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https://issues.apache.org/jira/browse/NIFI-1877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15339923#comment-15339923
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ASF GitHub Bot commented on NIFI-1877:
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GitHub user markap14 opened a pull request:
https://github.com/apache/nifi/pull/546
NIFI-1877, NIFI-1306: Add fields to FlowFile for FIFO Prioritizer, Ol…
…dest/Newest FlowFile first prioritizers to work property
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/markap14/nifi NIFI-1877
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/nifi/pull/546.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #546
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commit fce80761f886a53ff3ad5450c3524bf8510c9ea7
Author: Mark Payne <[email protected]>
Date: 2016-06-20T17:06:10Z
NIFI-1877, NIFI-1306: Add fields to FlowFile for FIFO Prioritizer,
Oldest/Newest FlowFile first prioritizers to work property
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> 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
> 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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