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Committer and PMC member of Apache Stratos
Senior Software Engineer, WSO2
Lahiru Sandaruwan
Developing and deploying SaaS app using
VMware vCloud Suite with Apache Stratos
Committer and PMC member of Apache Stratos
Software Engineer, WSO2
Melan Jayasingha
*
Agenda
• Developing and Development of SaaS
application
• Values added from cloud
• How to use vCloud as Stratos IaaS for
building a SaaS platform
• Demonstration with Joomla cartridge
• Scalability demo
• High Availability demo
• Q&A, Discussion
*
Development and Deployment
of SaaS application
*
Values added from cloud
๏ Scalability
๏ High Availability
๏ Load Balancing
๏ SLA Awareness
*
Scalability
"The ability of the of a system to
continue to operate correctly even
when it is scaled to a larger size”
*
Vertical Scaling
• Get the maximum out of each allocated JVM or
resource
• Increase CPU size
• Increase memory
*
Horizontal Scaling
*
Availability
*
Availability
*
High Availability
A system that is designed for continuous operation
in the event of a failure of one or more
components. However, the system may display
some degradation of service, but will continue to
perform correctly.
High Availability: The proportion of time during
which the service is accessible with reasonable
response times should be close to 100%.
*
How to decide required scale
(capacity) & availability?
• Average throughput (TPS)
• Max throughput (TPS)
• Monetary value of a transaction
• Average loss & max loss per second of
downtime
• Decide on how much to invest based on cost vs.
benefit tradeoff
*
Load Balancing
• Load balancing algorithms
• Round robin
• Weighted
• Response based
• Health check
• Failover-only
*
Configuring Stratos to use
vCloud
<iaasProvider type="vcloud" name="VMware vCloud specific details">
<className>org.apache.stratos.cloud.controller.iaases.VCloudIaas</className>
<provider>vcloud</provider>
<identity svns:secretAlias="cloud.controller.vcloud.identity"
>sampleusername</identity>
<credential svns:secretAlias="cloud.controller.vcloud.credential">*****</credential>
<property name="jclouds.endpoint" value="https://mycloud.stratogen.sg/api" />
<property name="jclouds.vcloud.version.schema" value="1.5" />
<property name="jclouds.api-version" value="1.5" />
<property name="autoAssignIp" value="true" />
iaasProvider>
*
Demo
*
References
๏ http://www.cari-info.org/cari-2012/session%201/1B3.pdf
๏ http://www.slideshare.net/afkham_azeez/java-colombo-developing-
highly-scalable-apps
- Azeez’s talk at Java Colombo
*
DISCUSSION
*
Thanks!

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Developing and Deploying SaaS App Using VMware vCloud Suite

  • 1. Committer and PMC member of Apache Stratos Senior Software Engineer, WSO2 Lahiru Sandaruwan Developing and deploying SaaS app using VMware vCloud Suite with Apache Stratos Committer and PMC member of Apache Stratos Software Engineer, WSO2 Melan Jayasingha
  • 2. * Agenda • Developing and Development of SaaS application • Values added from cloud • How to use vCloud as Stratos IaaS for building a SaaS platform • Demonstration with Joomla cartridge • Scalability demo • High Availability demo • Q&A, Discussion
  • 4. * Values added from cloud ๏ Scalability ๏ High Availability ๏ Load Balancing ๏ SLA Awareness
  • 5. * Scalability "The ability of the of a system to continue to operate correctly even when it is scaled to a larger size”
  • 6. * Vertical Scaling • Get the maximum out of each allocated JVM or resource • Increase CPU size • Increase memory
  • 10. * High Availability A system that is designed for continuous operation in the event of a failure of one or more components. However, the system may display some degradation of service, but will continue to perform correctly. High Availability: The proportion of time during which the service is accessible with reasonable response times should be close to 100%.
  • 11. * How to decide required scale (capacity) & availability? • Average throughput (TPS) • Max throughput (TPS) • Monetary value of a transaction • Average loss & max loss per second of downtime • Decide on how much to invest based on cost vs. benefit tradeoff
  • 12. * Load Balancing • Load balancing algorithms • Round robin • Weighted • Response based • Health check • Failover-only
  • 13. * Configuring Stratos to use vCloud <iaasProvider type="vcloud" name="VMware vCloud specific details"> <className>org.apache.stratos.cloud.controller.iaases.VCloudIaas</className> <provider>vcloud</provider> <identity svns:secretAlias="cloud.controller.vcloud.identity" >sampleusername</identity> <credential svns:secretAlias="cloud.controller.vcloud.credential">*****</credential> <property name="jclouds.endpoint" value="https://mycloud.stratogen.sg/api" /> <property name="jclouds.vcloud.version.schema" value="1.5" /> <property name="jclouds.api-version" value="1.5" /> <property name="autoAssignIp" value="true" /> iaasProvider>