Missing value: load15

[zabudskyi]

I have load15, disk and ram similar alerts (differences are only in measurement, value name and warn/crit). All alerts work fine (including load15) but I am getting this error in logs

ts=2018-01-18T10:10:37.069Z lvl=error msg="error evaluating expression" service=kapacitor task_master=main task=load15_alert node=eval2 err="missing value: \"load15\""

My config

/etc/kapacitor/load/tasks/load15_alert.tick 
dbrp "telegraf"."autogen"

var warn = 1
var crit = 2
var whereFilter = lambda: TRUE

var data = stream
    |from()
        .measurement('system')
        .groupBy('host')
        .where(whereFilter)
    |eval(lambda: "load15")
        .as('value')

  var trigger = data
      |alert()
          .id('{{ index .Tags "host"}}/load15')
          .crit(lambda: "value" > crit)
          .warn(lambda: "value" > warn)
          .stateChangesOnly()
          .message('{{ .Level }} - {{ index .Tags "host" }} load15 is {{ index .Fields "value" }}')
          .post('http://example.com/api/alert')
          .slack()

When I disable this task, error disappears.
Debian 9
Kapacitor 1.4.0

[hnk]

Hello all,
I too am running into the same problem. I created the tickscript using chronograph v1.4.1.3

Running on Ubuntu 16.04.3 with kapacitor v1.4.0

[Anderen2]

See issue #1217, I believe this is the same thing