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https://issues.apache.org/jira/browse/NIFI-4805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16653767#comment-16653767
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Peter Wicks commented on NIFI-4805:
-----------------------------------

[~bdesert] I don't disagree that there is a strong use case for a Retry 
processor. The funny thing is, in my case the FlowFile hasn't even failed... I 
just really want to delay it before it runs.

I think there is a need for two distinct processors. One that lets you penalize 
any FlowFile, in line with what I've written for the PenalizeFlowFile, and a 
Retry processor (NIFI-3792?).

If nobody minds, I'll link NIFI-3792 to this ticket, and add the Retry 
processor as well. [~bdesert], I think you've provided a really good list of 
requirements, and I'll work from that.

> allow delayed transfer
> ----------------------
>
>                 Key: NIFI-4805
>                 URL: https://issues.apache.org/jira/browse/NIFI-4805
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>            Reporter: Martin Mucha
>            Assignee: Peter Wicks
>            Priority: Minor
>         Attachments: retry.xml
>
>
> Nifi has concept of penalization, but this penalization has fixed delay, and 
> there isn't way how to change it dynamically. 
> If we want to implement retry flow, where FlowFile flows in loop, we can 
> either lower performance of Processor via yielding it, or we can do active 
> waiting. And this is actually recommended as a correct way how to do that.
> It seems, that we can easily implement better RetryProcessor, all we missing 
> is `session.penalize` which accepts `penalizationPeriod`. Processor then can 
> gradually prolong waiting time after each failure.
>  
> Would it be possible to make such method visible?



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