Hello Koji,

I don't see any OOM errors in the logs, I'll keep an eye on the avail.
thread count.  Thank you.

Regards,
Dan

On Mon, Jan 29, 2018 at 10:49 PM Koji Kawamura <ijokaruma...@gmail.com>
wrote:

> Hi Dan,
>
> If all available Timer Driven Thread are being used (or hang
> unexpectedly for some reason), then no processor can be scheduled.
> The number at the left top the NiFi UI under the NiFi logo shows the
> number of threads currently working.
> If you see something more than 0, then I'd recommend to take some
> thread dumps to figure out what running thread is doing.
>
> Other than that, I've encountered unexpected behavior with a NiFi
> cluster if a node encountered OutOfMemory error.
> The cluster started to behave incorrectly as it can not replicate REST
> requests among nodes. I'd search any ERR logs in nifi-app.log.
>
> Thanks,
> Koji
>
> On Tue, Jan 30, 2018 at 1:10 PM, dan young <danoyo...@gmail.com> wrote:
> > Hello,
> >
> > We're running a secure 3 node 1.4 cluster.  Has anyone seen any behaviour
> > where the cluster just stops scheduling the running of flowfiles/tasks?
> > i.e. cron/timer, just don't run when they're suppose to.  I've tried to
> stop
> > and restart a processor that is say set to run ever 900sec, but nothing
> > happens.  Then only thing I can do is to cycle through restarting each
> node
> > in the cluster and then we're good for a few days....this is something
> that
> > just started happening and has occurred twice in the last week or so.....
> > Anything I should keep an eye out for or look for in the logs?
> >
> > Regards,
> >
> > Dan
>

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