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https://issues.apache.org/jira/browse/NIFI-6970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17009022#comment-17009022
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Joe Witt commented on NIFI-6970:
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once there is a PR and merge happening we can set a fix version
> Add DistributeRecord processor for distribute data by key hash
> --------------------------------------------------------------
>
> Key: NIFI-6970
> URL: https://issues.apache.org/jira/browse/NIFI-6970
> Project: Apache NiFi
> Issue Type: New Feature
> Components: Extensions
> Affects Versions: 1.10.0
> Reporter: Ilya Kovalev
> Priority: Minor
>
> Necessary to add processor for {color:#00875a}Record{color} distribution.
> Processor must have next fields :
> reader, writer, keys (list of {color:#00875a}Record{color} fields for
> hashing), hash function name.
> and an arbitrary number of dynamic properties representing relationships.
> Also relationships would have weights.
> if we have one key and this key is integer then hash function does not
> evaluate. If we have several keys then cast record values to String and join
> them with "-" delimiter
> like "34-NY-open".
> Hash function must return {color:#FF0000}int{color} value. Next processor
> find {color:#172b4d}+target relationship+ = {color}(hashResult %
> sum(weights)) and move record according integer range for relationships,
> so if we have 2 relationships with weights 4 and 7 appropriately then we have
> 2 intervals [0, 4) and [4, 11) for first and second relationship (order of
> relationships matters)
>
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