[zeromq-dev] detecting disconnections

Pieter Hintjens ph at imatix.com
Tue Jan 10 04:41:57 CET 2012


By experience, heartbeating should happen every 2-5 seconds. Ymmv.
On Jan 9, 2012 5:56 PM, "Yi Ding" <yi.s.ding at gmail.com> wrote:

> On Mon, Jan 9, 2012 at 3:26 PM, Pieter Hintjens <ph at imatix.com> wrote:
> > On Mon, Jan 9, 2012 at 7:19 AM, Yi Ding <yi.s.ding at gmail.com> wrote:
> >
> >> Would it be difficult to implement in the ZeroMQ framework?  I'm
> >> willing to give it a shot if it doesn't clash with the fundamental
> >> design.  This is pretty useful, especially in the finance industry,
> >> where "cancel on disconnect" has become a necessity.
> >
> > I'd use heartbeating. Some network errors won't show up as
> > disconnections and you need heartbeating in any case.
> >
> > -Pieter
>
> I'm going to have heartbeating as well, but it would also be nice to
> have a disconnect notification.  The reason is that to keep network
> traffic down, heartbeating has to be done on a relatively long time
> horizon (I'm thinking 60 seconds apart) and in financial markets, a
> lot can happen over the period of a second or two.
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