1. Running Your Database in the Cloud Eran Levin VP R&D - Xeround

2. Agenda The paradigm shift Real life use case Challenges running a database in the cloud Available solutions Q&A

3. The Paradigm Shift From  Dedicated  On premise  Over provisioned  Self managed Without compromising functionality, performance, availability, … To  Shared resources  Cloud hosted  Pay-per-use  Managed service

4. The Paradigm Shift The Cloud  Availability issues  Stateless  Limited control (HW, Virtualization, Networking)  Expectations (reduce capital and operational costs) Databases  Mission critical, lossless  Statefull  Usage patterns (data and throughput)

5. Use Case eCommerce Application

6. Architectural Evolution - Rollout You are ready to roll your new eCommerce app Will deploy in the cloud (price, time to market, flexibility, “cool”)

7. Arch. Evolution - Failover Active Passive

8. Arch. Evolution – Traffic Increase Load Balancer

9. Arch. Evolution – Application Scaling Load Balancer

10. Arch. Evolution – Database Failover ActivePassive Load Balancer

11. Arch. Evolution – DB Read Scaling Master R R R Load Balancer

12. Architectural Evolution – DB Write Scaling Master R R R Load Balancer

13. Arch. Evolution – Anticipating the Peak Master R R R Load Balancer R R

14. Arch. Evolution – Scaling Down Master R R R Load Balancer

15. Arch. Evolution – Version Upgrade Master R R R Load Balancer Master R R R Load Balancer

16. Running Your Database in the Cloud The Challenges

17. The Challenges Availability Elasticity Manageability Cost  Solved for the Web and application levels  Imagine an equivalent solution for your database…

18. Meeting the Challenges Build your own  For example - MySQL on EC2, Postgres on Rackspace, …  Acquire instances  Install the database according to your architecture  Self manage your database Database-as-a-Service  For example - Amazon RDS, Xeround, Database.com, …

19. The Challenges Availability

20. Availability Standby machine Replication Failover mechanism Source:

21. Cloud Availability Solutions Amazon RDS Multi Zone  Master – Slave configuration  Up to 3 minutes recovery  Double the cost  Maintenance window Xeround  “Master-Master” configuration  Multiple replicas of the data  Always-on

22. The Challenges Scalability

23. Scalability – Scale Up vs. Scale Out Scale Up  Select next available configuration (EC2, RDS)  Relatively simple but limited scalability Scale Out  Add additional resources  Complicated but high scalability  RDS Read replicas Source:

24. Shared Everything vs. Shared Nothing Shared Everything  Scale throughput but limited due to shared resources  Storage and networking limitations in the cloud  ScaleDB Shared Nothing  Horizontal data partition / sharding  Unlimited scalability  Many design and implementation challenges

25. Shared Nothing in the Cloud Xeround  Virtual partitioning – decoupling of data and resources  Linear scalability for both reads and writes  Automatic balancing and repartition following changes in data and / or resources with no downtime ScaleBase / dbShards  Automatically partition the data and direct queries to right databases  Original databases deployment, management and cost  Partitioning events MySQL Cluster  NOT supported on virtual environments

26. Elasticity Scaling out/up AND in/down One of the Cloud justifications (but what about databases)

27. The Challenges Manageability

28. Manageability Self-serve is a fundamental characteristic of cloud computing DBaaS should provide  User management  DB management  Control and Monitoring  Backup and restore ……  API to enable extendibility and interaction with the cloud ecosystem Solutions: Amazon RDS, Xeround, FathomDB

29. Build Your Own Source:

30. Database as a Service

31. The Challenges Cost

32. Cost Pay-per-use is another fundamental characteristic of cloud computing Achieving this model requires:  Elasticity – scale resources according to actual usage  No over provisioning  No idle standby machines  Sharing resources to share cost  Measuring exact usage

33. Q & A

34. Running Your Database in the Cloud Thank You eran.levin@xeround.com www.xeround.com Visit us in Booth 407