MQ Light is a messaging platform designed for application developers. It provides a simple messaging model and API that is available in many programming languages. MQ Light can be downloaded and used within 5 minutes. It supports both persistent and non-persistent messaging with publish/subscribe capabilities. The messaging model and API are aimed at making it easy for developers to incorporate messaging into applications to enable scalability and responsiveness.

1. © 2015 IBM Corporation
AME-4181: Introducing
MQ Light
Rob Nicholson
Alan Chat

2. Please Note:
• IBM’s statements regarding its plans, directions, and intent are subject to change or
withdrawal without notice at IBM’s sole discretion.
• Information regarding potential future products is intended to outline our general
product direction and it should not be relied on in making a purchasing decision.
• The information mentioned regarding potential future products is not a commitment,
promise, or legal obligation to deliver any material, code or functionality. Information
about potential future products may not be incorporated into any contract.
• The development, release, and timing of any future features or functionality described
for our products remains at our sole discretion.
Performance is based on measurements and projections using standard IBM
benchmarks in a controlled environment. The actual throughput or performance that
any user will experience will vary depending upon many factors, including
considerations such as the amount of multiprogramming in the user’s job stream, the
I/O configuration, the storage configuration, and the workload processed. Therefore,
no assurance can be given that an individual user will achieve results similar to those
stated here.
1

3. Agenda
• High level overview & Positioning.
• MQ Light software
• First Five Minute Experience
• Developer Centric Tooling
• Programming Language Support
• Demo
2

4. IBM Messaging
Deliver Messaging
Backbone for Enterprise
Focus on traditional MQ
values, rock-solid
enterprise-class service,
ease-of-operation, breadth
of platform coverage,
availability, z/OS
exploitation
Enable developers to
build more scalable,
responsive applications
Focus on app use cases,
breadth of languages,
ease-of-deployment, micro
services, integration with
developer frameworks

5. MQ Light : Software and Cloud
• Messaging that application developers
will love to use, helping them make
responsive applications that scale easily
• 3 ways to get it:
• MQ Light software download
• Bluemix service
• Statement of Direction for support in MQ
Version 8.
• Open APIs crafted to feel natural in a
growing range of popular languages
• Tooling that makes modular app
development easy
4

6. The journey that got us here
5
Andy
Developer
Iain
Infrastructure
Guy
I want to execute code
without taxing my
Web app processes
My job is run a
communications service
for my customers’ apps
Some
Thing
My Apps Workers
Messaging
Backbone
My Customers’ Apps

7. The journey that got us here…
6
Ruby
Node.js
Python
C
C++
Java
C#
Perl
Go
Clojure
Lua
Erlang Scala
PHP

8. Use cases
7
Connecting external
systems
Event driven
Worker offload
• Posting video to multiple social
sites after transcoding
• Respond to external events
• Updating external booking app
• Posting updates to twitter
• Image processing
• Text analytics

9. Trend in Cloud Application Architecture
Moving towards…
Delivering global scale applications with
unprecedented agility by de-composing
apps into a microservices architecture
Challenges developing microservices :
Agility come from “2 pizza” teams operating completely
independently, owning the whole technology stack,
deploying on their own schedules, writing services
that will scale when demand dictates
8
Large monolithic
Applications
Moving away from…
Large applications with single develop,
test, deploy cycles using single
technology stacks

10. Deployment Options
9
MQ Light Service
for Bluemix
WebSphere MQ
[open Beta]
“MQ Light”

11. Agenda
• High level overview & Positioning.
• MQ Light software
• First Five Minute Experience
• Developer Centric Tooling
• Programming Language Support
• Demo
10

12. First Five minute experience
• Download and get coding within 5 minutes
• Linux-x86-64, Windows7 64 bit, Mac OSX
• Unzip install
• Unlimited time developer license (unsupported).
• No administration; just code and go
• API client libraries installed using language package manager
• Tutorials and examples in their languages, relevant to actual use
11

13. MQ Light Image DockerHub Registry
12

14. 13
Docker
• A Docker image for MQ Light is now available on Docker
Hub.
• https://registry.hub.docker.com/u/ibmimages/mqlight/
• MQ Light runs inside a container, isolated from the rest of
your system:
• Process isolation – all the processes associated
with MQ Light are run in their own process space,
and can’t see any other processes running on your
server
• Resource isolation – you can limit the amount of
memory and CPU you allocate to a container
• Dependency isolation - all software which MQ
Light depends on is included in the MQ Light image,
except the Linux kernel itself.
Source: If applicable, describe source origin
IBM Presentation Template Full Version
 Docker also helps with fast, reliable deployments in cloud environments
 One command to download and run MQ Light:
– docker run –e LICENSE=accept –P ibmimages/mqlight

15. Tooling to assist development
• Used to answer questions like :
• Where did this message come from?
• Where did that message go?
• What messages has my app consumed?
14

16. Programming Language Support.
A. Simple Messaging Model
B. Idiomatic clients in fully supported languages
• IBM Design Thinking applied here.
C.Compatibility with open source AMQP 1.0 clients for other
languages.
• Apache Qpid Proton
15

17. Programming Language Support.
A. Simple Messaging Model
B. Idiomatic clients in fully supported languages
• IBM Design Thinking applied here.
C.Compatibility with open source AMQP 1.0 clients for other
languages.
• Apache Qpid Proton
16

18. 17
MQ Light Messaging Model – Send Messages
Applications send messages to a topic.
A topic is an address in the topic space
either flat or arranged hierarchically.
1. Send (‘/test/a’, “Hello”);
2. Send (‘/test/a’, “World!”);
Topic Address Space
Sender application

19. 18
MQ Light Messaging Model – Simple Receive
•Applications receive messages by creating a destination with a pattern
which matches the topics they are interested in.
•Pattern matching scheme based on WMQ.
1. Send (‘/test/a’, “Hello”);
2. Send (‘/test/a’, “World!”);
1. Hello
2. World!
Topic Address Space
Sender application
DESTINATION
Pattern=/test/a

20. 19
MQ Light Messaging Model – Pub/Sub
•Multiple destinations can be created which match the same topic
•Pub/Sub style.
DESTINATION
1. Send (‘/test/a’, “Hello”);
2. Send (‘/test/a’, “World!”);
1. Hello
2. World!
1. Hello
2. World!
Topic Address Space
Sender application
DESTINATION
Pattern=/test/a
Pattern=/test/#
Client 1
Client 2

21. 20
MQ Light Messaging Model – Persistent destinations
•Destinations persist for a defined “time to live” after receiver detaches.
1. Send (‘/test/a’, “Hello”);
2. Send (‘/test/a’, “World!”);
Topic Address Space
Sender application
Hello
World!
DESTINATION
Pattern=/test/a
Disconnected client

22. 21
MQ Light Messaging Model – Sharing
•Clients attaching to the same topic pattern and share name attach to the
same shared destination.
DESTINATION1. Send (‘/test/a’, “Hello”);
2. Send (‘/test/a’, “World!”);
1. Hello
2. World!
1. Hello
2. World!
SHARING
Topic Address Space
Sender application
DESTINATION
Pattern=/test/#
Pattern=/test/#
Share=myshare
Client 1
Client 2
Client 3

23. 22
MQ Light Messaging Model – Client takeover
1. Send (‘/test/a’, “Hello”);
Hello
Topic Address Space
Sender application
DESTINATION
Pattern=/test/#
Client 1
World!
Client 1
2. Send (‘/test/a’, “World!”);
•Applications connect to MQ Light service specify (optional) client ID.
•Re-using the same client ID pre-empts the original connection.
•Ideal for worker takeover in the cloud.

24. MQ Light Messaging Model
• Messages
• Payload is either Text or Binary.
• Content-type is used by clients to transfer JSON
• Per message time to live.
• Message delivery model
• At most once delivery (QoS 0)
• At least once delivery (QoS 1)
• Acknowledge & Reject messages
• Control over the number of unacknowledged messages
delivered. (link credit)
23

25. Programming Language Support.
A. Simple Messaging Model
B. Idiomatic clients in fully supported languages
• IBM Design Thinking applied here.
C.Compatibility with open source AMQP 1.0 clients for other
languages.
• Apache Qpid Proton
24

26. Programming languages
Language Availability Notes
Node.js Supported IBM Client.
Ruby IBM Client in Beta
Java (Non Blocking) IBM Client in Beta
Python IBM Client in Beta
PHP Qpid Proton
Scala Can use Java non
Blocking client.
Forum users report this
working.
C/C++ Qpid Proton
Perl Qpid Proton
25

27. MQ Light Node.JS API
• Installable from NPM
• Fully non blocking – Node.JS style
• Fluent programming style - wrappable into promises.
• Focussed on code simplicity.
• Client seamlessly retries across cloud endpoints
26
# Receive:
var mqlight = require('mqlight');
var recvClient = mqlight.createClient({service: 'amqp://localhost'});
recvClient.on('started', function() {
recvClient.subscribe('news/technology');
recvClient.on('message', function(data, delivery) {
console.log(data);
});
});
# Send:
var mqlight = require('mqlight');
var sendClient = mqlight.createClient({service: 'amqp://localhost'});
sendClient.on('started', function() {
sendClient.send('news/technology', 'Hello World!');
});

28. MQ Light Ruby API (Beta)
• Installable from rubygems.org
• Synchronous/blocking client.
• Bluemix connection support
• Backlog
• Auto reconnect.
• Asynchronous non blocking
• TLS
27
# Receive:
require 'mqlight'
client = Mqlight::BlockingClient.new('amqp://localhost')
client.subscribe('news/technology')
delivery = client.receive('news/technology')
puts delivery.data
# Send:
require 'mqlight'
client = Mqlight::BlockingClient.new('amqp://localhost')
client.send('news/technology', 'Hello World!')

29. MQ Light Python API (Beta)
• Installable from rubygems.org
• Non blocking
• Client seemlessly retries across cloud endpoints
• Backlog
• TLS
28
# Receive:
require 'mqlight'
client = Mqlight::BlockingClient.new('amqp://localhost')
client.subscribe('news/technology')
delivery = client.receive('news/technology')
puts delivery.data
# Send:
require 'mqlight'
client = Mqlight::BlockingClient.new('amqp://localhost')
client.send('news/technology', 'Hello World!')

30. MQ Light Non Blocking Java API (beta)
• Installable using Maven
• Code is opensource on github.
• Non blocking
• Client seemlessly retries across cloud endpoints
• Backlog
• TLS
29
void send() {
NonBlockingClient.create("amqp://localhost", new NonBlockingClientAdapter<Void>() {
public void onStarted(NonBlockingClient client, Void context) {
client.send("news/technology", "Hello World!", null);
}
}, null);
}
void receive() {
NonBlockingClient.create("amqp://localhost", new NonBlockingClientAdapter<Void>() {
public void onStarted(NonBlockingClient client, Void context) {
client.subscribe("news/technology", new DestinationAdapter<Void>() {
public void onMessage(NonBlockingClient client, Void context, Delivery delivery) {
if (delivery.getType() == Delivery.Type.STRING)
System.out.println(((StringDelivery)delivery).getData());
}
}, null, null);
}
}, null);
}

31. Programming Language Support.
A. Simple Messaging Model
B. Idiomatic clients in fully supported languages
• IBM Design Thinking applied here.
C.Compatibility with open source AMQP 1.0 clients for other
languages.
• Apache Qpid Proton
30

32. Agenda
• High level overview & Positioning.
• MQ Light software
• First Five Minute Experience
• Developer Centric Tooling
• Programming Language Support
• Demo
31

33. Summary
• MQ Light : https://developer.ibm.com/messaging/mq-light/
• MQ Light for Bluemix : www.bluemix.net
• Messaging designed for developers to create responsive and
scalable applications
• Simplified messaging API
• Easy to acquire and incorporate into applications
• Development focused tooling
• Range of application deployment options
• MQ Light
• IBM MQ [Statement of Direction]
• MQ Light cloud service in BlueMix
32

34. IBM MQ Sessions this week
10:30 - 12:00 13:15 - 14:15 14:30 - 15:30 16:00 - 17:00 17:15 - 18:15
Monday
9:00 - 10:00 10:30 - 11:30 11:45 - 12:45 14:00 - 15:00 15:15 - 16:15 16:45 - 17:45
TuesdayWednesdayThursday

35. For Additional Information
• IBM Training
• http://www.ibm.com/training
• IBM WebSphere
• http://www.ibm.com/software/websphere/
• http://www.ibm.com/software/products/ibm-mq
• IBM developerWorks
• http://www.ibm.com/developerworks/websphere
• https://www.ibm.com/developerworks/community/blogs/messaging
• WebSphere forums and community
• http://www.ibm.com/developerworks/websphere/community/

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