Presentation from JavaOne providing an introduction to microservices, the Netflix OSS projects Eureka, Ribbon, Hystrix and Archaius, and the open source work that has been done to make them more consumable in WebSphere Application Server Liberty Profile

1. David Currie – Senior Software Engineer
30th September 2014
Taking the Application Server
to Web Scale with
Netflix Open Source Software
© 2014 IBM Corporation

2. © 2014 IBM Corporation
Important Disclaimers
THE INFORMATION CONTAINED IN THIS PRESENTATION IS PROVIDED FOR INFORMATIONAL PURPOSES ONLY.
WHILST EFFORTS WERE MADE TO VERIFY THE COMPLETENESS AND ACCURACY OF THE INFORMATION
CONTAINED IN THIS PRESENTATION, IT IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED.
ALL PERFORMANCE DATA INCLUDED IN THIS PRESENTATION HAVE BEEN GATHERED IN A CONTROLLED
ENVIRONMENT. YOUR OWN TEST RESULTS MAY VARY BASED ON HARDWARE, SOFTWARE OR INFRASTRUCTURE
DIFFERENCES.
ALL DATA INCLUDED IN THIS PRESENTATION ARE MEANT TO BE USED ONLY AS A GUIDE.
IN ADDITION, THE INFORMATION CONTAINED IN THIS PRESENTATION IS BASED ON IBM’S CURRENT PRODUCT
PLANS AND STRATEGY, WHICH ARE SUBJECT TO CHANGE BY IBM, WITHOUT NOTICE.
IBM AND ITS AFFILIATED COMPANIES SHALL NOT BE RESPONSIBLE FOR ANY DAMAGES ARISING OUT OF THE USE
OF, OR OTHERWISE RELATED TO, THIS PRESENTATION OR ANY OTHER DOCUMENTATION.
NOTHING CONTAINED IN THIS PRESENTATION IS INTENDED TO, OR SHALL HAVE THE EFFECT OF:
- CREATING ANY WARRANT OR REPRESENTATION FROM IBM, ITS AFFILIATED COMPANIES OR ITS OR THEIR
SUPPLIERS AND/OR LICENSORS

3. © 2014 IBM Corporation
david_currie@uk.ibm.com @dcurrie http://uk.linkedin.com/in/davidcurrie/

4. © 2014 IBM Corporation

5. © 2014 IBM Corporation

6. © 2014 IBM Corporation
WebSphere
Liberty Profile
WebSphere
eXtreme
Scale
(WXS)
JAX-RS
Servlet Filter
Data Service
Facade
Service Facade
Data Tier
App
Specific
Caching
WXS
Client
nginx
Browser
App
jQuery/DOJO
Hybrid
Worklight
App
jQuery/DOJO
nginx
IBM
Worklight
http://bit.ly/
acmeairblog

7. © 2014 IBM Corporation
programmableweb.com 2012
Peak Performance
and Scale
4.3 billion API calls/day


8. © 2014 IBM Corporation
Operational
Visibility


9. DevOps 
HA & DR
Elastic scaling
© 2014 IBM Corporation

10. © 2014 IBM Corporation
http://techblog.netflix.com
http://netflix.github.io

11. © 2014 IBM Corporation
2012
Acme Air run
on IBM Cloud at
“Web Scale”
2013
2014
SPECjEnterprise
Portability cloud
Sample application
cloud prize work
prize work
Acme Air Cloud/Mobile
Sample/Benchmark born
https://github.com/EmergingTechnologyInstitute

12. © 2014 IBM Corporation
Monolithic
Application

13. © 2014 IBM Corporation
Monolithic
Application
Scaled

14. © 2014 IBM Corporation
Mircoservices
Application

15. © 2014 IBM Corporation
Microservices
Application
Scaled

16. © 2014 IBM Corporation
Service
Discovery
Eureka

17. Service
Invocation
Ribbon
© 2014 IBM Corporation

18. © 2014 IBM Corporation
Hope is not a
design method
“
Michael Nygard, Release It! ”

19. © 2014 IBM Corporation
App Container
User Request
Dependency A Dependency B Dependency C
Dependency D Dependency E
Dependency F
Dependency G Dependency H
Dependency I
Dependency J Dependency K
Dependency L
Dependency M Dependency N Dependency O

20. © 2014 IBM Corporation
User Request
App Container
Dependency A Dependency B Dependency C
Dependency D Dependency E
Dependency F
Dependency G Dependency H
Dependency I
Dependency J Dependency K
Dependency L
Dependency M Dependency N Dependency O
FAILURE!

21. © 2014 IBM Corporation
User Request
Dependency A Dependency B Dependency C
Dependency D Dependency E
Dependency F
Dependency G Dependency H
Dependency I
Dependency J Dependency K
Dependency L
Dependency M Dependency N Dependency O
User Request
User Request
User Request
User Request
App Container
THREAD
STARVATION!

22. © 2014 IBM Corporation
User Request
Dependency A Dependency B Dependency C
Dependency D Dependency E
Dependency F
Dependency G Dependency H
Dependency I
Dependency A
(5 Threads)
Dependency B
(5 Threads)
Dependency C
(10 Threads)
Dependency D
(5 Threads)
Dependency E
(10 Threads)
Dependency F
(5 Threads)
Dependency G
(10 Threads)
Dependency H
(5 Threads)
App Container
FAIL FAST

23. Circuit
Breaker
Hystrix
© 2014 IBM Corporation
https://www.flickr.com/photos/leafbug/409950515 CC-BY-ND 2.0

24. © 2014 IBM Corporation

25. getLongProperty(“mywebapp.lock.waitTime", 1000);
© 2014 IBM Corporation
DynamicLongProperty timeToWait =
DynamicPropertyFactory.getInstance().
timeToWait.get();
Application
Runtime
URL
DB
App Property File
Libraries
Container
Dynamic
Configuration
Archaius

26. Small download
Low memory usage
Simple configuration
Fast start up
Easy access
Free tooling
© 2014 IBM Corporation

27. zosSecurity zosTransaction collectiveController
jaxws
jmsMdb wasJmsSecurity
mongodb jaxb
wsSecurity wmqJmsClient
wasJmsClient wasJmsServer
oauth collectiveMember ldapRegistry webCache
ejbLite cdi managedBeans
localConnector beanValidation
monitor sessionDatabase
© 2014 IBM Corporation
z/OS
ND
Base, Express
Liberty Core
Application
Manager
jsp
servlet jpa
Feature Manager HTTP Transport
jsf
jndi jdbc
wab
blueprint
jaxrs
json
restConnector
osgi.jpa
appSecurity
ssl
clusterMember
concurrent
zosWlm
Liberty
Features

28. © 2014 IBM Corporation
GitHub
NetflixOSS
Cloud Foundry
Zero Turnaround
Jenkins
Opscode
Chef
Apache Maven
IBM UrbanCode Deploy
IntelliJ IDEA
Apache Ant
Gradle
WebSphere
Developer Tools
Liberty
http://wasdev.net
http://wasdev.github.io

29. © 2014 IBM Corporation

30. © 2014 IBM Corporation

31. DynamicLongProperty timeToWait =
DynamicPropertyFactory.getInstance().
getLongProperty(“mywebapp.lock.waitTime", 1000);
timeToWait.get();
server.xml
<archaius>
<myWebapp><lock><waitTime>500</waitTime></lock></myWebapp>
</archaius>
33 © 2014 IBM Corporation

32. public class MyCommand extends HystrixCommand<String> {
protected String run() { // remote call }
protected String getFallback() { // local fallback }
}
String result = new MyCommand().execute();
server.xml
<hystrix>
<command><MyCommand>
<execution><isolation><thread>
<timeoutInMilliseconds>10000</timeoutInMilliseconds>
</thread></isolation></execution>
</MyCommand></command>
</hystrix>
34 © 2014 IBM Corporation

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35. © 2014 IBM Corporation

36. www.ibm.com/developer
Discover
new technical resources.
Develop
your coding skills.
Connect
with developers.
ibm.biz/javaone2014
© 2014 IBM Corporation
Visit Booth 5511 to learn about Cloud, DevOps and Mobile solutions

37. IBM Developer Kits for Java
ibm.com/java/jdk
WebShere Liberty Profile
wasdev.net
IBM Bluemix
ibm.com/bluemix
IBM Developer Kits for Node.js
ibm.com/developerworks/web/nodesdk/
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Copyright and Trademarks
© IBM Corporation 2014. All Rights Reserved.
IBM, the IBM logo, and ibm.com are trademarks or registered trademarks of International
Business Machines Corp., and registered in many jurisdictions worldwide.
Other product and service names might be trademarks of IBM or other companies.
A current list of IBM trademarks is available on the Web – see the IBM “Copyright and
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