[zeromq-dev] Disconnect notification.

[Brian Granger]

On Thu, Jul 8, 2010 at 11:56 PM, Martin Sustrik <sustrik at 250bpm.com> wrote:
> 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.

Yes, that is the usage case that we have.  Even if the heartbeat
doesn't go into 0MQ itself, it would be nice if the device API were
more public so projects could create their own devices.  It is such a
simple API, that this shouldn't be an issue once we figure out the
full device API.

> Btw, have a look at the thread I've started at IETF mailing list. You may
> want to comment:
>
> http://www.ietf.org/mail-archive/web/ietf/current/msg62134.html

Thanks, I will have a look.

Brian

> Martin
>
> 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
>>>
>>>
>>> _______________________________________________
>>> zeromq-dev mailing list
>>> zeromq-dev at lists.zeromq.org
>>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>>>
>>>
>>
>>
>>
>
>



-- 
Brian E. Granger, Ph.D.
Assistant Professor of Physics
Cal Poly State University, San Luis Obispo
bgranger at calpoly.edu
ellisonbg at gmail.com