eHarmony and Millipore Migrated to Oracle
September 23, 2007 by Mark Marucot
eHarmony and Millipore decided to migrate to Oracle because Oracle satisfied all their business needs.
eHarmony decided to migrate from Microsoft SQL Server to Oracle 10g infrastructure to meet their need for greater scalability and resolve locking issues which were encountered whenever multiple users is accessing the database.
According to Mark Douglas, eHarmony’s vice president of technology:
Scalability was the main issue with [Microsoft SQL Server]. We just physically outgrew it because it doesn’t have the same kind of functionality that [Real Application Clusters] provide with Oracle.The way locking works in SQL Server becomes a big scaling issue over time. We’re running anywhere [up to] 1,000 transactions per second, so that turns into hundreds of thousands of locks, and it just is not scalable
Now, eHarmony is operating a clustered Oracle Database 10g environment with Oracle Real Application Clusters, Oracle Automatic Storage Management, and Oracle Enterprise Manager 10g on multiple Sun Fire X4600 servers running Windows. The company also implemented an Oracle data warehouse to support real-time and historical business intelligence reporting initiatives. Douglas said Oracle Partitioning software is being used in conjunction with the data warehouse to improve performance.
Millipore decided to migrate from SAP to Oracle because Millipore has long sought to standardize on Oracle applications throughout its many business units. According to Tom Roy, Millipore’s manager of application services:
We’ve been pleased with Oracle applications over the years and so it pretty much seemed a no-brainer that we would bring this acquisition onto Oracle.
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