DATA ACCESS MANAGEMENT ACROSS DISTRIBUTED DATABASE SYSTEMS

Abstract

Web-scale data management, especially the available-despite-failures key-value stores in the NoSQL category, a new benchmark YCSB has become accepted. The focus of this benchmark is raw performance and scalability; correctness is not measured or validated as part of the benchmark, and the operations do not fall within transactions (since these systems may not support transactions nor guarantee data consistency). YCSB is actually a flexible framework within which the workload and the measurements can be extended. Our proposed benchmark (called YCSB+T) retains the flexibility of YCSB by allowing the user to implement the DB interface to their database/data store; it allows for additional operations apart from the standard read, write, update, delete and scan; it enables defining workloads in terms of these operations; and most importantly it allows these operations to be wrapped into transactions.