Matthew Clarke created NIFI-1877:
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Summary: 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
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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