Advice for tags

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1

Hi there,

i have a generall question:
I got a couple of use-cases where devices are reporting readings and tag them with their device id.

For working with the data the human-readble name of the device is needed.

Is it really the best way, to run a kapacitor task that add those human readable names as tags?

Please advice.

Regards

Tim

2

Hello @TimmiB,
It depends, how are you writing data into InfluxDB?

3

Hello @Anaisdg,

in one case the data is written with curl directly from a wifi-router. In the other case, also with curl, but from a raspberrypi collecting data over radio from temperature sensors and the third case snmp data from a switch collected with raspberry pi with telegraf.

So in the first case i got MAC-adresses, in the second four-digit alph-numeric like ‘a4f2’ and in the third port numbers as tags.

What i am looking for is some kind of labeling, aliasing which i would solve in the relational database world with a simple join to lookup.

Regards

Tim

4

If you know the mappings at collection time, you can use the enum processor in Telegraf. You could send the curl data also though Telegraf using the influxdb_listener input.

[[processors.enum]]
  namepass = ["snmp"]
  [[processors.enum.mapping]]
    tag = "device_id"
    dest = "device"
    default = "unkown"
    [processors.enum.mapping.value_mappings]
      "a" = "device a"
      "b" = "device b"
5

Works like a charm! Thank you very much!