oracle rac mpp
时间: 2023-10-04 15:08:02 浏览: 40
Oracle RAC (Real Application Clusters) is a technology that enables multiple instances of Oracle Database to run on multiple nodes in a cluster, sharing a common set of storage devices. RAC provides high availability, scalability, and performance for mission-critical applications by allowing multiple nodes to access the same data concurrently.
On the other hand, MPP (Massively Parallel Processing) is a technique used in data warehousing and big data analytics to process large datasets by using multiple processors in parallel. MPP systems typically have a shared-nothing architecture, where each node has its own processing power and storage.
While both RAC and MPP are used for scaling and improving performance, they are different in their approaches. RAC is designed for OLTP (Online Transaction Processing) workloads, where multiple instances of the database work together to handle a large number of small transactions. MPP, on the other hand, is designed for OLAP (Online Analytical Processing) workloads, where large volumes of data are processed in parallel to support complex analytics and reporting.
In summary, Oracle RAC is a technology for scaling OLTP workloads, while MPP is a technique for scaling OLAP workloads.