Queries the latest monitoring data of a metric.

Note For information about how to specify the Namespace, Project, Metric, Period, and Dimensions parameters for cloud services, see DescribeMetricMetaList or Metrics.

Debugging

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 DescribeMetricLast

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

MetricName String Yes CPUUtilization

The name of the metric.

Namespace String Yes acs_ecs_dashboard

The namespace of the cloud service. Specify the value in the format of acs_Service name.

Period String No 60

The statistical period of the metric. Unit: seconds.

Note If this parameter is not specified in the alert rule, raw data is queried at the interval at which the metric data is reported. If this parameter is specified in the alert rule, metric data is queried at the specified interval.
StartTime String No 2019-01-31 10:00:00

The beginning of the time range to query.

Note To avoid unpredictable results, we recommend that you do not use this parameter.
EndTime String No 2019-01-31 10:10:00

The end of the time range to query.

  • For second-level data, the start time is obtained by comparing the time that is specified by the startTime parameter and 20 minutes earlier of the time that is specified by the EndTime parameter. The earlier one of the preceding time points is used as the start time.
  • For minute-level data, the start time is obtained by comparing the time that is specified by the startTime parameter and 2 hours earlier of the time that is specified by the EndTime parameter. The earlier one of the preceding time points is used as the start time.
  • For hour-level data, the start time is obtained by comparing the time that is specified by the startTime parameter and two days earlier of the time that is specified by the EndTime parameter. The earlier one of the preceding time points is used as the start time.
Dimensions String No [{"instanceId":"i-abcdefgh12****"}]

The dimensions. This parameter is used to specify the resources that you want to query.

Set the value to a collection of key-value pairs. A typical example is instanceId:i-2ze2d6j5uhg20x47****.

Note Dimensions must be formatted as a JSON string in a specified order.
NextToken String No 15761432850009dd70bb64cff1f0fff6c0b08ffff073be5fb1e785e2b020f7fed9b5e137bd810a6d6cff5ae****

The paging token.

  • If the number of results exceeds the maximum number of entries on a single page, a paging token is returned.
  • This token can be used as an input parameter to retrieve the next page of results. If all results are retrieved, no token is returned.
Length String No 1000

The number of entries to return on each page.

Default value: 1000. This value indicates that 1,000 entries of metric data are returned on each page.

Express String No {"groupby":["userId","instanceId"]}

The expression that is used to compute the query results in real time.

Response parameters

Parameter Type Example Description
RequestId String 021472A6-25E3-4094-8D00-BA4B6A5486C3

The ID of the request.

Code String 200

The HTTP status code.

Note The value 200 indicates that the call was successful.
Success Boolean true

Indicates whether the call was successful. Valid values:

  • true: The call was successful.
  • false: The call failed.
Period String 60

The time interval at which metric data was queried. Unit: seconds.

NextToken String xxxxxx

The paging token.

Datapoints String [{"timestamp":1548777660000,"userId":"123456789876****","instanceId":"i-abcdefgh12****","Minimum":9.92,"Average":9.92,"Maximum":9.92}]

The monitoring data.

Message String The Request is not authorization.

The returned message.

Examples

Sample request

http(s)://[Endpoint]/? Action=DescribeMetricLast
&MetricName=CPUUtilization
&Namespace=acs_ecs_dashboard
&<Common request parameters>

Sample success responses

XML format

<QueryMetricListResponse>
    <Period>60</Period>
    <Datapoints>
        <Datapoints>
            <timestamp>1490152860000</timestamp>
            <Maximum>100</Maximum>
            <userId> 123456789876****</userId>
            <Minimum>93.1</Minimum>
            <instanceId>i-abcdefgh12****</instanceId>
            <Average>99.52</Average>
        </Datapoints>
        <Datapoints>
            <timestamp>1490152920000</timestamp>
            <Maximum>100</Maximum>
            <userId> 123456789876**** </userId>
            <Minimum>92.59</Minimum>
            <instanceId>i-abcdefgh12****</instanceId>
            <Average>99.49</Average>
        </Datapoints>
        <Datapoints>
            <timestamp>1490152980000</timestamp>
            <Maximum>100</Maximum>
            <userId>123456789876****</userId>
            <Minimum>92.86</Minimum>
            <instanceId>i-abcdefgh12****</instanceId>
            <Average>99.44</Average>
        </Datapoints>
        <Datapoints>
            <timestamp>1490153040000</timestamp>
            <Maximum>100</Maximum>
            <userId>123456789876****</userId>
            <Minimum>91.43</Minimum>
            <instanceId>i-abcdefgh12****</instanceId>
            <Average>99.36</Average>
        </Datapoints>
        <Datapoints>
            <timestamp>1490153100000</timestamp>
            <Maximum>100</Maximum>
            <userId>123456789876****</userId>
            <Minimum>93.55</Minimum>
            <instanceId>i-abcdefgh12****</instanceId>
            <Average>99.51</Average>
        </Datapoints>
        <Datapoints>
            <timestamp>1490153160000</timestamp>
            <Maximum>100</Maximum>
            <userId>123456789876****</userId>
            <Minimum>93.1</Minimum>
            <instanceId>i-abcdefgh12****</instanceId>
            <Average>99.52</Average>
        </Datapoints>
        <Datapoints>
            <timestamp>1490153220000</timestamp>
            <Maximum>100</Maximum>
            <userId>123456789876****</userId>
            <Minimum>92.59</Minimum>
            <instanceId>i-abcdefgh12****</instanceId>
            <Average>99.42</Average>
        </Datapoints>
        <Datapoints>
            <timestamp>1490153280000</timestamp>
            <Maximum>100</Maximum>
            <userId>123456789876****</userId>
            <Minimum>91.18</Minimum>
            <instanceId>i-abcdefgh12****</instanceId>
            <Average>99.34</Average>
        </Datapoints>
        <Datapoints>
            <timestamp>1490153340000</timestamp>
            <Maximum>100</Maximum>
            <userId>123456789876****</userId>
            <Minimum>92.86</Minimum>
            <instanceId>i-abcdefgh12****</instanceId>
            <Average>99.46</Average>
        </Datapoints>
        <Datapoints>
            <timestamp>1490153400000</timestamp>
            <Maximum>100</Maximum>
            <userId>123456789876****</userId>
            <Minimum>91.18</Minimum>
            <instanceId>i-abcdefgh12****</instanceId>
            <Average>99.35</Average>
        </Datapoints>
    </Datapoints>
    <RequestId>6661EC50-8625-4161-B349-E0DD59002AB7</RequestId>
    <Success>true</Success>
    <Code>200</Code>
</QueryMetricListResponse>

JSON format

{
    "Period": "60",
    "Datapoints": [
        {
            "timestamp": 1490152860000,
            "Maximum": 100,
            "userId": "123456789876****",
            "Minimum": 93.1,
            "instanceId": "i-abcdefgh12****",
            "Average": 99.52
        },
        {
            "timestamp": 1490152920000,
            "Maximum": 100,
            "userId": "123456789876****",
            "Minimum": 92.59,
            "instanceId": "i-abcdefgh12****",
            "Average": 99.49
        },
        {
            "timestamp": 1490152980000,
            "Maximum": 100,
            "userId": "123456789876****",
            "Minimum": 92.86,
            "instanceId": "i-abcdefgh12****",
            "Average": 99.44
        },
        {
            "timestamp": 1490153040000,
            "Maximum": 100,
            "userId": "123456789876****",
            "Minimum": 91.43,
            "instanceId": "i-abcdefgh12****",
            "Average": 99.36
        },
        {
            "timestamp": 1490153100000,
            "Maximum": 100,
            "userId": "123456789876****",
            "Minimum": 93.55,
            "instanceId": "i-abcdefgh12****",
            "Average": 99.51
        },
        {
            "timestamp": 1490153160000,
            "Maximum": 100,
            "userId": "123456789876****",
            "Minimum": 93.1,
            "instanceId": "i-abcdefgh12****",
            "Average": 99.52
        },
        {
            "timestamp": 1490153220000,
            "Maximum": 100,
            "userId": "123456789876****",
            "Minimum": 92.59,
            "instanceId": "i-abcdefgh12****",
            "Average": 99.42
        },
        {
            "timestamp": 1490153280000,
            "Maximum": 100,
            "userId": "123456789876****",
            "Minimum": 91.18,
            "instanceId": "i-abcdefgh12****",
            "Average": 99.34
        },
        {
            "timestamp": 1490153340000,
            "Maximum": 100,
            "userId": "123456789876****",
            "Minimum": 92.86,
            "instanceId": "i-abcdefgh12****",
            "Average": 99.46
        },
        {
            "timestamp": 1490153400000,
            "Maximum": 100,
            "userId": "123456789876****",
            "Minimum": 91.18,
            "instanceId": "i-abcdefgh12****",
            "Average": 99.35
        }
    ],
    "RequestId": "6A5F022D-AC7C-460E-94AE-B9E75083D027",
    "Success": true,
    "Code": "200"
}

Error codes

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