Node red + InfluxDB question

General
1

I have a project that uses NR + influxDB. I have grafana displaying my data, but the chart is embedded into an NR page. I'm trying to avoid using grafana dashboard. I'm just embedding the charts. from NR, how do I download the data?

Let's say I'm storing a lot of data, where does this data go? Is it written into a CSV file that just gets bigger and bigger until my Pi runs out of room?

2

Do you mean that you don't want to use the grafana charts? Or perhaps that you want to use the grafana charts, but without the grafana menus etc.

3

I'm using the grafana charts, but embedding them into NR dash.
Does NR have a way to download influxDB data?

4

Yes, of course, node-red-contrib-influxdb.
You will not be able to achieve anything like the functionality that grafana supplies though.

5

How would you download influxDB data? In Grafana I've poked around and found a download to CSV button.

Do you know how influxDB stores its data? Is it logging every point that comes in? What happens when I run out of room on the Pi?

6

It is a DB so the data is already on you PI, if you installed InfluxDB on your pi.

Why do you want to download it?

7

Download from where to where?
If you mean you want to get it into node-red then use node-red-contrib-influxdb as I said.

How can you be using Influxdb and not know the answer to those questions already? I think you need to do some serious reading up on influx, which is nothing to do with node-red of course.

8

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