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https://issues.apache.org/jira/browse/NIFI-378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph Witt reopened NIFI-378:
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Assignee: Joseph Witt
> MergeContent in Defragment mode will merge fragments without checking index
> ---------------------------------------------------------------------------
>
> Key: NIFI-378
> URL: https://issues.apache.org/jira/browse/NIFI-378
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 0.0.1
> Reporter: Michael Moser
> Assignee: Joseph Witt
> Priority: Minor
>
> When in Defragment mode, the MergeContent processor looks for
> fragment.identifier and fragment.count attributes in order to place FlowFiles
> in the correct bin. The fragment.index attribute is ignored.
> If you happen to have many FlowFile in the queue to MergeContent, and they
> all have fragment.identifier=foo and fragment.count=2, then it will merge two
> FlowFiles that have fragment.index=1 or it will merge two FlowFiles that have
> fragment.index=2.
> Granted this may seem odd. The use case is to give the MergeContent
> processor two input queues. We configure one queue to contain files with
> fragment.index=1 and the other queue to contain files with fragment.index=2.
> We want one file from each queue to be merged. Instead it will merge two
> files from the same queue.
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