[zeromq-dev] Monitor current input queue length

[Pieter Hintjens]

No, DEALER clients won't drop messages. When the buffers at both sides
are full, they will block on sending new messages. You can test this
quite simply. The router will drop outgoing messages (replies) it
cannot deal with, so when sending large volumes, you need to use
credit-based flow control (it's explained in the Guide).

On Thu, Jan 14, 2016 at 4:16 PM, Tom Quarendon
<tom.quarendon at teamwpc.co.uk> wrote:
> Is there any way to get the current input queue length for a socket, or
> determine whether input messages are being dropped?
>
> I’m writing a server that sits on a ROUTER socket and processes messages
> from potentially multiple clients, using multiple threads.
>
>
>
> What I’d really like to know is “is my server coping with demand”?
>
>
>
> I *think* that the symptom of it not (correct me if I’m wrong) is that input
> messages sent by clients will be silently dropped, but I’d quite like to
> find a way of knowing that that has happened.
>
> I’d like to be able to report something like “average input queue length”.
> It might be enough to get an event on the zmq_socket_monitor socket when the
> socket enters and exits such a state.
>
>
>
> I appreciate that what I ask may not make sense, I probably don’t fully
> understand 0MQ. If so, please enlighten me!
>
>
>
> Thanks.
>
>
>
>
> _______________________________________________
> zeromq-dev mailing list
> zeromq-dev at lists.zeromq.org
> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>