删除节点

stream
  |delete()
    .field('value')
    .tag('host')

delete.field(name string)

delete.quiet()

delete.tag(name string)

delete|alert()

delete|barrier()

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

delete|changeDetect(field string)

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

delete|count(field string)

delete|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...

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

delete|default()

delete|delete()

delete|derivative(field string)

delete|difference(field string)

delete|distinct(field string)

delete|ec2Autoscale()

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

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

delete|first(field string)

delete|flatten()

    |groupBy(*)

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

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

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

delete|httpOut(endpoint string)

delete|httpPost(url ...string)

delete|influxDBOut()

delete|join(others ...Node)

delete|k8sAutoscale()

delete|kapacitorLoopback()

delete|last(field string)

delete|log()

delete|max(field string)

delete|mean(field string)

delete|median(field string)

delete|min(field string)

delete|mode(field string)

delete|movingAverage(field string, window int64)

delete|percentile(field string, percentile float64)

delete|sample(rate interface{})

delete|shift(shift time.Duration)

delete|sideload()

delete|spread(field string)

delete|stateCount(expression ast.LambdaNode)

delete|stateDuration(expression ast.LambdaNode)

delete|stats(interval time.Duration)

delete|stddev(field string)

delete|sum(field string)

delete|swarmAutoscale()

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

delete|trickle()

delete|union(node ...Node)

delete|where(expression ast.LambdaNode)

delete|window()