54. MetricsΒΆ
SolarNode supports collecting and storing timestamped, named data point values locally in SolarNode. You might describe a metric like the power output of a solar inverter at noon on 2024-07-18. Metrics are not uploaded to SolarNetwork: they are specific to each node and can be used by plugins to monitor data points over time.
A metric in SolarNode has this basic structure:
| Property | Example | Description |
|---|---|---|
timestamp |
2024-07-18 19:48:50.003767Z |
The date the metric was created. |
type |
s |
A classifier. The s type represents a raw "sample". Other types can be used to represent other metric types, such as computed aggregation values. |
name |
gridPrice |
An arbitrary name for the metric. Typically these should be concise and use an expression-friendly syntax of just letters, numbers, and underscores. |
value |
123.4 |
The metric numeric value, as a 64-bit floating-point number. |
See the Metric Harvester filter as a way of collecting metrics from datum generated by Datum Source plugins. The Metrics page in the SolarNode UI offers a way to monitor metric collection.