zeromq Questions
5
Solved
When you use the simple ZeroMQ REQ/REP pattern you depend on a fixed send()->recv() / recv()->send() sequence.
As this article describes you get into trouble when a participant disconnects in the m...
2
I've been following this (https://developer.ibm.com/tutorials/se-distributed-apps-zeromq-part2/) tutorial for setting up a ZeroMQ client/server setup which uses CurveZMQ to encrypt messages. The co...
4
Solved
I just got started with ZMQ. I am designing an app whose workflow is:
one of many clients (who have random PULL addresses) PUSH a request to a server at 5555
the server is forever waiting for cli...
1
I tried to monitor the number of open Unix socket files with lsof -U | wc -l while I executed this code:
>>> import zmq
# 1375 Unix socket files
>>> c = zmq.Context()
# 1377 Unix...
1
Solved
I know how to send a string message from c++ to python via zeromq.
Here's the code for sending a string message I know :
C++ sender code :
void *context = zmq_ctx_new();
void *publisher = zmq_s...
5
Solved
I've got a C++ application that is using ZeroMQ for some messaging. But it also has to provide a SGCI connection for an AJAX / Comet based web service.
For this I need a normal TCP socket. I could...
Mab asked 10/10, 2012 at 21:53
1
I have a number of nodes that will use a secondary service to be informed about the address of each other. I want to be able to publish information so as all the other nodes can hear it. Using an X...
2
Solved
Can someone point me to an example of a REQ/REP non-blocking ZeroMQ (0MQ) with Python bindings? Perhaps my understanding of ZMQ is faulty but I couldn't find an example online.
I have a server in ...
Vicissitude asked 18/9, 2012 at 1:16
2
Solved
In the past I’ve used the Visual Studio solution files to build zeromq (libzmq) on Windows. I just noticed that the Visual Studio solutions have been deprecated because they are too difficult to ma...
Exurbia asked 28/8, 2018 at 11:17
2
My goal is to send images and data string from a RPi (server) to a client. I use send_json(data) where the data is a dict {'img': img_ls, 'telemetry':'0.01, 320, -10'}. img_ls is the image converte...
1
I'm using Symfony2 to build a simple chat application.
I decided to use the GeniusesOfSymfony/WebSocketBundle for my WebSocket, which is powered by Ratchet :
https://github.com/GeniusesOfSymfony/...
3
I am contemplating inter-process sharing of custom objects. My current implementation uses ZeroMQ where the objects are packed into a message and sent from process A to process B.
I am wondering ...
Stalinist asked 23/8, 2018 at 8:38
1
Solved
For sending string data, following codes works :
context = zmq.Context()
socket = context.socket(zmq.PUB)
socket.bind("tcp://*:5667")
socket.send_string("my string data")
For sending image(ndar...
1
According to the ZeroMQ documentation a pub socket is supposed to drop messages once the number of queued messages reaches the high-water mark.
This doesn't seem to work in the following example (...
3
Solved
I need to transfer financical data between two process (currently c++ and c#, in future c++ and c++ on Linux). It's live quotes - something like 1 100, 1 100.1, 2 101.2 end so on.). Data has well-d...
Cb asked 5/5, 2013 at 18:50
2
Solved
Introducing zmq into my Electron app has proved to be onerous:
01:33:03 {master %=} rgbkrk@puter ~/code/jupyter-sidecar$ electron .
dyld: lazy symbol binding failed: Symbol not found: __ZN2v89Sign...
2
Solved
It seems as though the XPUB/XSUB socket types have a serious flaw that is difficult to work around:
This is my implementation of that center node:
#include <zmq.hpp>
int main()
{
zmq::c...
3
Solved
I'm just starting to learn how to work with zeromq libraries and using them in different C++ projects.
The sample code that I wrote (actually copied from there tutorials)is this:
// file: main.cpp...
3
Solved
I want to limit the amount of memory consumed by my ZeroMQ message queues in a Python application. I know that setting the high-water mark will limit the amount that will be queued on the sender si...
2
Solved
I am using zmq req/rep pattern communication. The implementation is pretty simple, the req sends some data and waits on recv. The rep receives the data, process and reply back.
//REQ
zmq_connect
z...
2
Solved
I have a container that it has several ports, I want to have access to one of its ports (9001) outside of this docker as remote.
My docker IP is: 172.17.0.1
My container IP is: 172.19.0.23
My ser...
Garfish asked 10/7, 2018 at 8:4
1
Solved
I'm using C++ binding for ZMQ (cppzmq) and I'm trying to set the connection timeout of TCP socket using a .setsockopt()-method like this:
int connectTimeout = 1000;
socket.setsockopt(ZMQ_CONNECT_T...
3
I am trying to use the ZeroMQ rep/req and cannot figure out how to handle server side errors. Look at the code from here:
socket.bind("tcp://*:%s" % port)
while True:
# Wait for next request fro...
3
Solved
Who has to manages the persistent in the ZeroMQ?
When we use the ZeroMQ clients in Python language, what are the plug-ins/modules available to manage the persistent?
I would like to know the patt...
Sure asked 30/10, 2010 at 16:58
2
Solved
N-proxy-N Pub-Sub
Similar to the question N to N async pattern in ZeroMQ?, but which unfortunately never received an answer with working code.
I'm trying to implement Pub-Sub network as described...
Izak asked 26/3, 2018 at 9:31
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