Ømq & services @ chartboost

ØMQ &SERVICES

ØMQ &SERVICES

part i: zeromq

wtf is zmq?

Zeromq is what bsd sockets may have looked like, if they were designed today.”

“

Zeromq is a communication library.

# C & C++void *context = zmq_init(1);

# rubycontext = ZMQ::Context.new(1)

# php$context = new ZMQContext(1);

# etc.

polyglot

atomic

finite&

messaging patterns

request/reply

client server

blah?

blah!

request/reply

server

clientserver

client

client

client

request/reply

server

clientserver

client

client

client

request/reply

server

clientserver

client

client

client

push/pull

pusher pullerblah!

push/pull

STEP 2

node

node

node

node

STEP 1 STEP 3

node

node

node

node

push/pull

STEP 2

node

node

node

node

STEP 1 STEP 3

node

node

node

push/pull

STEP 2

node

node

node

node

STEP 1 STEP 3

node

node

pub/sub

subscriber

subscriber

subscriber

subscriber

publisher

pub/sub

subscriber

subscriber

subscriber

subscriber

publisher

pub/sub

subscriber

subscriber

subscriber

subscriber

publisher

irl

client server

subscriber

worker worker subscriber

REQ

PUSHPUSH

PUSH PUB

PUB

node

node

node

node node

examples

a chat service

chat server

seankenneth mark

a chat service

chat server

seankenneth mark

pub pub pub

push

a chat service

chat server

seankenneth markhi!hi!hi!

a chat service

chat server

seankenneth markhi!hi!hi!

a chat service# create the contextcontext = ZMQ::Context.new(1)

# create the two sockets we needpub = context.socket(ZMQ::PUB)pull = context.socket(ZMQ::PULL)

# bind the socketspub.bind('tcp://*:1338')pull.bind('tcp://*:1337')

# wait for input, and forward to all subscriberswhile body = pull.recv payload = JSON.parse(body) pub.send "#{payload['user']}> #{payload['message'].cyan}"end

server.rb

a chat service# create the contextcontext = ZMQ::Context.new(1)

# create the two sockets we needpub = context.socket(ZMQ::PUB)pull = context.socket(ZMQ::PULL)

# bind the socketspub.bind('tcp://*:1338')pull.bind('tcp://*:1337')

# wait for input, and forward to all subscriberswhile body = pull.recv payload = JSON.parse(body) pub.send "#{payload['user']}> #{payload['message'].cyan}"end

server.rb

a chat service# create the contextcontext = ZMQ::Context.new(1)

# create the two sockets we needpub = context.socket(ZMQ::PUB)pull = context.socket(ZMQ::PULL)

# bind the socketspub.bind('tcp://*:1338')pull.bind('tcp://*:1337')

# wait for input, and forward to all subscriberswhile body = pull.recv payload = JSON.parse(body) pub.send "#{payload['user']}> #{payload['message'].cyan}"end

server.rb

a chat service# create the contextcontext = ZMQ::Context.new(1)

# create the two sockets we needpub = context.socket(ZMQ::PUB)pull = context.socket(ZMQ::PULL)

# bind the socketspub.bind('tcp://*:1338')pull.bind('tcp://*:1337')

# wait for input, and forward to all subscriberswhile body = pull.recv payload = JSON.parse(body) pub.send "#{payload['user']}> #{payload['message'].cyan}"end

server.rb

a chat service# create the contextcontext = ZMQ::Context.new(1)

# create the two sockets we needpub = context.socket(ZMQ::PUB)pull = context.socket(ZMQ::PULL)

# bind the socketspub.bind('tcp://*:1338')pull.bind('tcp://*:1337')

# wait for input, and forward to all subscriberswhile body = pull.recv payload = JSON.parse(body) pub.send "#{payload['user']}> #{payload['message'].cyan}"end

server.rb

a chat service# create the contextcontext = ZMQ::Context.new(1)

# create the two sockets we needsub = context.socket(ZMQ::SUB)sub.setsockopt(ZMQ::SUBSCRIBE, '')push = context.socket(ZMQ::PUSH)

# bind the socketssub.connect("tcp://#{server}:1338")push.connect("tcp://#{server}:1337")

# wait for some inputwhile line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK))end

client.rb

a chat service# create the contextcontext = ZMQ::Context.new(1)

# create the two sockets we needsub = context.socket(ZMQ::SUB)sub.setsockopt(ZMQ::SUBSCRIBE, '')push = context.socket(ZMQ::PUSH)

# bind the socketssub.connect("tcp://#{server}:1338")push.connect("tcp://#{server}:1337")

# wait for some inputwhile line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK))end

client.rb

a chat service# create the contextcontext = ZMQ::Context.new(1)

# create the two sockets we needsub = context.socket(ZMQ::SUB)sub.setsockopt(ZMQ::SUBSCRIBE, '')push = context.socket(ZMQ::PUSH)

# bind the socketssub.connect("tcp://#{server}:1338")push.connect("tcp://#{server}:1337")

# wait for some inputwhile line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK))end

client.rb

a chat service# create the contextcontext = ZMQ::Context.new(1)

# create the two sockets we needsub = context.socket(ZMQ::SUB)sub.setsockopt(ZMQ::SUBSCRIBE, '')push = context.socket(ZMQ::PUSH)

# bind the socketssub.connect("tcp://#{server}:1338")push.connect("tcp://#{server}:1337")

# wait for some inputwhile line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK))end

client.rb

a chat service# create the contextcontext = ZMQ::Context.new(1)

# create the two sockets we needsub = context.socket(ZMQ::SUB)sub.setsockopt(ZMQ::SUBSCRIBE, '')push = context.socket(ZMQ::PUSH)

# bind the socketssub.connect("tcp://#{server}:1338")push.connect("tcp://#{server}:1337")

# wait for some inputwhile line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK))end

client.rb

a chat service# create the contextcontext = ZMQ::Context.new(1)

# create the two sockets we needsub = context.socket(ZMQ::SUB)sub.setsockopt(ZMQ::SUBSCRIBE, '')push = context.socket(ZMQ::PUSH)

# bind the socketssub.connect("tcp://#{server}:1338")push.connect("tcp://#{server}:1337")

# wait for some inputwhile line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK))end

client.rb

a chat service# create the contextcontext = ZMQ::Context.new(1)

# create the two sockets we needsub = context.socket(ZMQ::SUB)sub.setsockopt(ZMQ::SUBSCRIBE, '')push = context.socket(ZMQ::PUSH)

# bind the socketssub.connect("tcp://#{server}:1338")push.connect("tcp://#{server}:1337")

# wait for some inputwhile line = gets.chomp push.send(line) unless line == '' # dump buffered messages puts buffered_msg while (buffered_msg = sub.recv(ZMQ::NOBLOCK))end

client.rb

demo$ git clone https://github.com/ \ ChartBoost/zmq-examples.git

$ bundle install

$ ruby chat/client.rb

demo$ git clone https://github.com/ \ ChartBoost/zmq-examples.git

$ bundle install

$ ruby chat/client.rb

thanks@KOB — KENNETH@CHARTBOOST.COM