Formatted values in logstash are not displayed

Formatted values in logstash are not displayed.

  • want to
    I would like to split the log collected by logstash and get it by dissect, and check each in a different field in Kibana.

  • issue
    However, the variable name on the logstash is displayed instead of the retrieved value.
    How can I display the retrieved value?

  • experiment

    A	B


    ... snip ...
    filter {
      dissect {
        mapping => {
          "message" => "%{ia}	%{ib}"
      mutate {
        add_field => { "a" => "%{ia}" }
        add_field => { "b" => "%{ib}" }


    "a" => "A",
    "b" => "B"


    "a" => "%{ia}",
    "b" => "%{ib}"

In Kibana, it looks like this

Was it the logstash category, not Kibana?
I apologize for that.
I hope someone can answer my question.

The problem is solved in this thread, and I'll write down the URL.

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