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https://issues.apache.org/jira/browse/NIFI-473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15670868#comment-15670868
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Mark Payne commented on NIFI-473:
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[~rickysaltzer] This is a fairly old ticket, but I wanted to revisit, as in 1.1 
we now have the ability to separate the notions of CRON scheduling and Primary 
Node. In the case that you are describing here, I would recommend that perhaps 
the proper solution is to use CRON scheduling, rather than timer-driven 
scheduling. Do you think that's a reasonable approach, or do you feel like 
something like this is still necessary?

Thanks
-Mark


> Add rolling restart / refresh 
> ------------------------------
>
>                 Key: NIFI-473
>                 URL: https://issues.apache.org/jira/browse/NIFI-473
>             Project: Apache NiFi
>          Issue Type: New Feature
>            Reporter: Ricky Saltzer
>
> For long running instances and clusters, it's sometimes required to switch 
> out custom NARs for new or updated processors. Currently, when you restart a 
> NiFI instance, processors that are on a timer driven schedule (e.g. 1 day, 1 
> week) are executed, regardless of their schedule. This can be problematic if 
> you're dealing with datasets that shouldn't be pulled out of schedule. 
> It would be nice to have a rolling restart, or a refresh ability to load in 
> new NARs without re-executing all of the processors on the system. We could 
> take this one step further and have all processor schedules persisted 
> somewhere, and is read on start up.  



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