[zeromq-dev] Disconnect notification.

Martin Sustrik sustrik at 250bpm.com
Fri Jul 9 08:56:24 CEST 2010

The heartbeats are an interesting problem. I haven't yet made my mind 
about them. AFAICT the only real use cases for heartbeats is in 
high-availability systems to initiate fail-over.

Btw, have a look at the thread I've started at IETF mailing list. You 
may want to comment:



Brian Granger wrote:
> I plan on creating a new device for heartbeating in 0MQ.  I am focused
> on other 0Mq things right now, but it shouldn't be too difficult given
> the new device API.  The only difference is that a heartbeat device
> would only take 1 socket.
> Cheers,
> Brian
> On Mon, Jul 5, 2010 at 9:39 AM, Sarat K <ksarat at gmail.com> wrote:
>> Hi,
>> I am exploring ZeroMq for one of my application. One of the requirement I
>> have is to get disconnect notification from the ZeroMQ kernel when ever a
>> client terminates the connection/when ever client program crashes I wanted
>> to know about the disconnect in the communication. My application model is;
>> I have a single server that is connected to many clients and server wants to
>> know when ever a client got disconnected.
>> I have come across few examples like using gap_message or registering an
>> error handler using zmq::set_error_handler api. But it seems the interface
>> has been change since these examples were listed, I dont find any thing in
>> the current interface which satisfies my requirement.
>> I greatly appreciate any help here.
>> Thanks
>> sk
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