DefaultNode

stream
  |default()
    .field('value', 0.0)
    .tag('host', '')

default.field(name string, value interface{})

default.quiet()

default.tag(name string, value string)

default|alert()

default|barrier()

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

default|changeDetect(field string)

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

default|count(field string)

default|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...

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

default|default()

default|delete()

default|derivative(field string)

default|difference(field string)

default|distinct(field string)

default|ec2Autoscale()

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

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

default|first(field string)

default|flatten()

    |groupBy(*)

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

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

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

default|httpOut(endpoint string)

default|httpPost(url ...string)

default|influxDBOut()

default|join(others ...Node)

default|k8sAutoscale()

default|kapacitorLoopback()

default|last(field string)

default|log()

default|max(field string)

default|mean(field string)

default|median(field string)

default|min(field string)

default|mode(field string)

default|movingAverage(field string, window int64)

default|percentile(field string, percentile float64)

default|sample(rate interface{})

default|shift(shift time.Duration)

default|sideload()

default|spread(field string)

default|stateCount(expression ast.LambdaNode)

default|stateDuration(expression ast.LambdaNode)

default|stats(interval time.Duration)

default|stddev(field string)

default|sum(field string)

default|swarmAutoscale()

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

default|trickle()

default|union(node ...Node)

default|where(expression ast.LambdaNode)

default|window()