In some Node.js scripts that I have written, I notice that even if the last line is a synchronous call, sometimes it doesn't complete before Node.js exits. I have never seen a console.log statemen...

I have two applications, a C++ server, and a C# WPF UI. The C++ code takes requests (from anywhere/anyone) via a ZeroMQ messaging [PUB/SUB] service. I use my C# code for back testing and to create ...

I am having trouble figuring out how to subscribe to a particularly "channel" with ZMQ with regard to its pub/sub functionality. Here is the publisher: var zmq = require('zmq'); var pub = zmq.soc...

I have a Dealer socket in client side, who is connected to Router socket in server side. I often see Heartbeating mechanism : the server regularly send message to the client in order that client k...

I have been reading about ZeroMQ more specifically about NetMQ and almost every Pub/Sub examples I saw used to Bind the Publisher socket and then the Subscriber socket connects to the other. So i'...

I am having trouble installing the PyZMP dependency for iPython. I have tried a number of things such as using pip/brew, but ended up installing the package manually using this answer. Now, pip li...

I'm building zeromq library for iOS using this method: https://github.com/drewcrawford/libzmq-ios The build log looks fine except of some warnings that appear 3 times: CC crypto_scalarmult/curve...

ZeroMQs Pub/Sub pattern makes it easy for the server to reply to the right client. However, it is less obvious how to handle communication that cannot be resolved within two steps, i.e. protocols w...

I want major difference between ZeroMQ and socket.io Performance. ( Is it faster? Scalable? ) Applications. ( Is it used for real time services? ) Browsers Support. ( Which browsers are support...

Trying to do an npm install on mac-osx of github project. Don't see pkg-config in packages.json why would node-gyp expect this? It seems like the node-gyp should have incldued pkg-config. I thought...

I have three applications that are communicating via ZeroMQ all performing different operations. The different applications are as follows: The first is a C++ application which is an engine for "...

There are some interesting descriptions of writing language kernels to allow a language previously unsupported by IPython to be executed from IPython. In all cases, the kernel creation step involv...

Can you please tell me how you can use to send messages ZeroMQ between two programs located on different servers using some common socket? With all local sockets program works, but I do not underst...

I have an application in which I'd like to send part of its mutable state over the network to another machine (there will be a cluster of those machines) to do some CPU-intensive computations on it...

I hit Ctrl-C while running a PAIR pattern (non-blocking client servers) connection with ZMQ. Later when I tried running the REQ-REP (blocking client single server connection) pattern, I keep gettin...

I read the followings: DDS vs AMQP vs ZeroMQ http://mnb.ociweb.com/mnb/MiddlewareNewsBrief-201004.html And it seems that there is no benfit using DDS instead of zmq: the latency of zmq ...

I have three applications talking to each other. A websocket server (1) that accepts connections from browsers, parses url to see what data is required, serves it to client if it has the data in me...

I used Dockerfile successfully built a container. However, my code doesn't work in the container. It does work if I install all the packages manually. I'm assuming I messed up something that cause ...

While reading the zeromq guide, I came across client code which sends 100k requests in a loop, and then receives the reply in a second loop. #include "../include/mdp.h" #include <time.h> i...

I am wondering how to shutdown JeroMQ properly, so far I know three methods that all have their pro and cons and I have no clue which one is the best. The situation: Thread A: owns context, shal...

I't trying to get a python application running on Windows and I get an ZMQError: Protocol not supported which is because ipc is not supported on windows. From what I have read the change from ipc t...

redis supports pub-sub zmq also supports pub-sub via a message broker What would be the architectural pros\cons for choosing between them? I'm aiming at points which are beyond the obvious use-cas...

I have found a similar question, ZeroMQ: HWM on PUSH does not work, but it couldn't solve my problem. I want to control the number of messages that the push socket queues, but it doesn't work and ...

Would have loved to use Amazon SQS if it provided some semblance of FIFO access, but the sequence seems to completely random. Is there something that would provide me FIFO queuing as-a-cloud-servi...

I am trying to use zero-mq.My requirement is very simple.I want to be able to communicate between two peers in a network.I came across this program in the examples in the book. $ pub_server.py im...