[jira] [Commented] (NIFI-1877) FirstInFirstOut prioritizer does not work.

["Joseph Witt (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-1877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15373169#comment-15373169 ] 

Joseph Witt commented on NIFI-1877:
-----------------------------------

looks like it has been merged and closed.  Can we close the ticket?

> FirstInFirstOut prioritizer does not work.
> ------------------------------------------
>
>                 Key: NIFI-1877
>                 URL: https://issues.apache.org/jira/browse/NIFI-1877
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>    Affects Versions: 0.6.1
>            Reporter: Matthew Clarke
>            Assignee: Mark Payne
>             Fix For: 1.0.0
>
>
> The FirstInFirstOut (FIFO) prioritizer has no guarantee of actually working on queued FlowFile in a FIFO order.  The reliance on lastQueuedDate or time is not sufficient to guarantee order as FlowFile processed as batched will all have the same exact timestamp.  There is also inconsistency in how processors update lastQueuedDate. If a processor passes a FlowFile through without any change, Date is not updated.  This in turn affects the processing order of FlowFiles. We are finding that more and more NiFI users have specific file processing order needs.



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