CKafka - Topic Monitoring API

Last updated: 2020-05-15 17:42:31

    1. API Description

    API: GetMonitorData
    Domain name for API request: monitor.tencentcloudapi.com

    This API is used to get the monitoring data of a Tencent Cloud product by passing in the product's namespace, object dimension, and monitoring metrics.

    API call rate limit: 20 calls/second (1,200 calls/minute). A single request can get the data of up to 10 instances and up to 1,440 data points.

    This API may fail due to the rate limit if you need to call many metrics and objects. We recommend spreading call requests across a period of time.

    To query the monitoring data of a CKafka topic, use the following input parameters:
    &Namespace=QCE/CKAFKA
    &Instances.N.Dimensions.0.Name=instanceId
    &Instances.N.Dimensions.0.Value=Instance ID
    &Instances.N.Dimensions.1.Name=topicId
    &Instances.N.Dimensions.1.Value=Topic ID

    2. Input Parameters

    The list below contains only the API request parameters and some common request parameters. Common request parameters need to be added when a call is made. For more information, see Common Params.

    2.1 Input parameters

    2.1.1. Overview of input parameters

    Parameter Name Required Type Description
    Action Yes String Common parameter. Value: GetMonitorData
    Version Yes String Common parameter. Value: 2018-07-24
    Region No String Common parameter, indicating the region of the instance to be queried. For supported regions, see the list of regions supported by Ckafka
    Namespace Yes String Namespace. Each Tencent Cloud product has a namespace, such as QCE/CKAFKA for Ckafka topics. This value must be capitalized for API 3.0
    MetricName Yes String Metric name. For more information, see section 2.2
    Instances.N Yes Array of Instance Combination of instance object dimensions
    Period No Integer Statistical period for monitoring data in seconds. Default value: 300
    StartTime No Timestamp Start time, such as "2016-01-01 10:25:00". The default value is "00:00:00" of the current day
    EndTime No Timestamp End time, which is the current time by default. endTime cannot be earlier than startTime

    2.1.2. Overview of parameters in each dimension

    Parameter Name Dimension Name Dimension Description Format
    Instances.N.Dimensions.0.Name instanceId instanceId Enter a string-type dimension name, such as instanceId
    Instances.N.Dimensions.0.Value instanceId CKafka instance ID Enter a specific instance ID, such as ckafka-test
    Instances.N.Dimensions.1.Name topicId topicId Enter a string-type dimension name, such as topicId
    Instances.N.Dimensions.1.Value topicId Instance topic ID Enter a specific topic ID, such as topic-test

    2.2. Metric name

    The statistical granularity (period) and dimension (dimension) may vary by metric. The DescribeBaseMetrics API can be used to get the period and dimension supported by each metric.

    Metric Name Description Unit Dimension
    CtopicProFlow Production traffic in the topic MB instanceId, topicId
    CtopicConFlow Consumption traffic in the topic MB instanceId, topicId
    CtopicMsgHeap Message heap in the topic MB instanceId, topicId
    CtopicProCount Messages produced by the topic - instanceId, topicId
    CtopicProReqCount Production requests in the topic - instanceId, topicId
    CtopicConReqCount Consumption requests in the topic - instanceId, topicId
    CtopicMsgCount Persistent messages in the topic - instanceId, topicId
    CtopicConCount Messages consumed by the topic - instanceId, topicId

    3. Output Parameters

    Parameter Name Type Description
    MetricName String Monitoring metric
    StartTime Timestamp Data point start time
    EndTime Timestamp Data point end time
    Period Integer Statistical period
    DataPoints Array of PointsObject Monitoring data list
    RequestId String Unique request ID. Each request returns a unique ID. RequestId is required to troubleshoot issues

    4. Error Codes

    Error Code Error Description Error Message
    -502 Resource does not exist OperationDenied.SourceNotExists
    -503 Incorrect request parameter InvalidParameter
    -505 Missing parameter InvalidParameter.MissingParameter
    -507 Limit exceeded OperationDenied.ExceedLimit
    -509 Incorrect dimension combination InvalidParameter.DimensionGroupError
    -513 DB operation failed InternalError.DBoperationFail

    5. Samples

    Sample 1

    This example shows you how to get the monitoring data for the production traffic of one CKafka topic using a statistical period of 60 seconds for a specified length of time.

    Sample input code

    https://monitor.tencentcloudapi.com/?Action=GetMonitorData
    &Namespace=QCE/CKAFKA
    &MetricName=CtopicProFlow
    &Period=60
    &StartTime=2019-05-08T16:40:00+08:00
    &EndTime=2019-05-08T16:45:00+08:00
    &Instances.0.Dimensions.0.Name=instanceId
    &Instances.0.Dimensions.0.Value=ckafka-test
    &Instances.0.Dimensions.1.Name=topicId
    &Instances.0.Dimensions.1.Value=topic-test
    &<Common request parameters>

    Sample output code

    {
      "Response": {
        "StartTime": "2019-05-08 16:40:00",
        "EndTime": "2019-05-08 16:45:00",
        "Period": 60,
        "MetricName": "CtopicProFlow",
        "DataPoints": [
          {
            "Dimensions": [
              {
                "Name": "instanceId",
                "Value": "ckafka-test"
              },
              {
                "Name": "topicId",
                "Value": "topic-test"
              }
            ],
            "Timestamps": [
              1558429200,
              1558429260,
              1558429320,
              1558429380,
              1558429440,
              1558429500
            ],
            "Values": [
              18.213,
              18.219,
              17.911,
              18.243,
              17.916,
              17.939
            ]
          }
        ],
        "RequestId": "68a1ffe1-b314-4da8-8f8c-cdcfcff1d3fd"
      }
    }

    Sample 2

    This example shows you how to get the monitoring data for the production traffic of multiple CKafka topics using a statistical period of 60 seconds for a specified length of time.

    Sample input code

    https://monitor.tencentcloudapi.com/?Action=GetMonitorData
    &Namespace=QCE/CKAFKA
    &MetricName=CtopicProFlow
    &Period=60
    &StartTime=2019-05-08T16:40:00+08:00
    &EndTime=2019-05-08T16:45:00+08:00
    &Instances.0.Dimensions.0.Name=instanceId
    &Instances.0.Dimensions.0.Value=ckafka-test1
    &Instances.0.Dimensions.1.Name=topicId
    &Instances.0.Dimensions.1.Value=topic-test1
    &Instances.1.Dimensions.0.Name=instanceId
    &Instances.1.Dimensions.0.Value=ckafka-test2
    &Instances.1.Dimensions.1.Name=topicId
    &Instances.1.Dimensions.1.Value=topic-test2
    &<Common request parameters>

    Sample output code

    {
      "Response": {
        "StartTime": "2019-05-08 16:40:00",
        "EndTime": "2019-05-08 16:45:00",
        "Period": 60,
        "MetricName": "CtopicProFlow",
        "DataPoints": [
          {
            "Dimensions": [
              {
                "Name": "instanceId",
                "Value": "ckafka-test1"
              },
              {
                "Name": "topicId",
                "Value": "topic-test1"
              }
            ],
            "Timestamps": [
              1558429200,
              1558429260,
              1558429320,
              1558429380,
              1558429440,
              1558429500
            ],
            "Values": [
              18.213,
              18.219,
              17.911,
              18.243,
              17.916,
              17.939
            ]
          },
          {
            "Dimensions": [
              {
                "Name": "instanceId",
                "Value": "ckafka-test2"
              },
              {
                "Name": "topicId",
                "Value": "topic-test2"
              }
            ],
            "Timestamps": [
              1558429200,
              1558429260,
              1558429320,
              1558429380,
              1558429440,
              1558429500
            ],
            "Values": [
              18.213,
              18.219,
              17.911,
              18.243,
              17.916,
              17.939
            ]
          }
        ],
        "RequestId": "68a1ffe1-b314-4da8-8f8c-cdcfcff1d3fd"
      }
    }

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