SQL Azure Federation and Scalability
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In this presentation we review SQL Azure Federation and Scalability. Best Regards, Dr. Eduardo Castro Martinez Microsoft SQL Server MVP http://ecastrom.blogspot.com http://tinyurl.com/comunidadwindows
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SQL Azure Federation and Scalability
- 1. Ing. Eduardo Castro, PhD ecastro@grupoasesor.net http://ecastrom.blogspot.com http://comunidadwindows.org http://tiny.cc/comwindows
- 3. Microsoft SQL Azure Information Platform as a Service Managed Service Scale on Demand Innovate Faster Platform capabilities delivered as a service Database as a utility with pay as you Innovate with new data application (Database, Data Sync, Reporting…) grow scaling patterns Reduced complexity, greater flexibility Rely on Business-ready SLAs Build cloud-based data solutions on a familiar relational model Easy provisioning and deployment Enable multi-tenant solutions Build on existing developer skills and Auto High availability and fault tolerant Manage multiple servers familiar Transact-SQL syntax
- 6. A relational DB in the cloud SQL Azure Database Data Hub Others (Future) .NET Services Applications SQL Services Relational database as a service Highly available, automatically maintained Live Services Windows Azure Extension of the SQL Server Data Platform Applications Windows Windows Windows Others Server Vista/XP Mobile
- 7. Single Logical Multiple Physical Database Replicas Replica 1 Replica 2 DB Replica 3
- 8. Reference Data Sync Data Symmetric Programming Model Data Hub Aggregation • Initial services – core RDBMS capabilities with SQL Azure Database, Data Sync • Future Offerings • Additional data platform capabilities: Reporting, BI • New services: Reference Data
- 9. Clear Feedback: “I want a database in the Cloud” Focus on combining the best features of SQL Server running at scale with low friction
- 10. Application Application Application Browser Browser ODBC, OLEDB, ADO.N Application Application REST Client REST Client SQL Client* et PHP, Ruby, … Cloud Cloud Evolves HTTP+REST HTTP+REST HTTP HTTP TDS Windows Azure Windows Azure Web App REST (Astoria) Web App Data Center Data Center REST Client ADO.Net + EF SQL Client* REST/SOAP + ACE Model TDS + TSQL Model SDS Current SDS Next * Client access enabled using TDS for ODBC, ADO.Net, OLEDB, PHP-SQL, Ruby, …
- 11. SQL Azure Database Others (Future) SQL Azure Applications Windows Azure AppFabric Windows Azure Applications Windows Others
- 12. SQL Azure Database TDS Database Application Database Database SQL Azure Database Others (Future)
- 13. SQL Azure Database Database Application Max database size Database is 50 GB Database Application Database
- 14. Applications use standard SQL client libraries: ODBC, ADO.Net, PHP, … Application Internet Azure Cloud TDS (tcp) Security Boundary Load balancer forwards „sticky‟ sessions to TDS protocol tier LB TDS (tcp) Gateway Gateway Gateway Gateway Gateway Gateway Gateway: TDS protocol gateway, enforces AUTHN/AUTHZ policy; proxy to CloudDB TDS (tcp) L SQL SQL SQL SQL Scalability and Availability: Fabric, Failover, Replication, and Load balancing
- 16. Gateway Process TDS Endpoint AdminSvc Endpoint Provisioning Endpoint Protocol Parser Business Logic Services Connection Mgmt L SQL SQL SQL SQL Scalability and Availability: Fabric, Failover, Replication, and Load balancing
- 19. Live DNS Cluster Customer Browser Live DNS Svc 1 Datacenter (Sub-Region) 5 Portal LB Gateway LB 2 4 3 6 Front-end Node Front-end Node Front-end Node Front-end Node Admin Portal Admin Portal Gateway Gateway 7 Backend Node Backend Node Backend Node SQL Server SQL Server SQL Server Mgmt. Mgmt. Mgmt. Services Fabric Services Fabric Services Fabric
- 21. 1 TDS Gateway Front-end Node TDS Session Protocol Parser 2 3 Gateway Logic Master Cluster Master Node 4 Master Node Components 7 5 8 6 Backend Node 1 Backend Node 2 Backend Node 3 SQL Instance SQL Instance SQL Instance SQL DB SQL DB SQL DB Scalability and and Availability: Fabric,Failover,Replication, and Load balancing Scalability Availability: Fabric, Failover, Replication, and Load balancing
- 25. Challenges Today “Capacity Bursting“ Elastic scale – database as a service Capacity Average Usage Time Pay as you grow and shrink Compute # of Hr‟s Average Usage Easy to provision and manage database No hardware, no manual Promotions, events, ticket selling businesses are “bursts – bound” by database administration required nature Capacity constraints limit business agility High costs of entry into new business Difficult to roll out extra capacity quickly Idle capacity “off-bursts” is cost prohibitive
- 26. T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 All my data is handled by T11 one DB on one server T12 T13 T14 T15 T16 T17 T18 T19 T20
- 27. App
- 28. − Provisioning Covered by − Growing and shrinking capacity SQL Azure today − Managing − Upgrading, patching, HA for lots of databases − Routing − Where is the directory? − How to scale it and use it? Coming up in SQL Azure: − Partition Management Federations − Splitting and Merging, without loss of availability − Fan-out
- 29. Con- fig Data1 Data2 Data3 Data4 Data5
- 30. Root Federation “CustData” (Federation Key: CustID) Member: [min, 100) AU AU AU PK=5 PK=25 PK=35 Member: [100, 488) AU AU AU PK=105 PK=235 PK=365 Member: [488, max) AU AU AU PK=555 PK=2545 PK=3565
- 31. SalesDB Federation “Orders_Fed” (Federation Key: CustID) Member: [min, max)
- 32. Create a Federation use a BIGINT as the Federation Key COS222 What‟s New in Microsoft SQL Azure,
- 33. Establish the customerid as the Federation Key Data with the same customerid in these two tables should be treated as an Atomic Unit
- 34. COS222 What‟s New in Microsoft SQL Azure,
- 35. COS222 What‟s New in Microsoft SQL Azure,
- 36. SalesDB Products Federation “Orders_Fed” (Federation Key: CustID) Member: [min, max) orders zipcode
- 37. SalesDB Products Federation “Orders_Fed” (Federation Key: CustID) Member: [min, max) orders zipcode Member: [min, 100) ord zipcode ers Member: [100, max) ord zipcode ers
- 38. Federation Root houses the Directory Split the Federation Member into two at the customerid 100 boundary COS222 What‟s New in Microsoft SQL Azure,
- 39. Use Federation Member that contains customerids < 100 Use Federation Member that contains customerids > 100
- 40. App Member: [min, 100) AU AU AU PK=5 PK=25 PK=56 zipcode
- 50. xyz.database.windows.net efg.database.windows.net Master prod1 Prod2 prod2 DR1 Master clone copy prod2 clone copy abc.database.windows.net prod2 Master Dev1 clone copy South Central US North Central US CREATE DATABASE efg.prod2clone abc.prod2clone CREATE DATABASE xyz.prod2clone AS COPY OF xyz.prod2 AS COPY OF xyz.prod2
- 51. CTP1 SQL Azure Database Data Sync Service Retail Stores For SQL Azure Remote Offices Sync CTP2 On-Premises (Headquarters)