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Question on renaming a field in a json event

  • March 11, 2025
  • 7 replies
  • 34 views
J

anybody know how I would go about renaming a field "fields.metric_name" in a json event to the value of a different field that I've already concatenated what I need to be in the new field name?old namefields.metric_name=`metric_name:${object}.${collection}`but I need the new field to befields.metric_name:System.Threads with a value of _value

    7 replies

    B

    You want the "Publish Metrics" function: https://docs.cribl.io/stream/publish-metrics-function/

    J
    • jlstanley
    • Author
    • Known Participant
    • March 11, 2025

    you mean use that function to rename a json field like the one above to the value of another field and assign it a value of a different field?

    B

    Like this:

    J
    • jlstanley
    • Author
    • Known Participant
    • March 11, 2025

    this works for single perfmon metrics. I just tested with MultiKV metrics and it doesn't.

    B

    Would you be willing to provide a sample input and the desired output? DM if you want

    B

    I think you're in a private channel if you want to invite me there for a discussion

    J
    • jlstanley
    • Author
    • Known Participant
    • March 11, 2025

    sure. thanks. I'll upload sample data as well in the morning to the private channel.

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