opensearch-docs-cn/_data-prepper/pipelines/configuration/processors/aggregate.md

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aggregate

Overview

Groups events together based on the keys provided and performs a action on each group.

Option	Required	Type	Description
identification_keys	Yes	List	A unordered list by which to group Events. Events with the same values for these keys are put into the same group. If an event does not contain one of the identification_keys, then the value of that key is considered to be equal to null. At least one identification_key is required. (e.g. ["sourceIp", "destinationIp", "port"]).
action	Yes	AggregateAction	The action to be performed for each group. One of the available aggregate actions must be provided or you can create custom aggregate actions. remove_duplicates and put_all are available actions. For more information, see creating custom aggregate actions.
group_duration	No	String	The amount of time that a group should exist before it is concluded automatically. Supports ISO_8601 notation strings ("PT20.345S", "PT15M", etc.) as well as simple notation for seconds ("60s") and milliseconds ("1500ms"). Default value is 180s.