Likely the sensor data being stuffed into a "standard" SQL schema -- loads of these bespoke solutions aren't fully dialed in with tools like timescaleDB, or Pro

Likely the sensor data being stuffed into a "standard" SQL schema -- loads of these bespoke solutions aren't fully dialed in with tools like timescaleDB, or Prometheus for these metrics. Even with slower (eg 240s interval) sensors the data builds up -- and slows the systems (w/o indexes).