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https://issues.apache.org/jira/browse/NIFI-53?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14274058#comment-14274058
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Mark Payne commented on NIFI-53:
--------------------------------

Because we don't currently check this, the problem presents itself as having a 
Processor run continually, each time asking for a FlowFile and getting back 
'null'. As a result, the number of tasks performed spikes very high without the 
Processor able to really do anything, but the "Tasks" count shown on the 
Processor becomes very high.

> Framework should not trigger components to run if input queue has only 
> penalized FlowFiles
> ------------------------------------------------------------------------------------------
>
>                 Key: NIFI-53
>                 URL: https://issues.apache.org/jira/browse/NIFI-53
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>            Reporter: Joseph Witt
>
> Framework should avoid calling on trigger in the event all items in the input 
> queue are penalized (this is for those cases when checking 'do you have data 
> to process')



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