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CloudML and self-adaptive

cloud-based applications

Alessandro Rossini INF5120

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s

 

•  Largest research organisation in Scandinavia

•  Technology, Medicine, Social Science

•  Headquarters in Trondheim and Oslo

•  Offices in Norway, Denmark, USA, Brazil, Chile

•  2100 employees from 70 countries

•  1000 employees holding a Ph.D.

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Alessandro Rossini

Education

•  2004-2006 M.Sc., University of L'Aquila, Italy University of Bergen, Norway •  2008-2011 Ph.D., University of Bergen, Norway Employment

•  2007 Software engineer, Integrator, Bergen •  2008-2012 Research fellow, University of Bergen •  2012 Lecturer, Bergen University College •  2012- Research scientist, SINTEF, Oslo

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Cloud computing explained

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Cloud computing

A computing model enabling ubiquitous network access to a shared and virtualised pool of

computing capabilities (e.g., network, storage, processing, and memory) that can be rapidly provisioned with minimal management effort

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Applica'ons   Data   Run-­‐'me   OS   Virtualisa'on   Servers   Storage   Network   Applica'ons   Data   Run-­‐'me   OS   Virtualisa'on   Servers   Storage   Network   Applica'ons   Data   Run-­‐'me   OS   Virtualisa'on   Servers   Storage   Network   Consume r   Pro vi der   Consume r   Pro vi der   Pro vi der  

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Cloudify   Foundry  Cloud   Scalr  

jclouds   Simple  Cloud   Deltacloud  

Amazon  

AWS   OpenStack   vCloud  

Amazon   AWS   Rackspace   IBM   SmartCloud   Terramark   …   …   …   …   Frameworks   Libraries   Stacks   PaaS   IaaS  

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Benefits

•  Scalability

•  Performance

•  Availability

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Challenges

•  Heterogeneity •  Incompatibility •  Lack of standards •  Vendor lock-in •  Self-adaptation

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Wed,  19  Feb  

Facebook  acquires   WhatsApp  

Sat,  22  Feb  

1.8  million  users  

register  to  Telegram…  

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Self-adaptive cloud-based applications

Cloud-based applications that self-adapt to changes in environment and requirements

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Dynamically adaptive systems

•  Continuous design and adaptation

•  Short-term changes in execution environment

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CloudML

•  Domain-specific language (DSL) for modelling the provisioning and deployment of multi-cloud applications at design-time

•  Models@run-time environment for enacting the provisioning and deployment of these

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Flexiant  [loca'on:  UK]  

SINTEF  (OpenStack)  [loca'on:  NO]   No'fier   Tomcat:SC   SL:VM   Dispatcher   Tomcat:SC   LL:VM   MongoDB   VM:  Virtual  machine   SC:  Servlet  container   LB:  Load  balancer   SL:  Small  GNU/Linux   ML:  Medium  GNU/Linux   LL:  Large  GNU/Linux   [elas'city:  1..4   response  'me  <  50ms]   [elas'city:  1..8]   [elas'city:  1..8]  

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Models@run-time

•  Model causally connected to the running system

•  A change in the model is reflected on-demand in the running system

•  A change in the running system is automatically reflected in the model

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Models@run-­‐.me  

Execu'on  environments  

Current  

model   Adapta'on  engine  

Reasoning   engine  

Target   model  

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Flexiant  [loca'on:  UK]  

SINTEF  (OpenStack)  [loca'on:  NO]   LB   LB   LB   1:No'fier   2:Tomcat   1:SL   1:Dispatcher   1:Tomcat   1:LL   1:MongoDB   2:MongoDB   VM:  Virtual  machine   SC:  Servlet  container   LB:  Load  balancer   SL:  Small  GNU/Linux   ML:  Medium  GNU/Linux   LL:  Large  GNU/Linux  

Run-time deployment model

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Flexiant  [loca'on:  UK]  

SINTEF  (OpenStack)  [loca'on:  NO]   LB   LB   LB   1:No'fier   2:Tomcat   1:SL   1:Dispatcher   1:Tomcat   1:LL   1:MongoDB   2:MongoDB   VM:  Virtual  machine   SC:  Servlet  container   LB:  Load  balancer   SL:  Small  GNU/Linux   ML:  Medium  GNU/Linux   LL:  Large  GNU/Linux  

Run-time deployment model

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Flexiant  [loca'on:  UK]  

SINTEF  (OpenStack)  [loca'on:  NO]   LB   LB   LB   1:No'fier   2:Tomcat   1:SL   1:Dispatcher   1:Tomcat   2:Dispatcher   3:Tomcat   1:LL   1:MongoDB   2:MongoDB   VM:  Virtual  machine   SC:  Servlet  container   LB:  Load  balancer   SL:  Small  GNU/Linux   ML:  Medium  GNU/Linux   LL:  Large  GNU/Linux  

Run-time deployment model

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Flexiant  [loca'on:  UK]  

SINTEF  (OpenStack)  [loca'on:  NO]   LB   LB   LB   1:No'fier   2:Tomcat   2:No'fier   4:Tomcat   1:SL   1:Dispatcher   1:Tomcat   2:Dispatcher   3:Tomcat   1:LL   1:MongoDB   2:MongoDB   VM:  Virtual  machine   SC:  Servlet  container   LB:  Load  balancer   SL:  Small  GNU/Linux   ML:  Medium  GNU/Linux   LL:  Large  GNU/Linux  

Run-time deployment model

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Resources

•  cloudml.org

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Thank you!

More info: cloudml.org Get in touch: @alerossini alessandrorossini.org

References

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