Καλησπέρα,
Ετοιμάζω για την Παρασκευή το παρακάτω paper που θα παρουσιαστεί στο
φετινό SIGMOD σε περίπου ένα μήνα.
> *P-Store: An Elastic Database System with Predictive Provisioning,**
> *Rebecca Taft, Nosayba El-Sayed, Marco Serafini, Yu Lu, Ashraf
> Aboulnaga, Michael Stonebraker, Ricardo Mayerhofer, Francisco Andrade
>
> Abstract
> OLTP database systems are a critical part of the operation of many
> enterprises. Such systems are often configured statically with
> sufficient capacity for peak load. For many OLTP applications,
> however, the maximum load is an order of magnitude larger than the
> minimum, and load varies in a repeating daily pattern. It is thus
> prudent to allocate computing resources dynamically to match demand.
> One can allocate resources reactively after a load increase is
> detected, but this places additional burden on the already-overloaded
> system to reconfigure. A predictive allocation, in advance of load
> increases, is clearly preferable. We present P-Store, the first
> elastic OLTP DBMS to use prediction, and apply it to the workload of
> B2W Digital (B2W), a large online retailer. Our study shows that
> P-Store outperforms a reactive system on B2W’s workload by causing 72%
> fewer latency violations, and achieves performance comparable to
> static allocation for peak demand while using 50% fewer servers.
--
Nikolaos Chalvantzis
PhD Candidate
Computing Systems Laboratory, School of ECE
National Technical University of Athens
e-mail: nchalv(a)cslab.ece.ntua.gr
skype: n1k0s_ch47vant21s
tel: (+30)6977299040
