
387CloudDB AutoAdmin
approaches for managing the resource provisioning challenge for cloud databases.
The black-box provisioning uses end-to-end performance results of sample query exe-
cutions, whereas white-box provisioning uses a ner grained approach that relies on
the DBMS optimizer to predict the physical resource (e.g., I/O, memory, CPU) con-
sumption for each query. Floratou et al. [10] have studied the performance and cost in
the relational database as a service environments. The results show that given a range
of pricing models and the exibility of the allocation of resources in cloud-based
environments, it is hard for a user to gure ...