First off thanks for reposting the question here.
Saying you want to trigger an alert when `used_percent` is above 95% for
more than 5 minutes is the same as saying that the minimum value for the
last 5 min is greater than 95%.
stream
|from()
.measurement('mem')
.groupBy('host')
|window()
// keep the most recent 5m of data
.period(5m)
// Every minute emit the last 5 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(1m)
|min('used_percent')
.as('used_percent')
|alert()
.id('{{index .Tags "host" }} memory utilization')
.message('{{ .ID }} is {{ .Level }} value:{{ index .Fields
"used_percent" }}')
.crit(lambda: "used_percent" > 95)
.stateChangesOnly()
.log('/tmp/alerts.log')
Hope that helps.
On Monday, August 1, 2016 at 11:53:50 AM UTC-6, [email protected] wrote:
>
> What should I add to this definition so that the critical alert gets
> triggered when the 'used_percent' is above 95 % *for more than 5 minutes*?
>
> Thanks!
>
> stream
> |from()
> .measurement('mem')
> .groupBy('host')
> |alert()
> .id('{{index .Tags "host" }} memory utilization')
> .message('{{ .ID }} is {{ .Level }} value:{{ index .Fields
> "used_percent" }}')
> .crit(lambda: "used_percent" > 95)
> .stateChangesOnly()
> .log('/tmp/alerts.log')
>
>
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