processor-drop_fields.asciidoc

Drop fields from events

drop_fields

The drop_fields processor specifies which fields to drop if a certain condition is fulfilled. The condition is optional. If it’s missing, the specified fields are always dropped. The @timestamp and type fields cannot be dropped, even if they show up in the drop_fields list.

Example

  - drop_fields:
      when:
        condition
      fields: ["field1", "field2", ...]
      ignore_missing: false

Note	If you define an empty list of fields under drop_fields, no fields are dropped.

Configuration settings

processors.asciidoc :works-with-fields!:

Name	Required	Default	Description
fields	Yes		If non-empty, a list of matching field names will be removed. Any element in array can contain a regular expression delimited by two slashes ('/reg_exp/'), in order to match (name) and remove more than one field.
ignore_missing	No	false	If true, the processor ignores missing fields and does not return an error.

See [conditions] for a list of supported conditions.