GroupByNode

stream
  |groupBy('service', 'datacenter')
  ...

     ...
     |groupBy('host')
         .byMeasurement()

    |groupBy(*)

groupBy.byMeasurement()

groupBy.quiet()

groupBy|alert()

groupBy|barrier()

groupBy|bottom(num int64, field string, fieldsAndTags ...string)

groupBy|changeDetect(field string)

groupBy|combine(expressions ...ast.LambdaNode)

groupBy|count(field string)

groupBy|cumulativeSum(field string)

    var data = stream
        |from()...
    // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s.
    data
        |deadman(100.0, 10s)
    //Do normal processing of data
    data...

    var data = stream
        |from()...
    // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s.
    data
        |stats(10s)
            .align()
        |derivative('emitted')
            .unit(10s)
            .nonNegative()
        |alert()
            .id('node \'stream0\' in task \'{{ .TaskName }}\'')
            .message('{{ .ID }} is {{ if eq .Level "OK" }}alive{{ else }}dead{{ end }}: {{ index .Fields "emitted" | printf "%0.3f" }} points/10s.')
            .crit(lambda: "emitted" <= 100.0)
    //Do normal processing of data
    data...

    var data = stream
        |from()...
    // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s.
    data
        |deadman(100.0, 10s)
            .slack()
            .channel('#dead_tasks')
    //Do normal processing of data
    data...

    var data = stream
        |from()...
    // Trigger critical alert if the throughput drops below 100 points per 10s and checked every 10s.
    // Only trigger the alert if the time of day is between 8am-5pm.
    data
        |deadman(100.0, 10s, lambda: hour("time") >= 8 AND hour("time") <= 17)
    //Do normal processing of data
    data...

groupBy|deadman(threshold float64, interval time.Duration, expr ...ast.LambdaNode)

groupBy|default()

groupBy|delete()

groupBy|derivative(field string)

groupBy|difference(field string)

groupBy|distinct(field string)

groupBy|ec2Autoscale()

groupBy|elapsed(field string, unit time.Duration)

groupBy|eval(expressions ...ast.LambdaNode)

groupBy|exclude(dims ...string)

groupBy|first(field string)

groupBy|flatten()

    |groupBy(*)

groupBy|groupBy(tag ...interface{})

groupBy|holtWinters(field string, h int64, m int64, interval time.Duration)

groupBy|holtWintersWithFit(field string, h int64, m int64, interval time.Duration)

groupBy|httpOut(endpoint string)

groupBy|httpPost(url ...string)

groupBy|influxDBOut()

groupBy|join(others ...Node)

groupBy|k8sAutoscale()

groupBy|kapacitorLoopback()

groupBy|last(field string)

groupBy|log()

groupBy|max(field string)

groupBy|mean(field string)

groupBy|median(field string)

groupBy|min(field string)

groupBy|mode(field string)

groupBy|movingAverage(field string, window int64)

groupBy|percentile(field string, percentile float64)

groupBy|sample(rate interface{})

groupBy|shift(shift time.Duration)

groupBy|sideload()

groupBy|spread(field string)

groupBy|stateCount(expression ast.LambdaNode)

groupBy|stateDuration(expression ast.LambdaNode)

groupBy|stats(interval time.Duration)

groupBy|stddev(field string)

groupBy|sum(field string)

groupBy|swarmAutoscale()

groupBy|top(num int64, field string, fieldsAndTags ...string)

groupBy|trickle()

groupBy|union(node ...Node)

groupBy|where(expression ast.LambdaNode)

groupBy|window()