Flex-KV: enabling high-performance and flexible KV systems

Authors:
Amar Phanishayee;David G. Andersen;Himabindu Pucha;Anna Povzner;Wendy Belluomini
Affiliations:
Carnegie Mellon University, Pittsburgh, USA;Carnegie Mellon University, Pittsburgh, USA;Violin Memory, Pittsburgh, USA;IBM Research Almaden, Almaden, USA;IBM Research Almaden, Almaden, USA
Venue:
Proceedings of the 2012 workshop on Management of big data systems
Year:
2012

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Abstract

Even within one popular sub-category of "NoSQL" solutions -- key-value (KV) storage systems -- no one existing system meets the needs of all applications. We question this poor state of affairs. In this paper, we make the case for a flexible key-value storage system (Flex-KV) that can support both DRAM and disk-based storage, can act as an unreliable cache or a durable store, and operate consistently or inconsistently. The value of such a system goes beyond ease-of-use: While exploring these dimensions of durability, consistency, and availability, we find new choices for system designs, such as a cache-consistent memcached, that offer some applications a better balance of performance and cost than was previously available.