DescribeDBInstancePerformance - ApsaraDB RDS - Alibaba Cloud Documentation Center

Queries the performance metrics of an instance.

Operation description

Supported database engines

MySQL
PostgreSQL
SQL Server
MariaDB

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

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:DescribeDBInstancePerformance	READ	DBInstance acs:rds:{#regionId}:{#accountId}:dbinstance/{#dbinstanceId}	rds:ResourceTag	none

Request parameters

Parameter	Type	Required	Description	Example
DBInstanceId	string	Yes	The instance ID. You can call the DescribeDBInstances operation to query the instance ID.	rm-uf6wjk5xxxxxxx
Key	string	Yes	The performance metrics that you want to query. Separate multiple values with commas (,). You can specify up to 30 values. For more information, see Performance parameters. Note If you set Key to MySQL_SpaceUsage or SQLServer_SpaceUsage, you can query the monitoring data within only one day.	MySQL_Sessions
StartTime	string	Yes	The beginning of the time range to query. Specify the time in the ISO 8601 standard in the yyyy-MM-ddTHH:mmZ format. The time must be in UTC. Note The time span between the beginning time and the end time must be longer than the monitoring frequency. Otherwise, this operation may return an empty array.	2012-06-08T15:00Z
EndTime	string	Yes	The end of the time range to query. Specify the time in the ISO 8601 standard in the yyyy-MM-ddTHH:mmZ format. The time must be in UTC. Note The time span between the beginning time and the end time must be longer than the monitoring frequency. Otherwise, this operation may return an empty array.	2012-06-18T15:00Z
NodeId	string	No	The ID of the instance.	339****

Response parameters

Parameter	Type	Description	Example
	object	The response parameters.
EndTime	string	The end time of the query. Specify the time in the ISO 8601 standard in the yyyy-MM-ddTHH:mmZ format. The time must be in UTC.	2012-06-19T15:00Z
StartTime	string	The start time of the query. Specify the time in the ISO 8601 standard in the yyyy-MM-ddTHH:mmZ format. The time must be in UTC.	2012-06-10T15:00Z
DBInstanceId	string	The instance ID.	rm-uf6wjk5xxxxxxxxxx
Engine	string	The database engine of the instance.	MySQL
RequestId	string	The request ID.	A5409D02-D661-4BF3-8F3D-0A814D0574E7
PerformanceKeys	object []	Details of the performance metrics.
Key	string	The name of the performance metric.	MySQL_Sessions
ValueFormat	string	The format in which the value of the performance metric is returned. Note If a performance metric value consists of multiple fields, the values are separated with ampersands (&). Example: com_delete&com_insert&com_insert_select&com_replace.	recv_k&sent_k
Unit	string	The unit of the performance metrics.	KB
Values	object []	The performance metric values.
Date	string	The date and time when the value of the performance metric was recorded. The time follows the ISO 8601 standard in the yyyy-MM-ddTHH:mm:ssZ format. The time is displayed in UTC.	2011-05-30T03:29:00Z
Value	string	The value of the performance metric.	0.0&13.6

Examples

Sample success responses

JSONformat

{
  "EndTime": "2012-06-19T15:00Z",
  "StartTime": "2012-06-10T15:00Z",
  "DBInstanceId": "rm-uf6wjk5xxxxxxxxxx",
  "Engine": "MySQL",
  "RequestId": "A5409D02-D661-4BF3-8F3D-0A814D0574E7",
  "PerformanceKeys": {
    "PerformanceKey": [
      {
        "Key": "MySQL_Sessions",
        "ValueFormat": "recv_k&sent_k",
        "Unit": "KB",
        "Values": {
          "PerformanceValue": [
            {
              "Date": "2011-05-30T03:29:00Z",
              "Value": "0.0&13.6"
            }
          ]
        }
      }
    ]
  }
}

Error codes

HTTP status code	Error code	Error message	Description
400	Order.ComboInstanceNotAllowOperate	A package instance is not allowed to operate independently.	A package instance is not allowed to operate independently.
400	Price.PricingPlanResultNotFound	Pricing plan price result not found.	Pricing plan price result not found.
400	Order.NoRealNameAuthentication	You have not passed the real-name authentication and do not meet the purchase conditions. Please log in to the user center for real-name authentication.	You have not passed the real-name authentication and do not meet the purchase conditions. Please log in to the user center for real-name authentication.

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

Change history

Change time	Summary of changes	Operation

No change history