Help Center/ Cloud Eye/ API Reference/ API V1/ Monitoring Data/ Querying Monitoring Data of Multiple Metrics
Updated on 2024-04-22 GMT+08:00

Querying Monitoring Data of Multiple Metrics

Function

You can query the monitoring data of specified metrics within a specified time range and at a specified granularity. You can query the monitoring data of up to 500 metrics in one batch.

Debugging

You can debug the API in API Explorer which supports automatic authentication. API Explorer can automatically generate and debug example SDK code.

URI

POST /V1.0/{project_id}/batch-query-metric-data

  • Parameter description
    Table 1 Parameter description

    Parameter

    Mandatory

    Description

    project_id

    Yes

    Specifies the project ID.

    For details about how to obtain the project ID, see Obtaining a Project ID.

Request

  1. The size of a POST request cannot exceed 512 KB. Otherwise, the request will be denied.
  2. The default maximum query interval (tofrom) varies depending on period and the number of metrics to be queried. The rule is as follows: Number of metrics x (to - from)/Monitoring interval ≤ 3000.
    • If period is 1, the monitoring interval is 60,000 ms (60 x 1000).
    • If period is 300, the monitoring interval is 300,000 ms (300 x 1000).
    • If period is 1200, the monitoring interval is 1,200,000 ms (1200 x 1000).
    • If period is 3600, the monitoring interval is 3,600,000 ms (3600 x 1000).
    • If period is 14400, the monitoring interval is 14,400,000 ms (14400 x 1000).
    • If period is 86400, the monitoring interval is 86,400,000 ms (86400 x 1000).

    For example, if 300 metrics are queried in batches and the monitoring interval is 60,000 ms, the maximum value of (to-from) is 600000. If (to-from) exceeds 600,000, from is automatically changed to to-600000.

  • Request parameters
    Table 2 Request parameters

    Parameter

    Mandatory

    Type

    Description

    metrics

    Yes

    Array of objects

    Specifies the metric data. The maximum length of the array is 500.

    For details, see Table 3.

    from

    Yes

    Long

    Specifies the start time of the query. The time is a UNIX timestamp and the unit is ms. Set from to at least one period earlier than the current time. Rollup aggregates the raw data generated within a period to the start time of the period. If from and to are within a period, the query result will be empty due to the rollup failure. Set from to at least one period earlier than the current time. Take the 5-minute period as an example. If it is 10:35 now, the raw data generated between 10:30 and 10:35 will be aggregated to 10:30. In this example, if period is 5 minutes, from should be 10:30.

    NOTE:

    Cloud Eye rounds up from based on the level of granularity required to perform the rollup.

    to

    Yes

    Long

    Specifies the end time of the query. The time is a UNIX timestamp and the unit is ms. from must be earlier than to.

    period

    Yes

    String

    Specifies how often Cloud Eye aggregates data, which can be

    • 1: Cloud Eye performs no aggregation and displays raw data.
    • 300: Cloud Eye aggregates data every 5 minutes.
    • 1200: Cloud Eye aggregates data every 20 minutes.
    • 3600: Cloud Eye aggregates data every hour.
    • 14400: Cloud Eye aggregates data every 4 hours.
    • 86400: Cloud Eye aggregates data every 24 hours.

    filter

    Yes

    String

    Specifies the data rollup method, which can be

    • average: Cloud Eye calculates the average value of metric data within a rollup period.
    • max: Cloud Eye calculates the maximum value of metric data within a rollup period.
    • min: Cloud Eye calculates the minimum value of metric data within a rollup period.
    • sum: Cloud Eye calculates the sum of metric data within a rollup period.
    • variance: Cloud Eye calculates the variance value of metric data within a rollup period.

    filter does not affect the query result of raw data. (The period is 1.)

    Table 3 metrics data structure description

    Parameter

    Mandatory

    Type

    Description

    namespace

    Yes

    String

    Specifies the metric namespace, which must be in the service.item format and contain 3 to 32 characters.

    service and item each must start with a letter and contain only letters, digits, and underscores (_).

    dimensions

    Yes

    Array of objects

    Specifies metric dimensions. dimensions is an array consisting of a maximum of four JSON objects.

    One dimension is a JSON object, and its structure is as follows:

    {

    "name": "instance_id",

    "value": "33328f02-3814-422e-b688-bfdba93d4050"

    }

    For details, see Table 4.

    metric_name

    Yes

    String

    Specifies the metric name. Start with a letter. Enter 1 to 64 characters. Only letters, digits, and underscores (_) are allowed.

    Table 4 dimensions data structure description

    Parameter

    Mandatory

    Type

    Description

    name

    Yes

    String

    Specifies the dimension. For example, the ECS dimension is instance_id. For details about the dimension of each service, see the key column in Services Interconnected with Cloud Eye.

    Start with a letter. Enter 1 to 32 characters. Only letters, digits, underscores (_), and hyphens (-) are allowed.

    value

    Yes

    String

    Specifies the dimension value, for example, an ECS ID.

    Start with a letter or a digit. Enter 1 to 256 characters. Only letters, digits, underscores (_), and hyphens (-) are allowed.

    • dimensions can be obtained from the response body by calling the API for Querying Metrics.
    • OBS metric data can be queried only when the related OBS APIs are called.
  • Example request
    Request example 1: View the average cpu_util of the ECS whose instance_id is faea5b75-e390-4e2b-8733-9226a9026070 and the average network_vm_connections of the ECS whose instance_id is 06b4020f-461a-4a52-84da-53fa71c2f42b. The monitoring data was collected from 20:00:00 to 22:00:00 on April 30, 2019.
    {
        "metrics": [
           {
                "namespace": "SYS.ECS",
                "dimensions": [
                    {
                        "name": "instance_id",
                        "value": "faea5b75-e390-4e2b-8733-9226a9026070"
                    }
                ],
                "metric_name": "cpu_util"
            },
            {
                "namespace": "SYS.ECS",
                "dimensions": [
                    {
                        "name": "instance_id",
                        "value": "06b4020f-461a-4a52-84da-53fa71c2f42b"
                    }
                ],
                "metric_name": "network_vm_connections"
            }
        ],
        "from": 1556625600000,
        "to": 1556632800000,
        "period": "1",
        "filter": "average"
    }
    
    Request example 2: View the sums of rds021_myisam_buf_usage of the RDS instance whose rds_cluster_id is 3c8cc15614ab46f5b8743317555e0de2in01 and the RDS instance whose rds_cluster_id is 3b2fa8b55a9b4adca3713962a9d31884in01. The monitoring data was collected from 20:00:00 to 22:00:00 on April 30, 2019.
    {
        "metrics": [
            {
                "namespace": "SYS.RDS",
                "dimensions": [
                    {
                        "name": "rds_cluster_id",
                        "value": "3c8cc15614ab46f5b8743317555e0de2in01"
                    }
                ],
                "metric_name": "rds021_myisam_buf_usage"
            },
            {
                "namespace": "SYS.RDS",
                "dimensions": [
                    {
                        "name": "rds_cluster_id",
                        "value": "3b2fa8b55a9b4adca3713962a9d31884in01"
                    }
                ],
                "metric_name": "rds021_myisam_buf_usage"
            }
        ],
        "from": 1556625600000,
        "to": 1556632800000,
        "period": "1",
        "filter": "sum"
    }
    Example request 3: View the minimum proc_specified_count of the server whose instance_id is cd841102-f6b1-407d-a31f-235db796dcbb and proc is b28354b543375bfa94dabaeda722927f. The monitoring data is collected from 20:00:00 to 22:00:00 on April 30, 2019 and the rollup period is 20 minutes.
    {
        "metrics": [
            {
                "namespace": "AGT.ECS",
                "dimensions": [
                    {
                        "name": "instance_id",
                        "value": "cd841102-f6b1-407d-a31f-235db796dcbb"
                    },
                    {
                        "name": "proc",
                        "value": "b28354b543375bfa94dabaeda722927"
                    }
                ],
                "metric_name": "proc_specified_count"
            }
        ],
        "from": 1556625600000,
        "to": 1556632800000,
        "period": "1200",
        "filter": "min"
    }

Response

  • Response parameters
    Table 5 Response parameters

    Parameter

    Type

    Description

    metrics

    Array of objects

    Specifies the metric data.

    For details, see Table 6.

    Table 6 metrics data structure description

    Parameter

    Type

    Description

    unit

    String

    Specifies the metric unit.

    datapoints

    Array of objects

    Specifies the metric data list. Cloud Eye rounds up the value of from based on the selected granularity for data query, so datapoints may contain more data points than expected. Up to 3,000 data points can be returned.

    For details, see Table 8.

    namespace

    String

    Specifies the metric namespace, which must be in the service.item format and contain 3 to 32 characters. service and item each must start with a letter and contain only letters, digits, and underscores (_).

    dimensions

    Array of objects

    Specifies the list of metric dimensions.

    Each dimension is a JSON object, and its structure is as follows:

    {

    "name": "instance_id",

    "value": "33328f02-3814-422e-b688-bfdba93d4050"

    }

    For details, see Table 7.

    metric_name

    String

    Specifies the metric name. Start with a letter. Enter 1 to 64 characters. Only letters, digits, and underscores (_) are allowed.

    Table 7 dimensions data structure description

    Parameter

    Type

    Description

    name

    String

    Specifies the dimension. For example, the ECS dimension is instance_id. For details about the dimension of each service, see the key column in Services Interconnected with Cloud Eye.

    Start with a letter. Enter 1 to 32 characters. Only letters, digits, underscores (_), and hyphens (-) are allowed.

    value

    String

    Specifies the dimension value, for example, an ECS ID.

    Start with a letter or a digit. Enter 1 to 256 characters. Only letters, digits, underscores (_), and hyphens (-) are allowed.

    Table 8 datapoints data structure description

    Parameter

    Type

    Description

    average

    Double

    Specifies the average value of metric data within a rollup period.

    max

    Double

    Specifies the maximum value of metric data within a rollup period.

    min

    Double

    Specifies the minimum value of metric data within a rollup period.

    sum

    Double

    Specifies the sum of metric data within a rollup period.

    variance

    Double

    Specifies the variance of metric data within a rollup period.

    timestamp

    Long

    Specifies when the metric is collected. It is a UNIX timestamp in milliseconds.

  • Example response
    Example response 1: The average cpu_util of the ECS whose instance_id is faea5b75-e390-4e2b-8733-9226a9026070 and the average network_vm_connections of the ECS whose instance_id is 06b4020f-461a-4a52-84da-53fa71c2f42b are displayed.
    {
        "metrics": [
            {
                "namespace": "SYS.ECS",
                "metric_name": "cpu_util",
                "dimensions": [
                    {
                        "name": "instance_id",
                        "value": "faea5b75-e390-4e2b-8733-9226a9026070"
                    }
                ],
                "datapoints": [
                    {
                        "average": 0.69,
                        "timestamp": 1556625610000
                    },
                    {
                        "average": 0.7,
                        "timestamp": 1556625715000
                    }
                ],
                "unit": "%"
            },
            {
                "namespace": "SYS.ECS",
                "metric_name": "network_vm_connections",
                "dimensions": [
                    {
                        "name": "instance_id",
                        "value": "06b4020f-461a-4a52-84da-53fa71c2f42b"
                    }
                ],
                "datapoints": [
                    {
                        "average": 1,
                        "timestamp": 1556625612000
                    },
                    {
                        "average": 3,
                        "timestamp": 1556625717000
                    }
                ],
                "unit": "count"
            }
        ]
    }
    Response example 2: The rds021_myisam_buf_usage sums of the RDS instance whose rds_cluster_id are 3c8cc15614ab46f5b8743317555e0de2in01 is displayed, and those of the RDS instance whose rds_cluster_id is 3b2fa8b55a9b4adca3713962a9d31884in01 are displayed.
    {
        "metrics": [
            {
                "unit": "Ratio",
                "datapoints": [
                    {
                        "sum": 0.07,
                        "timestamp": 1556625628000
                    },
                    {
                        "sum": 0.07,
                        "timestamp": 1556625688000
                    }
                ],
                "namespace": "SYS.RDS",
                "dimensions": [
                    {
                        "name": "rds_cluster_id",
                        "value": "3c8cc15614ab46f5b8743317555e0de2in01"
                    }
                ],
                "metric_name": "rds021_myisam_buf_usage"
            },
            {
                "unit": "Ratio",
                "datapoints": [
                    {
                        "sum": 0.06,
                        "timestamp": 1556625614000
                    },
                    {
                        "sum": 0.07,
                        "timestamp": 1556625674000
                    }
                ],
                "namespace": "SYS.RDS",
                "dimensions": [
                    {
                        "name": "rds_cluster_id",
                        "value": "3b2fa8b55a9b4adca3713962a9d31884in01"
                    }
                ],
                "metric_name": "rds021_myisam_buf_usage"
            }
        ]
    }
    Response example 3: The minimum rds021_myisam_buf_usage of the server whose instance_id is cd841102-f6b1-407d-a31f-235db796dcbb and proc is b28354b543375bfa94dabaeda722927f is displayed.
    {
        "metrics": [
            {
                "unit": "Ratio",
                "datapoints": [
                    {
                        "min": 0,
                        "timestamp": 1556625612000
                    },
                    {
                        "min": 0,
                        "timestamp": 1556625672000
                    }
                ],
                "namespace": "AGT.ECS",
                "dimensions": [
                    {
                        "name": "instance_id",
                        "value": "cd841102-f6b1-407d-a31f-235db796dcbb"
                    },
                    {
                        "name": "proc",
                        "value": "b28354b543375bfa94dabaeda722927f"
                    }
                ],
                "metric_name": "rds021_myisam_buf_usage"
            }
        ]
    }

Returned Values

  • Normal

    200

  • Abnormal

    Returned Value

    Description

    400 Bad Request

    Request error.

    401 Unauthorized

    The authentication information is not provided or is incorrect.

    403 Forbidden

    Access to the requested page is forbidden.

    408 Request Timeout

    The request timed out.

    429 Too Many Requests

    Concurrent requests are excessive.

    500 Internal Server Error

    Failed to complete the request because of an internal service error.

    503 Service Unavailable

    The service is currently unavailable.

Error Codes

See Error Codes.