Updated on 2023-11-30 GMT+08:00

Querying Time Series Data

Scenario

This section describes how to query the time series data about a node's CPU usage.

Obtaining Basic Information

Before querying time series data, obtain the node ID from dimensions on the ECS console, and the cluster ID from dimensions on the cluster management page of the CCE console.

For the CPU usage, obtain the metric name from VM Metrics, cluster and node ID dimensions from Metric Dimensions, and namespace from Table 4.

Querying Time Series Data

  • URI format

    POST /v2/{project_id}/samples

  • Example request

    POST https://{aom_endpoint}/v2/{project_id}/samples

    To obtain the value of {aom_endpoint}, see Regions and Endpoints.

    Body:

    {  
        "samples": [  
            {  
                "namespace": "PAAS.NODE",  
                "metric_name": "cpuUsage",
                   "dimensions": [ {  
                        "name": "clusterId",  
                        "value": "4fae3587-0202-11eb-9ba9-0255ac100b02"  
                    },
                    {  
                        "name": "hostID",  
                        "value": "4100f512-c4e9-4b65-b0dd-2b94ea5e1a84"  
                    }
                ]  
            }  
        ],  
        "period": 60,  
        "time_range": "-1.-1.2", 
        "statistics": [  
            "maximum",  
            "minimum",  
            "sum"  
        ]  
    }
  • Example response
    {
    	"samples": [{
    		"sample": {
    			"namespace": "PAAS.NODE",
    			"metric_name": "cpuUsage",
    			"dimensions": [{
    				"name": "clusterId",
    				"value": "4fae3587-0202-11eb-9ba9-0255ac100b02"
    			},
    			{
    				"name": "hostID",
    				"value": "4100f512-c4e9-4b65-b0dd-2b94ea5e1a84"
    			}]
    		},
    		"data_points": [{
    			"timestamp": 1608191880000,
    			"unit": "Percent",
    			"statistics": [{
    				"statistic": "maximum",
    				"value": 14.5
    			},
    			{
    				"statistic": "minimum",
    				"value": 14.5
    			},
    			{
    				"statistic": "sum",
    				"value": 14.5
    			}]
    		},
    		{
    			"timestamp": 1608191940000,
    			"unit": "Percent",
    			"statistics": [{
    				"statistic": "maximum",
    				"value": 12.0
    			},
    			{
    				"statistic": "minimum",
    				"value": 12.0
    			},
    			{
    				"statistic": "sum",
    				"value": 12.0
    			}]
    		}]
    	}]
    }