Hello,

DetectDuplicate uses a DistributedMapCacheClientService which would be
connecting to a DistributedMapCacheServer on one of your nodes.

So all nodes should be connecting to the same cache server which is
where the information about previously seen data is stored.

-Bryan

On Tue, Apr 10, 2018 at 1:24 PM, Eric Ulicny <euli...@umich.edu> wrote:
> Hello,
>
> We have a use case where we execute processors on all nodes but would like
> to use the detect duplicate processor to ensure records are unique. We are
> observing that we must run it on one node to truly detect duplicates. Is
> there any way to merge flowfiles from all running executors?
>
> -Eric

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