Ømq & Services @ Chartboost
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Zeromq is a communication library that provides sockets for building scalable distributed applications. It supports common messaging patterns like request-reply, publish-subscribe, and push-pull. An example chat application is presented that uses a pub-sub pattern with a publisher server sending messages to subscribed clients. The server receives messages on a pull socket and forwards them to connected clients via a publish socket. Clients subscribe to the publish socket and can send messages via a push socket. Code samples in Ruby demonstrate setting up the sockets and connections for the server and client components.
![a chat service
# create the context server.rb
context = ZMQ::Context.new(1)
# create the two sockets we need
pub = context.socket(ZMQ::PUB)
pull = context.socket(ZMQ::PULL)
# bind the sockets
pub.bind('tcp://*:1338')
pull.bind('tcp://*:1337')
# wait for input, and forward to all subscribers
while body = pull.recv
payload = JSON.parse(body)
pub.send "#{payload['user']}> #{payload['message'].cyan}"
end](https://image.slidesharecdn.com/slides-zmq-120830142257-phpapp01/85/Omq-Services-Chartboost-26-320.jpg)
![a chat service
# create the context server.rb
context = ZMQ::Context.new(1)
# create the two sockets we need
pub = context.socket(ZMQ::PUB)
pull = context.socket(ZMQ::PULL)
# bind the sockets
pub.bind('tcp://*:1338')
pull.bind('tcp://*:1337')
# wait for input, and forward to all subscribers
while body = pull.recv
payload = JSON.parse(body)
pub.send "#{payload['user']}> #{payload['message'].cyan}"
end](https://image.slidesharecdn.com/slides-zmq-120830142257-phpapp01/85/Omq-Services-Chartboost-27-320.jpg)
![a chat service
# create the context server.rb
context = ZMQ::Context.new(1)
# create the two sockets we need
pub = context.socket(ZMQ::PUB)
pull = context.socket(ZMQ::PULL)
# bind the sockets
pub.bind('tcp://*:1338')
pull.bind('tcp://*:1337')
# wait for input, and forward to all subscribers
while body = pull.recv
payload = JSON.parse(body)
pub.send "#{payload['user']}> #{payload['message'].cyan}"
end](https://image.slidesharecdn.com/slides-zmq-120830142257-phpapp01/85/Omq-Services-Chartboost-28-320.jpg)
![a chat service
# create the context server.rb
context = ZMQ::Context.new(1)
# create the two sockets we need
pub = context.socket(ZMQ::PUB)
pull = context.socket(ZMQ::PULL)
# bind the sockets
pub.bind('tcp://*:1338')
pull.bind('tcp://*:1337')
# wait for input, and forward to all subscribers
while body = pull.recv
payload = JSON.parse(body)
pub.send "#{payload['user']}> #{payload['message'].cyan}"
end](https://image.slidesharecdn.com/slides-zmq-120830142257-phpapp01/85/Omq-Services-Chartboost-29-320.jpg)
![a chat service
# create the context server.rb
context = ZMQ::Context.new(1)
# create the two sockets we need
pub = context.socket(ZMQ::PUB)
pull = context.socket(ZMQ::PULL)
# bind the sockets
pub.bind('tcp://*:1338')
pull.bind('tcp://*:1337')
# wait for input, and forward to all subscribers
while body = pull.recv
payload = JSON.parse(body)
pub.send "#{payload['user']}> #{payload['message'].cyan}"
end](https://image.slidesharecdn.com/slides-zmq-120830142257-phpapp01/85/Omq-Services-Chartboost-30-320.jpg)
Ømq & Services @ Chartboost
- 1. ØM Q & SERVIC ES
- 2. ØM Q & SERVIC ES part i: zeromq
- 3. wtf is zmq?
- 4. “ Zeromq is what bsd sockets may have looked like, if they were designed today.”
- 6. polyglot # C & C++ void *context = zmq_init(1); # ruby context = ZMQ::Context.new(1) # php $context = new ZMQContext(1); # etc.
- 7. atomic & finite
- 8. aging patte rns m ess
- 9. request/reply blah? client server blah!
- 10. request/reply client server client client server client
- 11. request/reply client server client client server client
- 12. request/reply client server client client server client
- 13. push/pull blah! pusher puller
- 14. push/pull STEP 1 STEP 2 STEP 3 node node node node node node node
- 15. push/pull STEP 1 STEP 2 STEP 3 node node node node node node node
- 16. push/pull STEP 1 STEP 2 STEP 3 node node node node node node node
- 17. pub/sub subscriber subscriber publisher subscriber subscriber
- 18. pub/sub subscriber subscriber publisher subscriber subscriber
- 19. pub/sub subscriber subscriber publisher subscriber subscriber
- 20. node irl node client REQ server node PUS USH H P worker PUSH worker PUB subscriber PUB node node subscriber
- 21. examples
- 22. a chat service chat server kenneth sean mark
- 23. a chat service chat server pub pub pub push kenneth sean mark
- 24. a chat service chat server hi! kenneth sean mark
- 25. a chat service chat server hi! kenneth hi! sean hi! mark
- 26. a chat service # create the context server.rb context = ZMQ::Context.new(1) # create the two sockets we need pub = context.socket(ZMQ::PUB) pull = context.socket(ZMQ::PULL) # bind the sockets pub.bind('tcp://*:1338') pull.bind('tcp://*:1337') # wait for input, and forward to all subscribers while body = pull.recv payload = JSON.parse(body) pub.send "#{payload['user']}> #{payload['message'].cyan}" end
- 27. a chat service # create the context server.rb context = ZMQ::Context.new(1) # create the two sockets we need pub = context.socket(ZMQ::PUB) pull = context.socket(ZMQ::PULL) # bind the sockets pub.bind('tcp://*:1338') pull.bind('tcp://*:1337') # wait for input, and forward to all subscribers while body = pull.recv payload = JSON.parse(body) pub.send "#{payload['user']}> #{payload['message'].cyan}" end
- 28. a chat service # create the context server.rb context = ZMQ::Context.new(1) # create the two sockets we need pub = context.socket(ZMQ::PUB) pull = context.socket(ZMQ::PULL) # bind the sockets pub.bind('tcp://*:1338') pull.bind('tcp://*:1337') # wait for input, and forward to all subscribers while body = pull.recv payload = JSON.parse(body) pub.send "#{payload['user']}> #{payload['message'].cyan}" end
- 29. a chat service # create the context server.rb context = ZMQ::Context.new(1) # create the two sockets we need pub = context.socket(ZMQ::PUB) pull = context.socket(ZMQ::PULL) # bind the sockets pub.bind('tcp://*:1338') pull.bind('tcp://*:1337') # wait for input, and forward to all subscribers while body = pull.recv payload = JSON.parse(body) pub.send "#{payload['user']}> #{payload['message'].cyan}" end
- 30. a chat service # create the context server.rb context = ZMQ::Context.new(1) # create the two sockets we need pub = context.socket(ZMQ::PUB) pull = context.socket(ZMQ::PULL) # bind the sockets pub.bind('tcp://*:1338') pull.bind('tcp://*:1337') # wait for input, and forward to all subscribers while body = pull.recv payload = JSON.parse(body) pub.send "#{payload['user']}> #{payload['message'].cyan}" end
- 31. a chat service # create the context client.rb context = ZMQ::Context.new(1) # create the two sockets we need sub = context.socket(ZMQ::SUB) sub.setsockopt(ZMQ::SUBSCRIBE, '') push = context.socket(ZMQ::PUSH) # bind the sockets sub.connect("tcp://#{server}:1338") push.connect("tcp://#{server}:1337") # wait for some input while line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK)) end
- 32. a chat service # create the context client.rb context = ZMQ::Context.new(1) # create the two sockets we need sub = context.socket(ZMQ::SUB) sub.setsockopt(ZMQ::SUBSCRIBE, '') push = context.socket(ZMQ::PUSH) # bind the sockets sub.connect("tcp://#{server}:1338") push.connect("tcp://#{server}:1337") # wait for some input while line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK)) end
- 33. a chat service # create the context client.rb context = ZMQ::Context.new(1) # create the two sockets we need sub = context.socket(ZMQ::SUB) sub.setsockopt(ZMQ::SUBSCRIBE, '') push = context.socket(ZMQ::PUSH) # bind the sockets sub.connect("tcp://#{server}:1338") push.connect("tcp://#{server}:1337") # wait for some input while line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK)) end
- 34. a chat service # create the context client.rb context = ZMQ::Context.new(1) # create the two sockets we need sub = context.socket(ZMQ::SUB) sub.setsockopt(ZMQ::SUBSCRIBE, '') push = context.socket(ZMQ::PUSH) # bind the sockets sub.connect("tcp://#{server}:1338") push.connect("tcp://#{server}:1337") # wait for some input while line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK)) end
- 35. a chat service # create the context client.rb context = ZMQ::Context.new(1) # create the two sockets we need sub = context.socket(ZMQ::SUB) sub.setsockopt(ZMQ::SUBSCRIBE, '') push = context.socket(ZMQ::PUSH) # bind the sockets sub.connect("tcp://#{server}:1338") push.connect("tcp://#{server}:1337") # wait for some input while line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK)) end
- 36. a chat service # create the context client.rb context = ZMQ::Context.new(1) # create the two sockets we need sub = context.socket(ZMQ::SUB) sub.setsockopt(ZMQ::SUBSCRIBE, '') push = context.socket(ZMQ::PUSH) # bind the sockets sub.connect("tcp://#{server}:1338") push.connect("tcp://#{server}:1337") # wait for some input while line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK)) end
- 37. a chat service # create the context client.rb context = ZMQ::Context.new(1) # create the two sockets we need sub = context.socket(ZMQ::SUB) sub.setsockopt(ZMQ::SUBSCRIBE, '') push = context.socket(ZMQ::PUSH) # bind the sockets sub.connect("tcp://#{server}:1338") push.connect("tcp://#{server}:1337") # wait for some input while line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK)) end
- 38. demo $ git clone https://github.com/ ChartBoost/zmq-examples.git $ bundle install $ ruby chat/client.rb
- 39. demo $ git clone https://github.com/ ChartBoost/zmq-examples.git $ bundle install $ ruby chat/client.rb
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