we will upgrade InfluxDB from 1.7.2 to 1.7.3  (which will also give us Flux 0.12.0) and Grafana from 5.4.2 to 5.4.3 . Because of this, the data acquisition system will be partly unavailable later that night. We do not expect the maintenance tasks to take longer than an hour in total.
We are sorry for any inconveniences this might cause to you.
With kind regards,
the people of Hiveeyes.