We are trying kapacitor in kubernetes cluster to send the alert
notifications .
As a example the "memory/usage" values send by heapster as stored as bytes
in influxDB like this (3.60463797709804e+08). The equivalent readable value
is 360MB.
My question is how to convert those values from mean('value') from bytes to
Megabytes and compare.
Below is the tick file i used.
// Parameters
var info = 10
var warn = 150
var crit = 170
var period = 2m
var every = 2m
stream
|from() .database('k8s')
.retentionPolicy('default')
.measurement('memory/usage')
.groupBy('hostname')
|window()
// keep the most recent 2m of data
.period(period)
// Every minute emit the last 2 minutes of data to check if
the min is greater than 95
// this could be any value, depending on how often you want to
recheck the window.
.every(every)
|mean('value')
.as('used')
|alert()
.id('{{index .Tags "hostname" }} memory utilization in MB')
.message('{{ .ID }} is {{ .Level }} value:{{ index .Fields
"used" }}')
.info(lambda: "used" > info)
.warn(lambda: "used" > warn)
.crit(lambda: "used" > crit)
.stateChangesOnly()
.log('/tmp/alerts.log')
--
Remember to include the InfluxDB version number with all issue reports
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