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time-seriestaskinfluxdbkapacitor
David Gidony
David Gidony

Reputation: 1283

Kapacitor - Editing A Metric value with a tick script

in a simple tick script, how can i query points and edit some key/values ?

i have this tick script:

     var data = batch
         |query(''' SELECT * FROM "telegraf"."autogen"."cpu" ''')
             .period(5m)
             .every(10s)
             .groupBy(*)
         |influxDBOut()
             .database('telegraf)
             .retentionPolicy('autogen')
             .measurement('modified_data)

that queries some data, i want to change the CPU field on each point and add 5 to its value.

how can i do that ? thanks. Dave.

Upvotes: 0

Views: 1212

Answers (1)

Akhil Tak
Akhil Tak

Reputation: 46

Normally, you change the fields inside CPU measurement.

For example, let's say your CPU measurement contains a field named time_idle, then you just have to insert an "eval" node before the output node.

 var data = batch
     |query(''' SELECT * FROM "telegraf"."autogen"."cpu" ''')
         .period(5m)
         .every(10s)
         .groupBy(*)
     |eval(lambda: "time_idle" + 5)
         .as('time_idle_plus_5')
     |influxDBOut()
         .database('telegraf')
         .retentionPolicy('autogen')
         .measurement('modified_data')

Would be a good idea to read more about eval node here and about TICKScript nodes in general.

Upvotes: 1

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