	The ID of the request.	5CD61041-35F7-10F7-BE94-33A48B221218
Items	array<object>	Details of the Enhanced Monitoring metric.
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
MetricsKeyAlias	string	The alias of the Enhanced Monitoring metric.	cpu_sys_per_core
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
DBInstanceName	string	The instance ID.	rm-bp1*****

Examples

Sample success responses

JSONformat

{
  "TotalRecordCount": 4,
  "RequestId": "5CD61041-35F7-10F7-BE94-33A48B221218",
  "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",
      "MetricsKeyAlias": "cpu_sys_per_core",
      "Method": "avg",
      "Dimension": "os"
    }
  ],
  "DBInstanceName": "rm-bp1*****"
}

Error codes

HTTP status code	Error code	Error message	Description
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
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