In the industrial control system world we call time series DBs 'Enterprise Historians' they are well optimised. Good ones support storing data at native frequency of control system including sub-second intervals. Basically whatever frequency the instrument can sample at these things can record.
They also have good compression and buffering support, including catchup functionality.
They are by no means lightweight - usually they rely on PLC's or SCADA system for inputs. They may not offer a complete solution for IOT but I'm sure there are lessons which can be adapted.
They also have good compression and buffering support, including catchup functionality.
They are by no means lightweight - usually they rely on PLC's or SCADA system for inputs. They may not offer a complete solution for IOT but I'm sure there are lessons which can be adapted.