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Querying Metrics

Function

This API is used to query the metrics that can be monitored in the system. You can query specific metrics by specifying a namespace, metric name, dimension, and resource ID (format: resType_resId). You can also specify the start position and the maximum number of returned records for a pagination query.

Calling Method

For details, see Calling APIs.

URI

POST /v1/{project_id}/ams/metrics

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID obtained from IAM. Generally, a project ID contains 32 characters.

Table 2 Query Parameters

Parameter

Mandatory

Type

Description

type

No

String

Metric query mode.

limit

No

String

Maximum number of returned records. Value range: 1–1000. Default value: 1000.

start

No

String

Start position of a pagination query. The value is a non-negative integer.

Request Parameters

Table 3 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

User token obtained from IAM.

Content-Type

Yes

String

Content type, which is application/json.

Table 4 Request body parameters

Parameter

Mandatory

Type

Description

inventoryId

No

String

Resource ID, which must be in the format of resType_resId. Enumerated values of resType: host, application, instance, container, process, network, storage, and volume.When type (a URI parameter) is inventory, this parameter instead of metricItems is used for associated metric queries.

metricItems

No

Array of QueryMetricItemOptionParam objects

If the value of type in the URI is not inventory, metrics are queried based on the information carried by metricItems.

Table 5 QueryMetricItemOptionParam

Parameter

Mandatory

Type

Description

dimensions

No

Array of Dimension objects

List of metric dimensions.

metricName

No

String

Metric name. Length: 1 to 255 characters.

Value range: cpuUsage, cpuCoreUsed, and other basic metrics provided by AOM.

cpuUsage: CPU usage.

cpuCoreUsed: used CPU cores.

Custom metrics.

namespace

Yes

String

Metric namespace.

Values:

PAAS.CONTAINER: namespace of component, instance, process, and container metrics.

PAAS.NODE: namespace of host, network, disk, and file system metrics.

PAAS.SLA: namespace of SLA metrics.

PAAS.AGGR: namespace of cluster metrics.

CUSTOMMETRICS: default namespace of custom metrics.

Table 6 Dimension

Parameter

Mandatory

Type

Description

name

Yes

String

Dimension name.

value

Yes

String

Dimension value.

Response Parameters

Status code: 200

Table 7 Response body parameters

Parameter

Type

Description

metaData

MetaDataSeries object

Metadata, including pagination information.

metrics

Array of MetricItemResultAPI objects

Metric list.

Table 8 MetaDataSeries

Parameter

Type

Description

count

Integer

Number of returned records.

offset

Integer

Start of the next page, which is used for pagination. null: No more data.

total

Integer

Total number of records.

nextToken

Integer

Offset.

Table 9 MetricItemResultAPI

Parameter

Type

Description

dimensions

Array of Dimension objects

List of metric dimensions.

dimensionvaluehash

String

Metric hash value.

metricName

String

Metric name.

namespace

String

Namespace.

unit

String

Metric unit.

Table 10 Dimension

Parameter

Type

Description

name

String

Dimension name.

value

String

Dimension value.

Example Requests

  • Query metrics by inventory ID.
    https://{Endpoint}/v1/{project_id}/ams/metrics
    
    {
      "metricItems" : [ {
        "namespace" : "PAAS.CONTAINER",
        "dimensions" : [ {
          "name" : "appName",
          "value" : "aomApp"
        }, {
          "name" : "clusterName",
          "value" : "aomCluster"
        } ]
      } ]
    }
  • Query metrics by namespace, appName, and clusterName.
    https://{Endpoint}/v1/{project_id}/ams/metrics?type=inventory
    
    {
      "inventoryId" : "application_xxxxxxxx-xxxx-xxxx-xxxx-xxxxx3fee10"
    }

Example Responses

Status code: 200

OK: The request is successful.

{
  "errorCode" : "SVCSTG_AMS_2000000",
  "errorMessage" : "success",
  "metaData" : {
    "count" : 1,
    "offset" : 1,
    "nextToken" : null,
    "total" : 1
  },
  "metrics" : [ {
    "namespace" : "PAAS.CONTAINER",
    "metricName" : "aom_process_cpu_usage",
    "unit" : "Percent",
    "dimensions" : [ {
      "name" : "appName",
      "value" : "aomApp"
    } ]
  } ]
}

SDK Sample Code

The SDK sample code is as follows.

Java

  • Query metrics by inventory ID.
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    package com.huaweicloud.sdk.test;
    
    import com.huaweicloud.sdk.core.auth.ICredential;
    import com.huaweicloud.sdk.core.auth.BasicCredentials;
    import com.huaweicloud.sdk.core.exception.ConnectionException;
    import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
    import com.huaweicloud.sdk.core.exception.ServiceResponseException;
    import com.huaweicloud.sdk.aom.v2.region.AomRegion;
    import com.huaweicloud.sdk.aom.v2.*;
    import com.huaweicloud.sdk.aom.v2.model.*;
    
    import java.util.List;
    import java.util.ArrayList;
    
    public class ListMetricItemsSolution {
    
        public static void main(String[] args) {
            // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
            // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
            String ak = System.getenv("CLOUD_SDK_AK");
            String sk = System.getenv("CLOUD_SDK_SK");
            String projectId = "{project_id}";
    
            ICredential auth = new BasicCredentials()
                    .withProjectId(projectId)
                    .withAk(ak)
                    .withSk(sk);
    
            AomClient client = AomClient.newBuilder()
                    .withCredential(auth)
                    .withRegion(AomRegion.valueOf("<YOUR REGION>"))
                    .build();
            ListMetricItemsRequest request = new ListMetricItemsRequest();
            MetricAPIQueryItemParam body = new MetricAPIQueryItemParam();
            List<Dimension> listMetricItemsDimensions = new ArrayList<>();
            listMetricItemsDimensions.add(
                new Dimension()
                    .withName("appName")
                    .withValue("aomApp")
            );
            listMetricItemsDimensions.add(
                new Dimension()
                    .withName("clusterName")
                    .withValue("aomCluster")
            );
            List<QueryMetricItemOptionParam> listbodyMetricItems = new ArrayList<>();
            listbodyMetricItems.add(
                new QueryMetricItemOptionParam()
                    .withDimensions(listMetricItemsDimensions)
                    .withNamespace(QueryMetricItemOptionParam.NamespaceEnum.fromValue("PAAS.CONTAINER"))
            );
            body.withMetricItems(listbodyMetricItems);
            request.withBody(body);
            try {
                ListMetricItemsResponse response = client.listMetricItems(request);
                System.out.println(response.toString());
            } catch (ConnectionException e) {
                e.printStackTrace();
            } catch (RequestTimeoutException e) {
                e.printStackTrace();
            } catch (ServiceResponseException e) {
                e.printStackTrace();
                System.out.println(e.getHttpStatusCode());
                System.out.println(e.getRequestId());
                System.out.println(e.getErrorCode());
                System.out.println(e.getErrorMsg());
            }
        }
    }
    
  • Query metrics by namespace, appName, and clusterName.
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    package com.huaweicloud.sdk.test;
    
    import com.huaweicloud.sdk.core.auth.ICredential;
    import com.huaweicloud.sdk.core.auth.BasicCredentials;
    import com.huaweicloud.sdk.core.exception.ConnectionException;
    import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
    import com.huaweicloud.sdk.core.exception.ServiceResponseException;
    import com.huaweicloud.sdk.aom.v2.region.AomRegion;
    import com.huaweicloud.sdk.aom.v2.*;
    import com.huaweicloud.sdk.aom.v2.model.*;
    
    
    public class ListMetricItemsSolution {
    
        public static void main(String[] args) {
            // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
            // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
            String ak = System.getenv("CLOUD_SDK_AK");
            String sk = System.getenv("CLOUD_SDK_SK");
            String projectId = "{project_id}";
    
            ICredential auth = new BasicCredentials()
                    .withProjectId(projectId)
                    .withAk(ak)
                    .withSk(sk);
    
            AomClient client = AomClient.newBuilder()
                    .withCredential(auth)
                    .withRegion(AomRegion.valueOf("<YOUR REGION>"))
                    .build();
            ListMetricItemsRequest request = new ListMetricItemsRequest();
            MetricAPIQueryItemParam body = new MetricAPIQueryItemParam();
            body.withInventoryId("application_xxxxxxxx-xxxx-xxxx-xxxx-xxxxx3fee10");
            request.withBody(body);
            try {
                ListMetricItemsResponse response = client.listMetricItems(request);
                System.out.println(response.toString());
            } catch (ConnectionException e) {
                e.printStackTrace();
            } catch (RequestTimeoutException e) {
                e.printStackTrace();
            } catch (ServiceResponseException e) {
                e.printStackTrace();
                System.out.println(e.getHttpStatusCode());
                System.out.println(e.getRequestId());
                System.out.println(e.getErrorCode());
                System.out.println(e.getErrorMsg());
            }
        }
    }
    

Python

  • Query metrics by inventory ID.
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    # coding: utf-8
    
    import os
    from huaweicloudsdkcore.auth.credentials import BasicCredentials
    from huaweicloudsdkaom.v2.region.aom_region import AomRegion
    from huaweicloudsdkcore.exceptions import exceptions
    from huaweicloudsdkaom.v2 import *
    
    if __name__ == "__main__":
        # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        ak = os.environ["CLOUD_SDK_AK"]
        sk = os.environ["CLOUD_SDK_SK"]
        projectId = "{project_id}"
    
        credentials = BasicCredentials(ak, sk, projectId)
    
        client = AomClient.new_builder() \
            .with_credentials(credentials) \
            .with_region(AomRegion.value_of("<YOUR REGION>")) \
            .build()
    
        try:
            request = ListMetricItemsRequest()
            listDimensionsMetricItems = [
                Dimension(
                    name="appName",
                    value="aomApp"
                ),
                Dimension(
                    name="clusterName",
                    value="aomCluster"
                )
            ]
            listMetricItemsbody = [
                QueryMetricItemOptionParam(
                    dimensions=listDimensionsMetricItems,
                    namespace="PAAS.CONTAINER"
                )
            ]
            request.body = MetricAPIQueryItemParam(
                metric_items=listMetricItemsbody
            )
            response = client.list_metric_items(request)
            print(response)
        except exceptions.ClientRequestException as e:
            print(e.status_code)
            print(e.request_id)
            print(e.error_code)
            print(e.error_msg)
    
  • Query metrics by namespace, appName, and clusterName.
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    # coding: utf-8
    
    import os
    from huaweicloudsdkcore.auth.credentials import BasicCredentials
    from huaweicloudsdkaom.v2.region.aom_region import AomRegion
    from huaweicloudsdkcore.exceptions import exceptions
    from huaweicloudsdkaom.v2 import *
    
    if __name__ == "__main__":
        # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        ak = os.environ["CLOUD_SDK_AK"]
        sk = os.environ["CLOUD_SDK_SK"]
        projectId = "{project_id}"
    
        credentials = BasicCredentials(ak, sk, projectId)
    
        client = AomClient.new_builder() \
            .with_credentials(credentials) \
            .with_region(AomRegion.value_of("<YOUR REGION>")) \
            .build()
    
        try:
            request = ListMetricItemsRequest()
            request.body = MetricAPIQueryItemParam(
                inventory_id="application_xxxxxxxx-xxxx-xxxx-xxxx-xxxxx3fee10"
            )
            response = client.list_metric_items(request)
            print(response)
        except exceptions.ClientRequestException as e:
            print(e.status_code)
            print(e.request_id)
            print(e.error_code)
            print(e.error_msg)
    

Go

  • Query metrics by inventory ID.
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    package main
    
    import (
    	"fmt"
    	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
        aom "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/aom/v2"
    	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/aom/v2/model"
        region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/aom/v2/region"
    )
    
    func main() {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        ak := os.Getenv("CLOUD_SDK_AK")
        sk := os.Getenv("CLOUD_SDK_SK")
        projectId := "{project_id}"
    
        auth := basic.NewCredentialsBuilder().
            WithAk(ak).
            WithSk(sk).
            WithProjectId(projectId).
            Build()
    
        client := aom.NewAomClient(
            aom.AomClientBuilder().
                WithRegion(region.ValueOf("<YOUR REGION>")).
                WithCredential(auth).
                Build())
    
        request := &model.ListMetricItemsRequest{}
    	var listDimensionsMetricItems = []model.Dimension{
            {
                Name: "appName",
                Value: "aomApp",
            },
            {
                Name: "clusterName",
                Value: "aomCluster",
            },
        }
    	var listMetricItemsbody = []model.QueryMetricItemOptionParam{
            {
                Dimensions: &listDimensionsMetricItems,
                Namespace: model.GetQueryMetricItemOptionParamNamespaceEnum().PAAS_CONTAINER,
            },
        }
    	request.Body = &model.MetricApiQueryItemParam{
    		MetricItems: &listMetricItemsbody,
    	}
    	response, err := client.ListMetricItems(request)
    	if err == nil {
            fmt.Printf("%+v\n", response)
        } else {
            fmt.Println(err)
        }
    }
    
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    package main
    
    import (
    	"fmt"
    	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
        aom "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/aom/v2"
    	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/aom/v2/model"
        region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/aom/v2/region"
    )
    
    func main() {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        ak := os.Getenv("CLOUD_SDK_AK")
        sk := os.Getenv("CLOUD_SDK_SK")
        projectId := "{project_id}"
    
        auth := basic.NewCredentialsBuilder().
            WithAk(ak).
            WithSk(sk).
            WithProjectId(projectId).
            Build()
    
        client := aom.NewAomClient(
            aom.AomClientBuilder().
                WithRegion(region.ValueOf("<YOUR REGION>")).
                WithCredential(auth).
                Build())
    
        request := &model.ListMetricItemsRequest{}
    	inventoryIdMetricApiQueryItemParam:= "application_xxxxxxxx-xxxx-xxxx-xxxx-xxxxx3fee10"
    	request.Body = &model.MetricApiQueryItemParam{
    		InventoryId: &inventoryIdMetricApiQueryItemParam,
    	}
    	response, err := client.ListMetricItems(request)
    	if err == nil {
            fmt.Printf("%+v\n", response)
        } else {
            fmt.Println(err)
        }
    }
    

More

For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.

Status Codes

Status Code

Description

200

OK: The request is successful.

400

Bad Request: The request is invalid. The client should not repeat the request without modifications.

401

Unauthorized: The authentication information is incorrect or invalid.

403

Forbidden: The request is rejected. The server has received the request and understood it, but the server refuses to respond to it. The client should not repeat the request without modifications.

500

Internal Server Error: The server is able to receive the request but unable to understand the request.

503

Service Unavailable

The requested service is invalid. The client should not repeat the request without modifications.

Error Codes

See Error Codes.

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