Frustrated with Grafana/Influxdb and Collectd

[jinu]

Hi Folks
I am at my wits end trying to get this combination to work. For whatever reason some of the data/metrices gathered by collectd is not being sent to influxdb. in my setup grafana and influxdb are running in a jail. Some of the data like CPU data flows to influxdb. But some of the data like disktemp does not. I checked for rrd files on the main server and i can find the updated rrd files which was last updated about 5 minutes back, but in influxdb its over 5 hours old

Any ideas what could be going wrong ?

 

[Patrick M. Hausen]

Try inside your jail

Code:

influx
> use <your-database-name>;
> show series;

to see the structure of the data sent.

My influx ingres looks like this:

Code:

[[graphite]]
  enabled = true
  database = "graphite"
  retention-policy = ""
  bind-address = ":2003"
  protocol = "tcp"
  consistency-level = "one"

  separator = "."

  templates = [
    "servers.* .hostname.resource.instance.measurement*",
  ]

HTH,
Patrick

 

[jinu]

well i dropped the influx db and recreated it and then restarted influxdb. Now the disktemp is flowing fine, but now the aggregation data stopped flowing. The templates i am using are

"servers.*.disktemp.* .host.measurement.disk.field", "servers.*.aggregation.* ...measurement.field", "servers.*.load.* ...measurement.field",

now i dont know what to do to make aggregation data flow to influx

 

[jinu]

managed to get most of it working. by changing measurement.field to measurement.field*. Now as i try to read the data i came across a new problem. This is related to CPUTEMP data. Here cpu temp is collected at each core level. But the value that is read and stored is a 4 digit number. I thought initially that is was probably storing without decimals, but when i compare that to the CPU temp reported by TRUENAS in "Reporting" it does not match.

The below is a sample of the values i am seeing at this time temp reported by TRUENAS reporting is 37 degree C

1613728053000000000 3081 1613728063000000000 3091 1613728073000000000 3101 1613728083000000000 3081 1613728093000000000 3091 1613728103000000000 3101

So does anyone know how to convert the CPUTEMP data to Celsius degrees ?

 

[Patrick M. Hausen]

So does anyone know how to convert the CPUTEMP data to Celsius degrees?

measurement / 10 - 273.15

So measurement is in decigrade above absolute zero.

 

[jinu]

Thanks got it working.