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https://issues.apache.org/jira/browse/NIFI-8069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Handermann reassigned NIFI-8069:
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Assignee: David Handermann
> Keep processors invalid while referenced Controller Services are Enabling
> -------------------------------------------------------------------------
>
> Key: NIFI-8069
> URL: https://issues.apache.org/jira/browse/NIFI-8069
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Matt Burgess
> Assignee: David Handermann
> Priority: Major
>
> Historically, we have allowed processors to be marked as valid while any
> referenced Controller Services are enabling. This was to avoid a race
> condition where the processor was being validated while its controller
> services were still enabling at startup, which would cause the processor to
> be stopped even after the CS enabled. However this means a processor can be
> started and will immediately fail at runtime (not at validation time) if the
> CS has not finished enabling.
> Since then there have been improvements to the startup sequence. Now, if you
> start an invalid processor, the processor still knows that it's meant to be
> running and as soon as it becomes valid, it will start. This Jira proposes to
> mark a processor invalid if the CS is enabling.
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