Disable time and tags in fluentd stdout output plugin

Question

Remove time and tag from fluentd output plugin stdout with json

Fluentd's output plugin produces output like:

2017-11-28 11:43:13.814351757 +0900 tag: {"field1":"value1","field2":"value2"}

So timestamp and tag are before the json. How can I remove these fields - I only like to have the json output

<match pattern>
  @type stdout
</match>

expected output: {"field1":"value1","field2":"value2"}

Sardonyx

Were you able to resolve this? I am facing the same issue and have been unsuccessful in addressing the issue – Malaspina

Hi @Sardonyx did you manage solving this? – Increate

Answer 1

Set the json format type which by default doesn't includes time and tag in output:

<match pattern>
  @type stdout
  <format>
    @type json
  </format>
</match>

Unburden

Answer 2

Did you try filters?

<filter pattern>
  @type record_transformer
  <record>
      ${tag}
  </record>
</filter>

Guanabara

no still the same behaviour. I hope there is a way to change the pattern of the output plugin, by default json format does not add these fields but the stdout plugin does referring to the manual. – Sardonyx

Seems like the opposite what the OP was asking, but exactly what I was looking for. Thank you. – Banded

time and tag are not parts of record. that's why this won't work. @type stdout automatically adds time and tag to each line on its own. – Tumbling