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From Joe Witt <>
Subject Re: Visual Indicator for "Can't run because there are no threads"?
Date Fri, 03 Mar 2017 22:01:39 GMT

That is a good idea and I don't believe there is any existing JIRAs to
do so.  But the idea makes a lot of sense.  Being so thread starved
that processors do not get to run for extended periods of time is
pretty unique.  Makes me think that the flow has processors which are
not honoring the model but are rather more acting like greedy thread
daemons.  That should also be considered.  But even with that said I
could certainly see how it would be helpful to know that a processor
is running less often than it would like due to lack of available
threads rather than just backpressure.


On Fri, Mar 3, 2017 at 4:57 PM, Peter Wicks (pwicks) <> wrote:
> I think everyone was really happy when backpressure finally got super great
> indicators.  Backpressure used to be my #1, “Why isn’t stuff moving?”
> problem.  My latest issue is there are no free threads, sometimes for hours,
> and I don’t notice and start wondering what’s going on.
> Is there anything under consideration for an indicator to show how many
> processors can’t run because there aren’t enough threads available? I can
> create a ticket, wasn’t sure if there was one floating around.

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