Suricata

Suricata supports many metrics from the flow manager, but not a counter of active flows. From what I can gather from the flow stats, what's mainly present are counters that increment when certain actions are taken, such as a new flow of a given type is allocated, or when the flow manager takes some action. The deltas of stats provide how many new flows have started in the stats period, but not how many are currently active. This feature request is for a stat that represents the number of active flows in the flow table, where active refers to a flow that has been allocated and is not timed out.

Please let me know if such a stat already exists that I missed, or if this is completely not feasible due to the implementation of flow management.