The document outlines the Parems Service Fabric, a cloud runtime based on OSGi technology that enables dynamic assembly of composite applications. It emphasizes modular systems, adaptability, and self-healing capabilities that make the platform robust against failures. Additionally, it discusses the importance of using appropriate data services and presents industry standards that the service fabric adheres to.

1. Transforming the Way
the World Runs Applications
Cloud & OSGi - The Dawn of Composite Clouds
Richard Nicholson info@paremus.com
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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2. Mythology, marketing...
:-)
:-(
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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3. The Problem is...
Cloud Computing
addresses this
?
Anne Thomas Manes (Gartner) – SOA Symposium: Berlin, October 2010
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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4. Modular Systems are Maintainable Systems
✗ Deployment of static software images
✔ Dynamic Assembly composites applications
Anne Thomas Manes (Gartner) – SOA Symposium: Berlin, October 2010
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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5. Introducing the Paremus Service Fabric
An OSGi™ technology based cloud runtime
SaaS
(1..m) ‘Systems’ may run upon a single
Service Fabric
Fabric ‘EclipseCon’ = ∑ all ‘EclipseCon’ fibres
(1..n) compute resource may contribute to a
IaaS
Service Fabric
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

6. Demo Environment
A ‘blue’ Atlas Agent
Off Fabric node
Service Fabric Nodes
Bootstrap Atlas Manager
Source Repository for Examples
Service Fabric Infrastructure
POSH CLI
Cached Examples
Application UI
Deployed Systems
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

7. Atlas & Resource Target State
A blue !"bre#
Managing characteristics of population
rather than each individual node has a
Service Fabric $ EclipseCon dramatic effect on decreasing runtime
fibres:
infra; quota=[10..10]; filter=(&(Group=Red)(os.name=Darwin), complexity -
default; quota=[100..1000]; filter=(Group=Blue)
http://adaptevolve.blogspot.com/
2008/01/complexity-part-ii-it-all-
depends-on.html
Atlas agents:
host resource property: colour
none
red
blue
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

8. Demo: Bootstrapping a Service Fabric
A video of the demo is
available on the next page
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

9. A Model Driven Runtime
System Description Running System
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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10. A System
System Scaling Behaviour Resource Contract
System
Elements (Replication Handlers)
= (os.name=linux) & (CPU.speed > 3 Ghz)
= +
= fl(x)
= fm(y)
= fn(z)
+ = !(os.name=Windows)
= (cost_center=engineering)
ser OSGi - Remote Service / Remote Service Admin
vic
ew
ires
(re Service E
m ote E
E
over Essence RMI
Service E Endpoint
Essence RMI
) Export
Fabric
System
System Element
! Service A
Service B
Service D
Service E
$
%
Service F
A Reference to... E Remote Service Admin
Service Properties Essence RMI
for E
OSGi Service Registry
"
an OSGi assembly or Remote Service Admin
AVRO
a WAR, or EAR or #
Export Registration
&
E
a package name or even Topology Manager
Discovery Provider
SLP '
E
a named VM image.
Discovery Provider
DDS
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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11. Starting a System
Target State Runtime State
=1
=3
=1
Deploy
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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12. Starting a System
The Service Fabric responds by creating the corresponding System
Provision Delta
Target State Runtime State
Planned Deltas
=1 e.g. Configuration
M!del changes
=3 Runtime
Target State
Unplanned Deltas Entity
"Structure#SLA$
=1 e.g. Resource
failures
Monitor
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

13. Updating a System
To change a runtime System, change its model in the required manner.
Target State Runtime State
=1
=5
=1
Re-Configure
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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14. Updating a System
The Service Fabric responds by modifying the running System
Provision Delta
Target State Runtime State
Planned Deltas
=1 e.g. Configuration
M!del changes
=5 Target State
Runtime
Unplanned Deltas Entity
"Structure#SLA$
=1 e.g. Resource
failures
Monitor
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

15. Demo: Application Agility
A video of the demo is
available on the next page
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

16. A self-configuring PaaS
Modular & runtime dependencies
❶ ❷ triggers policy
EAR based runtime assembly
JEE WAB
❷
triggers policy
based runtime assembly
❶
WAR
Each ‘fibre’ dynamically assembles and configures any local infrastructure services
in response to the runtime dependencies of each hosted System Element
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

17. Robust Systems...
Reddit Went Down: Blame Amazon, the Cloud or Both?
“I am a data storage/data center specialist. It pains me to see the "cloud" illusion come crashing down on
a great product like Reddit.”
...
...
“It's no secret among most IT folks that the cloud really isn't cheaper than rolling your own infrastructure
for reasons exactly like this.”
http://www.readwriteweb.com/cloud/2011/03/ipad-for-business-round-up-web.php
Financial Services Organization: “How do you stop people rebooting machines....?”
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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18. What do we mean by Robust?
• A ‘Robust’ platform is designed to survive
cascading failure.
• A ‘Robust’ platform is adaptive & self-
repairing: continually attempting to
‘settle’ into the desired state.
• No central or static points of command &
control
Adaptive & Recovery Oriented
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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19. Whac-A-Mole :)
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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20. Whac-A-Mole the Paremus Way
A video of the demo is
available on the next page
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

21. Robust PaaS Services
Registry
Provisioner Service Advertisements
Principles: System Managers
• No ‘special’ management nodes
• Source so*ware repository may fail
• Population changes over time (nodes come and go)
• Systems change over time (upgrades / roll-backs)
• Attempting to cache everything / everywhere / is doomed to C A
failure
B
Approaches:
• All infra services: Dynamic Group formation / re-formation
• All infra services : Dynamic leadership election
Repository
• On-fabric Repository Cache: Eventual Consistency across Management & OSGi bundles
self-selecting set of participating members System Descriptions
Monitoring
Nimble Policies
WAR
EAR
General artifacts
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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22. CDS Behaviour - Form Group & Elect Leader
CDS Group Lead
! active members
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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23. A System is Loaded
=1
!
=5
=1
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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24. Artefacts are automatically cached in response
Business Group
Repository
!
Business Division
Repository
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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25. Artefacts propagated around Group
"
$
!
#
Data Flow
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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26. Lead Fails
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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27. New leader elected - Group closes around failure
!
#
"
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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28. New members join team
!
#
"
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
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29. What about Application Data?
No Silver Bullets!
Consistency, Availability, Partition-ability (CAP) trade-offs still apply.
Use most appropriate data service for each business application.
• Unstructured data processing - Hadoop
• Key / Value - Voldemort
• Column - Cassandra
• Graph Database - Neo4j
• Relational - Derby, MySQL
• Distribution to nodes - BitTorrent
http://blog.nahurst.com/visual-guide-to-nosql-systems
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

30. Late Break Demos....
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

31. Introducing Zeus
+
A video of the demo is
available on the next page
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

32. SDP Foreign Exchange (FX) functionality;
Lab49 is a strategy, design and technology consulting
‣ Request for Quote (RFQ) firm. Lab49 deliver strategic consulting and build
advanced solutions for the world’s leading investment
‣ Request for Stream (RFS) banks, hedge funds and exchanges.
‣ Execution blotter
‣ Research/News
“Lab49 deliver world-class solutions to some of
the most sophisticated firms in financial services
Lab49 SDP leverages; today. Our innovative approach stems from
‣ Paremus OSGi Service Fabric adopting user-centric practices enabling clients
to respond quickly to today’s challenges, as well
‣ Akka Open Source Agent-Actor Framework as realize new business opportunities in the
‣ Lab49 Design and Engineering modern world of trading.
‣ HTML5/JavaScript
Service Fabric Overview Copyright © © 2011Lab49 UK Ltd.
Copyright 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.
May not be reproduced by any means without express permission. All rights reserved.

33. Demo: Single Dealer Platform
For access to demo video
please contact
info@paremus.com
Service Fabric Overview Copyright © © 2011Lab49 UK Ltd.
Copyright 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.
May not be reproduced by any means without express permission. All rights reserved.

34. Industry Standards...
• OSGi framework - Equinox, Knopflerfish or Felix
• Paremus OSGi command shell (Posh): OSGi RFC147
• Paremus Nimble Resolver: OSGi OBR resolver (RFC112)
• Paremus implementation of OSGi Remote Services Administration
• OSGi ConfigAdmin
• Paremus implementation of OSGi Web Archive Bundle (RFC66)
• RTI implementation of OMG DDS: service discovery, configuration, management &
monitoring
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

35. Industry Standards...
• Cloud / OSGi workshop organised by Peter Kriens - EclipseCon 2011
• Ongoing EEG conference calls throughout 2010 / 2011 chaired by
David Bosschaert
• RFP-133 Cloud Computing - Current Status
• To get involved: contact David Bosschaert or Peter Kriens
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

36. Modularity is a Must Have not a Maybe!
Patterns of Modular Architecture (Kirk Knoernschild) - http://www.kirkk.com/modularity/chapters/
Diversity and Complexity - Scott E. Page
http://dspace.mit.edu/bitstream/handle/1721.1/60085/BBFRFC66.pdf?sequence=1
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.

37. Any Questions?
Distributed OSGi - Dr Robert Dunne
Tuesday, 10:40, 20 minutes | Ballroom BC
OSGi DevCon BoF
Tuesday, 7:30 | Napa
& drop by the Paremus stand for a chat!
Service Fabric Overview Copyright © 2011 Paremus Ltd. March 2011
May not be reproduced by any means without express permission. All rights reserved.