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From Andrew Christianson <>
Subject Re: MiNiFi event-based scheduling?
Date Fri, 06 Jan 2017 15:48:55 GMT
Got it. Added this as MINIFI-182 with a link to the wiki for design ideas.

From: Aldrin Piri <>
Sent: Friday, January 6, 2017 10:03:06 AM
To: dev
Subject: Re: MiNiFi event-based scheduling?

Hey Andy,

Your inspection would prove correct and it does not appear we have a JIRA
as of yet either.  If you would be interested in creating one, please do,
otherwise I shall see to it that it gets added.

We are still working to get some of the more foundational framework
components established but certainly can see how this would be helpful.
Definitely should track this so that it isn't lost in the shuffle and the
framework can be refactored to support it.


On Fri, Jan 6, 2017 at 9:56 AM, Andrew Christianson <> wrote:

> We noticed that MiNiFi currently only supports timer-based scheduling.
> Looking at the code, one could set the timer interval to 0, but this would
> result in a hot loop burning 100% of a core. As such, there seems to be no
> way presently to have flow file records processed as soon as incoming
> records populate the queue. Further, it looks like the FlowController code
> is hard-coded against the timer-based scheduling agent, and unfortunately
> there is no obvious way to plug-in an alternative scheduler.
> Are there any near/mid-term plans to implement event-based scheduling?
> -Andy

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