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https://issues.apache.org/jira/browse/NIFI-10815?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Handermann resolved NIFI-10815.
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Fix Version/s: 1.19.0
Resolution: Fixed
> Initial internal yield duration not set when Processor created
> --------------------------------------------------------------
>
> Key: NIFI-10815
> URL: https://issues.apache.org/jira/browse/NIFI-10815
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: Paul Grey
> Assignee: Paul Grey
> Priority: Major
> Fix For: 1.19.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> While testing a custom processor with the annotation `TriggerWhenEmpty`,
> noted an issue with the scheduling of the processor.
> The processor setting `Yield Duration` defaults in the UI to `1 sec`. The
> expectation of the `onTrigger()` method is that, if the API
> `ProcessContext.yield()` is called, the processor should not be scheduled for
> the amount of time specified in Yield Duration.
> On adding the custom processor to the canvas and starting it, the processor
> is scheduled continuously. When the processor is stopped and Yield Duration
> is edited, starting the processor results in Yield Duration being honored.
> Reverting the edit (to set Yield Duration to the default) is also honored.
> It is as if the default Yield Duration setting is ignored when the setting
> has never been set.
>
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