Collectd -> Telegraf -> InfluxDB2

Telegraf
1

Hi,

I have upgrade my InfluxDB from 1.8 to 2.1. For preserve my Collectd (OpenWRT) monitoring, now I use Telegraf to inject data from Collectd to InfluxDB.

[[inputs.socket_listener]]
#  Receive collectd stats from VCS devices
service_address = "udp://0.0.0.0:25826"
#
#  ## Data format to consume.
#  ## Each data format has its own unique set of configuration options, read
#  ## more about them here:
#  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
data_format = "collectd"

#  ## Authentication file for cryptographic security levels
#  ## collectd_auth_file = "/etc/collectd/auth_file"
#  ## One of none (default), sign, or encrypt
#  ## collectd_security_level = "encrypt"
#  ## Path of to TypesDB specifications
collectd_typesdb = ["/usr/share/collectd/types.db"]

Since this modification, I have loosed information about stations:

from(bucket: "${bucket}")
  |> range(start: v.timeRangeStart, stop:v.timeRangeStop)
  |> filter(fn: (r) =>
    r._measurement == "iwinfo_value" and
    r._field == "value" and
    r.host == "hubble" and
    r.type == "stations" and
    r.instance == "wlan0"
  )
  |> aggregateWindow(every: v.windowPeriod, fn: last)
  |> yield(name: "last")

Is there some informations to set to define type (type=stations) in the collectd injection ?

2

Hi,

As there are a number of moving parts in your configuration, I think the first step is determining where the data is getting lost.

I like to use Telegraf’s [[outputs.file]] to write the data I am collecting to stdout. That way I can ensure that the data is actually getting collected by Telegraf first.

Is that something you could try? Or are you certain the data is in InfluxDB already?

Thanks!

3

OK, solved. I have copy/paste the types.db from openwrt in my telegraf server. It’s seem OK !