session A35: from WebSphere Technical University

1. A35: IBM MQ Light
Robert Nicholson, STSM for Application Messaging
@nicholsr #mqlight

2. © 2014 IBM Corporation
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
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The information mentioned regarding potential future products is not a commitment, promise, or
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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.
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3. © 2014 IBM Corporation
IBM Messaging portfolio
3
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
Capture Big Data from Mobile and Internet of
Things
Focus on Internet-scale events, m2m device enablement,
security and privacy, feed into real-time analytics, location-based
notifications
Enable developers to build more scalable,
responsive applications
Focus on application developer use cases, breadth of language
support, no administration, ease-of-deployment, lightweight &
powerful API, as software or a cloud service

4. © 2014 IBM Corporation
MQ Light : Software and Cloud
 Messaging that application developers will
love to use, helping them make responsive
applications that scale easily
 Available as software download or full
cloud service in Bluemix.
– Statement of Direction for support in MQ Version 8.
 Trivial to get started :
just download, unzip and start coding
 Open APIs crafted to feel natural in a
growing range of popular languages
 Tooling that makes modular app
development easy
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5. © 2014 IBM Corporation
The journey that got us here…
 Previous developer / IT relationship
– Driven by centrally controlled common standards
– Carefully planned projects delivering core business systems
– Focused on re-using existing skills and investments
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Share,
re-use and
save!
I need to access
some messaging
services. I own
the apps.

6. © 2014 IBM Corporation
The journey that got us here…
 Evolving developer / IT relationship
– Driven by business sponsor demands
– Developers download and use the tools to get the job done
– Focused on trying new apps and concepts in the market
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7. © 2014 IBM Corporation
The journey that got us here…
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Ruby
Python
Node.js
C
Java
C++
C#
Perl
Go
Clojure
Lua
Erlang Scala
PHP

8. © 2014 IBM Corporation
Use Cases
8
Worker Offload
Intensive work offloaded and distributed
amongst worker processes to be performed
asynchronously
- Processing images or videos
- Performing text analytics
Event Driven
Take one or more actions when something
interesting happens
- Email logs and update dashboards when build finishes
- Upload videos once finished transcoding

9. © 2014 IBM Corporation
Use Cases
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Delayed Processing
Schedule a task to happen at a specific point in
time
- Run in detailed reports when app use is low
- Generate end of day summary
3rd Party Integration
Ensure applications remain responsive even when
3rd party system are not available or responding
fast enough
- Updating existing CRM system
- Booking appointment

10. © 2014 IBM Corporation
Making applications more responsive and easier to scale
User Waits
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11. © 2014 IBM Corporation
Making applications more responsive and easier to scale
User Waits
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12. © 2014 IBM Corporation
Easy to get going
 Download and get coding within 5 minutes
 No administration; just code and go
 Node API client libraries installed using npm package manager
 Tutorials and examples in their languages, relevant to actual use
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13. © 2014 IBM Corporation
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?
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14. …
© 2014 IBM Corporation
Does not restrict language choice
 Polyglot language
 API crafted to feel native within the language
 New clients can be created by developers
– Clients based on Open source Apache Qpid Proton
 Using open protocol (AMQP 1.0) to build community around messaging clients
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Node.js
Python
PHP
Java*
Ruby
Open
protocol
*JMS 1.1 in Bluemix today

15. MQ Light Messaging Model – Send Messages
Sender application
1. Send (‘/test/a’, “Hello”);
2. Send (‘/test/a’, “World!”);
Topic Address Space
Applications send messages to a topic.
A topic is an address in the topic space
either flat or arranged hierarchically.
15 © 2014 IBM Corporation

16. MQ Light Messaging Model – Simple Receive
Sender application
1. Send (‘/test/a’, “Hello”);
2. Send (‘/test/a’, “World!”);
1. Hello
2. World!
Topic Address Space
DESTINATION
Pattern=/test/a
•Applications receive messages by creating a destination with a pattern
which matches the topics they are interested in.
•Pattern matching scheme based on WMQ.
16 © 2014 IBM Corporation

17. MQ Light Messaging Model – Pub/Sub
DESTINATION
Pattern=/test/a
DESTINATION
Sender application
1. Send (‘/test/a’, “Hello”);
2. Send (‘/test/a’, “World!”);
1. Hello
2. World!
1. Hello
2. World!
Topic Address Space
Pattern=/test/#
Client 1
Client 2
•Multiple destinations can be created which match the same topic
•Pub/Sub style.
17 © 2014 IBM Corporation

18. MQ Light Messaging Model – Persistent destinations
Sender application
1. Send (‘/test/a’, “Hello”);
2. Send (‘/test/a’, “World!”);
Topic Address Space
Hello
World!
DESTINATION
Pattern=/test/a
Disconnected client
•Destinations persist for a defined “time to live” after receiver detaches.
18 © 2014 IBM Corporation

19. MQ Light Messaging Model – Sharing
DESTINATION
Pattern=/test/#
SHARING
Topic Address Space
Sender application
1. Send (‘/test/a’, “Hello”); DESTINATION
2. Send (‘/test/a’, “World!”);
1. Hello
2. World!
1. Hello
2. World!
Pattern=/test/#
Share=myshare
Client 1
Client 2
Client 3
•Clients attaching to the same topic pattern and share name attach to the
same shared destination.
19 © 2014 IBM Corporation

20. MQ Light Messaging Model – Client takeover
Sender application
1. Send (‘/test/a’, “Hello”);
Hello
Topic Address Space
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.
20 © 2014 IBM Corporation

21. © 2014 IBM Corporation
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)
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22. © 2014 IBM Corporation
MQ Light Node.JS API.
 Installable from NPM
 Promotes a fluent programming style
 Easily wrappable into promises.
 Focussed on code simplicity.
 Client - connect state machine
– Assists cloud applications.
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client.connect()
.on('connected', function() {
console.log('Have some random cat names. Have them!');
subscribe('/kittens');
})
.on('disconnected', function() {
console.log('That's enough for now!');
})
.on('message', function(data) {
console.log('Why not call your cat: '+data);
});

23. “MQ Light”
WebSphere MQ
[Statement of Direction]
© 2014 IBM Corporation
Deployment options : Statement of Direction
Developer coding in Python,
Ruby, JavaScript, Java, C#,
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PHP
MQ Light for Bluemix
Deploy seamlessly to “MQ Light”, MQ
or MQ Light Service
Builds application and uses MQ
Light messaging and tests in local
developer sandbox

24. © 2014 IBM Corporation
WALKTHROUGH
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40. © 2014 IBM Corporation
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
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41. 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
© 2014 IBM Corporation
Tuesday
Opening General Session- IBM Digital Experience
and WebSphere Technical University
Session A31: IBM MQ
CHLAUTH rules – with
MQ V8 updates
Speaker: Morag Hughson
Room 02
Session A4: WebSphere MQ
for z/OS: Performance and
Accounting
Speaker: Alexander Ross
Room 8
Session I26: DataPower-
MQ Connectivity Deep Dive
(Theory)
Speaker: Robin Wiley
Room 27
Session Z1: WebSphere MQ
for z/OS V8: Latest Features
Deep Dive
Speaker: Damon Cross
Room 6
9:00 - 10:00 10:30 - 11:30 11:45 - 12:45 14:00 - 15:00 15:15 - 16:15 16:45 - 17:45
Wednesday
Session Z5:
WebSphere MQ for
z/OS: Security
Speaker: Damon Cross
Room 02
Session A21: What's
New in IBM Messaging
Speaker: Morag Hughson
Room 8
Session C7: Messaging
in the Cloud with IBM
MQ Light and IBM
Bluemix
Speaker: Rob Nicholson
Room 27
Session A17: Managing work-loads,
scaling and availability
with IBM MQ clusters
Speaker: David Ware
Room 6
Lab IL5: DataPower-MQ Connectivity Deep Dive (Hands-On)
Speaker: Robin Wiley
Room 7b
Session A9: WebSphere MQ
for z/OS: The Inside Story
Speaker: Damon Cross
Room 6
Thursday
Session A35: How to
Develop Responsive
Applications with IBM
MQ Light
Speaker: Rob Nicholson
Room 27
Session A22: New IBM
MQ V8 Security Features
Speaker: Morag Hughson
Room 01
Session A3: WebSphere MQ
for z/OS: Shared Queues
Speaker: Alex Ross
Room 6
Session A18: Using Publish
/Subscribe with IBM MQ
Speaker: David Ware
Room 27
Friday
Lab AL6: Developing a First Application with IBM
WebSphere MQ Light
Speakers: Robert Nicholson, Alex Ross
Room 7b
Session A16: Using
IBM MQ Pub/Sub in an
MQ network
Speaker: David Ware
Room 6

42. © 2014 IBM Corporation
Questions?
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43. For Additional Information
© 2014 IBM Corporation
 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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Thank You
Session A35: IBM MQ Light
Rob Nicholson
Senior Technical Staff Member
Software Group
rob_nicholson@uk.ibm.com
+44 1962 817517
Twitter: nicholsr
Linkedin: uk.linkedin.com/in/robertbnicholson/