monitor.deadman() function detects when a group stops reporting data.
It takes a stream of tables and reports if groups have been observed since time
Function type: Transformation
import "influxdata/influxdb/monitor" monitor.deadman(t: 2019-08-30T12:30:00Z)
monitor.deadman() retains the most recent row from each input table and adds a
If a record appears after time
dead is set to
The time threshold for the deadman check.
Data type: Time
Detect if a host hasn’t reported in the last five minutes
import "influxdata/influxdb/monitor" import "experimental" from(bucket: "example-bucket") |> range(start: -10m) |> group(columns: ["host"]) |> monitor.deadman(t: experimental.subDuration(d: 5m, from: now() ))
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