We'll be using Python for this presentation, if you dont't have it, check this : https://docs.python.org/3/using/windows.html
Run linux_install.sh where you want to install the software
Run brew install zmq.
If you don't have brew, first run :
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Download first package here : https://github.com/zeromq/pyzmq/downloads
Run pip install pyzmq
Here is a detailed guide for zero-mq : http://zguide.zeromq.org/page:all
Here are the Python docs for zero-mq : https://pyzmq.readthedocs.io/en/latest/api/zmq.html
Here are tutorials for pyzmq : https://learning-0mq-with-pyzmq.readthedocs.io/en/latest/
The goal of this exercise is to use the basic functions of zeroMQ sockets to send and receive a hello world message.
The client creates a socket and connect it to the local host address via the port 5555, then sends 10 "Hello world" request messages and wait each time for a response.
The server creates a socket and binds it to the incoming connection via the port 5555, then waits for messages to arrive, for each message it receives it sends back a hello world response message.
The goal of this exercise is to establish a basic publish/subscribe connection between a server and a client.
The server receives connections via a socket bound to the port 5555. Generates random numbers to be used as topics and sends messages along with those generated topics.
The client creates subscribe type sockets and connect them to the corresponding addresses, then filter the received messages from the publishers with a specific topic, then performs some treatement on the information he received.
Let's suppose we have 3 people : Alice, Bob and Jean.
- Alice sends 20 numbers to the worker
- Bob is the worker
- Jean is the client waiting for the work
The task for Bob : get the square of each number Alice sends and transmit it to Jean.
Bob will take 1 second to compute the square.
Let's suppose we run a pizzeria.
- Several clients order 1 pizza randomly from a given list
- Workers make the pizzas in 5 seconds (they're very good pizzaiolos) and send them back with their price
- The delivery takes 2 seconds
What kind of architecture would you use ? Try to run 4 clients and 2 workers and see what happens
The goal of this exercise is to establish a publish/subscribe connection between subscribers and publishers via a device so that the subscribers won't have to know the addresses of the publishers.
The device will have a frontend and backend sockets, one for the publishers bound to the port 5559, and one for the subscribers bound to the port 55560.
The publishers will connect to the frontend socket and the subscribers to the backend socket. The device will route the messages received on the frontend socket from publishers to the subscribers via the backend socket.