Enterprise messaging

May 19, 20141 like1,483 views

This document discusses decoupling applications and scaling with enterprise messaging. It introduces messaging concepts like producers, consumers, and message brokers. It focuses on the AMQP protocol and RabbitMQ as a messaging implementation. Key points covered include RPC vs messaging styles, decoupling applications, cross-platform communication, and load balancing. The presenter demonstrates a messaging example using Java, CFML, Node.js, and JavaScript producers and consumers communicating via a RabbitMQ broker.

Decouple & Scale with Enterprise
Messaging

WHO AM I?
• Luis Majano - Computer Engineer

• Born in El Salvador ------------------>

• Architecture + Software Design

• CEO of Ortus Solutions

• Manager of the IECFUG
(www.iecfug.com)

• Adobe Community Professional

• Creator of all things Box:  
ColdBox, ContentBox,WireBox....

AGENDA
• RPC Calls

• What is Messaging

• Implementations

• AMQP Protocol

• RabbitMQ

• Nice Demo

• Blocks Request Usage

• Even if you do them Asynchronous, messages only 1 receiver

• Sender always knows about receiver

• Receiver knows about sender

• How can we decouple knowledge?

• How can we apply messaging patterns to our apps?
PROBLEMS WITH RPC

Messaging (EMS)
Producer
Consumer Consumer Consumer
Messaging Bus
Can be
any system or
language
Can be
any system or
language
Doesn’t
care about
consumers
Asynchronous
Does not get a
response

• Producers don’t care about consumers -> Decouple

• Cross platforms-technologies-OS, you name it -> Flexibility

• Event Driven Programming -> Scalability

• Queueing for later delivery

• Asynchronous

• Load balancing

• Hulkyﬁed services
BENEFITS OF MESSAGING

AMQP - www.amqp.org
• Advanced Message Queuing Protocol

• != JMS

• Standard binary protocol

• Exchanges

• Queuing

• Routing

• Reliable

• Secure

• Several Implementations
RabbitMQ
ActiveMQ
Qpid
StormMQ

• AMQP Messaging Broker

• www.rabbitmq.com

• Built on erlang like Couchbase NoSQL

• Extremely fast, reliable and secure

• Languages: c#, erlang, java, python, ruby, node, etc

• Simple concept

• Accepts and forwards messages

• Its like a post box, post ofﬁce and postman

HOW IT WORKS?
Producer
Message

(Body+Routing Key)
Exchange (Bindings via Routing Key)
Body = binary, json,
anything
stock. 
prices
stock. 
run
log. 
error
cluster
Queues are bound to exchanges with patterns
Routing key =
Bindings
Queues

• Direct
• Routing key = queue name

• No mapping or extra ﬂuff just a passthrough

• Similar to JMS

• Topic
• Binding pattern (routing key) is match against the queue name

• Not full regex

• Ex: log.*, log#

• Not like JMSTopics, forget JMS, this is not JMS

• Fanout + More
EXCHANGETYPES

LOAD BALANCING + ACK
Worker
Queue
Consumer
Consumer
Consumer
Messages are
round-robin
to each
consumer
Consumer
need to ack

DEMOTIME
• Java Producer

• Java Consumer

• CFML Consumer

• NodeJS Consumer

• JavaScript Consumer

• CFML Producer

Q & A
• RabbitMQ In Action Book

• http://www.rabbitmq.com

• http://tryrabbitmq.com/

• https://github.com/RabbitMQSimulator/RabbitMQSimulator

• http://koo.ﬁ/blog/2013/02/18/web-messaging-with-rabbitmq-web-stomp-and-
sockjs/

• https://github.com/robharrop/presentations.git

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Enterprise messaging

1. Decouple & Scale with Enterprise Messaging

2. WHO AM I? • Luis Majano - Computer Engineer • Born in El Salvador ------------------> • Architecture + Software Design • CEO of Ortus Solutions • Manager of the IECFUG (www.iecfug.com) • Adobe Community Professional • Creator of all things Box:   ColdBox, ContentBox,WireBox....

3. AGENDA • RPC Calls • What is Messaging • Implementations • AMQP Protocol • RabbitMQ • Nice Demo

4. RPC STYLE CALLS CFC CFC CFC

5. • Blocks Request Usage • Even if you do them Asynchronous, messages only 1 receiver • Sender always knows about receiver • Receiver knows about sender • How can we decouple knowledge? • How can we apply messaging patterns to our apps? PROBLEMS WITH RPC

6. Messaging (EMS) Producer Consumer Consumer Consumer Messaging Bus Can be any system or language Can be any system or language Doesn’t care about consumers Asynchronous Does not get a response

7. • Producers don’t care about consumers -> Decouple • Cross platforms-technologies-OS, you name it -> Flexibility • Event Driven Programming -> Scalability • Queueing for later delivery • Asynchronous • Load balancing • Hulkyﬁed services BENEFITS OF MESSAGING

8. Usages and Patterns Work QueuesMessaging Publish/Subscribe Topics/Routing

9. Protocols JMS AMQP STOMP

10. AMQP - www.amqp.org • Advanced Message Queuing Protocol • != JMS • Standard binary protocol • Exchanges • Queuing • Routing • Reliable • Secure • Several Implementations RabbitMQ ActiveMQ Qpid StormMQ

11. • AMQP Messaging Broker • www.rabbitmq.com • Built on erlang like Couchbase NoSQL • Extremely fast, reliable and secure • Languages: c#, erlang, java, python, ruby, node, etc • Simple concept • Accepts and forwards messages • Its like a post box, post ofﬁce and postman

12. HOW IT WORKS? Producer Message (Body+Routing Key) Exchange (Bindings via Routing Key) Body = binary, json, anything stock.  prices stock.  run log.  error cluster Queues are bound to exchanges with patterns Routing key = Bindings Queues

13. • Direct • Routing key = queue name • No mapping or extra ﬂuff just a passthrough • Similar to JMS • Topic • Binding pattern (routing key) is match against the queue name • Not full regex • Ex: log.*, log# • Not like JMSTopics, forget JMS, this is not JMS • Fanout + More EXCHANGETYPES

14. LOAD BALANCING + ACK Worker Queue Consumer Consumer Consumer Messages are round-robin to each consumer Consumer need to ack

15. PUB-SUB EXAMPLE

16. DEMOTIME • Java Producer • Java Consumer • CFML Consumer • NodeJS Consumer • JavaScript Consumer • CFML Producer

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