Database-Agnostic Transaction Support for Cloud Infrastructures

Navraj Chohan, Chris Bunch, Chandra Krintz, and Yoshihide Nomura (Fujitsu Labs)



In this paper, we present and empirically evaluate the performance of database-agnostic transaction (DAT) supportfor the cloud. Our design and implementation of DAT is scalable, fault-tolerant, and requires only that the datastore provide atomic, row-level access. Our approach enables applications to employ a single transactional datastore APIthat can be used with a wide range of cloud datastore technologies. We implement DAT in AppScale, an open-source implementation of the Google App Engine cloud platform, and use it to evaluate DAT's performance and the performance of a number of popular key-value stores.