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
- 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 }] }] }] }
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