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https://issues.apache.org/jira/browse/NIFI-6464?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alessandro D'Armiento resolved NIFI-6464.
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Resolution: Not A Problem
> ListHDFS should support fragment attributes with strategies
> -----------------------------------------------------------
>
> Key: NIFI-6464
> URL: https://issues.apache.org/jira/browse/NIFI-6464
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Affects Versions: 1.9.2
> Reporter: Alessandro D'Armiento
> Priority: Minor
>
> h2. Current Situation
> ListHDFS doesn't support Fragmentation attributes
> h2. Improvement Proposal
> * Since the processor works on a 1:N semantic (1 input trigger flowfile, N
> output flowfiles) it would be nice to support fragmentation attributes (for
> example for subsequent merge operations)
> ** It would be also useful to support different fragmentation strategies, in
> order to support multiple user cases. For example, it should be possible to
> select:
> *** A "one for all" fragmentation strategy which will create a single
> fragmentation group. Therefore, all files will have the same
> fragment.identifier, the same fragment.count, equal to the total number N of
> listed files, and fragment.index ∈ [0, N).
> *** A "per subdir" fragmentation strategy which will create different
> fragmentation groups, one for each scanned subdirectory of the given path.
> Therefore, for each subfolder, flowfiles will have a specific
> fragment.identifier, fragment.count will be, for each flowfile, equal to the
> number Ni of files in the i-th directory, and fragment.index ∈ [0, Ni).
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