In memory repository
If the value of the property nifi.components.status.repository.implementation is VolatileComponentStatusRepository, the status history data will be stored in memory. If the application stops, all gathered information will be lost.
The buffer.size and snapshot.frequency work together to determine the amount of historical data to retain. As an example, to configure two days' worth of historical data with a data point snapshot occurring every 5 minutes you would configure snapshot.frequency to be "5 mins" and the buffer.size to be "576". To further explain this example, for every 60 minutes there are 12 (60 / 5) snapshot windows for that time period. To keep that data for 48 hours (12 * 48) you end up with a buffer size of 576.
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Specifies the buffer size for the Status History Repository. The default value is |
