As a follow up to this thread, I investigated some time to the problem. For NR on Venus it is not possible to collect a bigger number of measurement values in a file without heavy degrading of perfomance after some hours. Therefore a time series database seems unavoidable. Finally I found, it seems not possible to run influxdb with a Venus system.
More or less accidently I tried to install InfluxDB at my synology rackstation RS816 as this fileserver runs 24/7 anyway and could hold the database on its RAID for backup purposes. Unfortunately InfluxDB is a pure 64 bit application. The RS816 rackstation contains a Marvell Armada CPU what is a 32 bit Cortex A7 while Influx-DB does not support any 32 bit architectures.
Same is for any Cerbo-GX what contains Allwinner sun7i ARM
Same is for any Ekrano-GX what contains Allwinner sun8i ARM
The RS819 rackstation contains a CPU Realtek RTD1296 1,4 GHz what is a 64 bit quad core. This could be a possible machine but I dont have this model.
Another chance is to try my Mikrotik router board RB 5009 what contains a 88F7040 ARM 64 bit CPU but I hesitated and prefered to try a Raspberry Pi 5 with a Broadcom BCM2712 quad-core Arm Cortex A76 processor @ 2.4GHz what I had in my drawer. After installing a Debian image to the SD card, InfluxDB V2 installation went through without using any Docker.
Would be nice to run InfluxDB or even Grafana on a device like the Ekrano in future. Obviosly this requires a complete new 64 bit Venus version and increases the 24/7 power consumption several Watts.
