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https://issues.apache.org/jira/browse/NIFI-15904?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pierre Villard updated NIFI-15904:
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Fix Version/s: 2.10.0
Resolution: Fixed
Status: Resolved (was: Patch Available)
> StandardProcessSession.create() produces FlowFiles with ambigous Start
> Lineage Index
> ------------------------------------------------------------------------------------
>
> Key: NIFI-15904
> URL: https://issues.apache.org/jira/browse/NIFI-15904
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 2.0.0, 2.9.0
> Reporter: David Handermann
> Assignee: David Handermann
> Priority: Major
> Fix For: 2.10.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> The {{StandardProcessSession.create()}} method creates a new {{FlowFile}}
> without a parent, setting the entry date and lineage start date to the
> current time in milliseconds. The {{create()}} method does not set the
> Lineage Start Index, keeping the default value of 0. As a result of this
> behavior, it is possible for multiple {{FlowFile}} objects to be created with
> the same millisecond timestamp, making the lineage order unclear. The
> {{lineageStartIndex}} should be specified to an incrementing number to
> provide unambiguous ordering as documented in
> {{FlowFile.getLineageStartIndex()}}.
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