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https://issues.apache.org/jira/browse/NIFI-7698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17268263#comment-17268263
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ASF subversion and git services commented on NIFI-7698:
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Commit 930e8d9e0e59ff24f50d7e3a052870b1112f076a in nifi's branch
refs/heads/main from Mark Payne
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=930e8d9 ]
NIFI-7698: Added a merge.reason attribute for flowfiles indicating why they
were merged by MergeContent. Also updated logs to indicate the reason and added
additional documentation for processor
Signed-off-by: Matthew Burgess <[email protected]>
This closes #4764
> MergeContent should include Details in provenance event indicating why bin
> was merged
> -------------------------------------------------------------------------------------
>
> Key: NIFI-7698
> URL: https://issues.apache.org/jira/browse/NIFI-7698
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Major
> Fix For: 1.13.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> MergeContent has many different configuration options. There are options for
> the minimum number of objects/bytes, and the maximum number of objects/bytes.
> There's an option for the maximum amount of time that a bin can last before
> being merged. There's also a maximum number of bins, and if that number is
> exceeded, a bin is evicted prematurely. As a result, MergeContent sometimes
> merges bins when users do not expect this to happen. Unfortunately, it does
> so without indicating why the bin was merged. When FlowFiles are merged, the
> Provenance Event should contain extra details indicating the reason that the
> bin was merged:
> - Bin Expiration Time was reached
> - Maximum number of objects was reached
> - Maximum number of bytes were reached
> - Minimum number of objects reached but not maximum
> - Minimum number of bytes reached but not maximum
> - FlowFile did not fit in any bin, and maximum number of bins reached
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