Query performance metrics

You can obtain the performance of an instance over a specific time range based on its performance metrics. Performance metrics are generated by using one of the following methods based on the database engine and version, RDS edition, monitoring frequency (ModifyDBInstanceMonitor), and query time range:

• For instances that do not run MySQL on RDS High-availability Edition with standard SSDs or enhanced SSDs (ESSDs) and those that do not run MariaDB TX:
  • 5-second monitoring frequency
    • If the query time range is greater than 7 days, performance metrics are collected at 1-day intervals.
    • If the query time range is greater than 1 day but less than or equal to 7 days, performance metrics are collected at 1-hour intervals.
    • If the query time range is greater than or equal to 1 hour but less than or equal to 1 day, performance metrics are collected at 1-minute intervals.
    • If the query time range is less than 1 hour, performance metrics are collected at 5-second intervals.
  • 60-second monitoring frequency
    • If the query time range is greater than 30 days, performance metrics are collected at 1-day intervals.
    • If the query time range is greater than 7 days but less than or equal to 30 days, performance metrics are collected at 1-hour intervals.
    • If the query time range is less than or equal to 7 days, performance metrics are collected at 1-minute intervals.
  • 300-second monitoring frequency
    • If the query time range is greater than 30 days, performance metrics are collected at 1-day intervals.
    • If the query time range is greater than 7 days but less than or equal to 30 days, performance metrics are collected at 1-hour intervals.
    • If the query time range is less than or equal to 7 days, performance metrics are collected at 5-minute intervals.
• For instances that are running MySQL on RDS High-availability Edition with standard SSDs or ESSDs and those that are running MariaDB TX:
  • If the query time range is greater than 30 days, performance metrics are collected at 1-day intervals.
  • If the query time range is greater than 7 days but less than or equal to 30 days, performance metrics are collected at 1-hour intervals.
  • If the query time range is less than or equal to 7 days, performance metrics are collected at 1-minute intervals.
• For instances that run PostgreSQL with local SSDs, standard SSDs, or ESSDs:
  • If the query time range is less than or equal to 1 hour, performance metrics are collected at 5-second intervals.
  • If the query time range is less than or equal to 2 hours, performance metrics are collected at 10-second intervals.
  • If the query time range is less than or equal to 6 hours, performance metrics are collected at 30-second intervals.
  • If the query time range is less than or equal to 12 hours, performance metrics are collected at 1-minute intervals.
  • If the query time range is less than or equal to 1 day, performance metrics are collected at 2-minute intervals.
  • If the query time range is less than or equal to 5 days, performance metrics are collected at 10-minute intervals.
  • If the query time range is less than or equal to 15 days, performance metrics are collected at 30-minute intervals.
  • If the query time range is less than or equal to 30 days, performance metrics are collected at 1-hour intervals.

Request parameters

Response parameters

Examples

Sample requests

http(s)://rds.aliyuncs.com/?Action=DescribeDBInstancePerformance
&DBInstanceId= rm-uf6wjk5xxxxxxx
&Key=MySQL_Sessions
&StartTime=2012-06-08T15:00Z
&EndTime=2012-06-18T15:00Z
&<Common request parameters>

Sample success responses

XML format

<DescribeDBInstancePerformanceResponse>
      <RequestId>A5409D02-D661-4BF3-8F3D-0A814D0574E7</RequestId>
      <DBInstanceID> rm-uf6wjk5xxxxxxx</DBInstanceID>
      <StartTime>2012-06-11T15:00Z</StartTime>
      <EndTime>2013-10-17T15:00Z</EndTime>
      <Engine>MySQL</Engine>
      <PerformanceKeys>
            <PerformanceKey>
                  <Key>MySQL_NetworkTraffic</Key>
                  <Unit>KB</Unit>
                  <ValueFormat>recv_k&amp;sent_k</ValueFormat>
                  <Values></Values>
            </PerformanceKey>
      </PerformanceKeys>
</DescribeDBInstancePerformanceResponse>

JSON format

{
    "RequestId": "A5409D02-D661-4BF3-8F3D-0A814D0574E7",
    "DBInstanceID": " rm-uf6wjk5xxxxxxx",
    "StartTime": "2012-06-11T15:00Z",
    "EndTime": "2013-10-17T15:00Z",
    "Engine": "MySQL",
    "PerformanceKeys": {
        "PerformanceKey": [
            {
                "Key": "MySQL_NetworkTraffic",
                "Unit": "KB",
                "ValueFormat": "recv_k&sent_k",
                "Values": {
                    "PerformanceValue": []
                }
            }
        ]
    }
}

Error codes

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