This type of metric allows data to be retrieved from an external data source.
With this metric, data is retrieved only on demand, for example when a widget asks for the metric values of a specific period.
Creating a Volatile metric
To add a new Volatile Metric to a Thing Definition, you should:
- Ensure to have activated and configure a plugin providing external data source access.
The plugins supporting volatile metrics are: InfluxDB, Snowflake. - Enter the RAW Data page.
- Select the Thing Definitions tab.
- Select the Thing Definition to edit.
- Press the Add Metric button.
- Select the Volatile Metric type and provide the required information.
- Press the Save button and edit the additional information, if needed.
Editing a Volatile metric
Once created, a volatile metric requires configuring the query to retrieve data from the remote data source.
The way the metric is configured depends on the selected data source; for more details, refer to one of the following plugins:
Displaying Volatile metric data
Once configured, within dashboards, you can insert any type of widget that supports metrics.
From a UI point of view, volatile metrics are the same as other metrics.
Limitations
- Volatile metrics cannot be used within periodic computations such as (Events, Automations, Computed Metrics and Insights).
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