sponsors
help promote
usenix conference policies
Replex: A Scalable, Highly Available Multi-Index Data Store
Error message
You are not authorized to post comments.Amy Tai, VMware Research and Princeton University; Michael Wei, VMware Research and University of California, San Diego; Michael J. Freedman, Princeton University; Ittai Abraham and Dahlia Malkhi, VMware Research
Awarded Best Paper
The need for scalable, high-performance datastores has led to the development of NoSQL databases, which achieve scalability by partitioning data over a single key. However, programmers often need to query data with other keys, which data stores provide by either querying every partition, eliminating the benefits of partitioning, or replicating additional indexes, wasting the benefits of data replication.
In this paper, we show there is no need to compromise scalability for functionality. We present Replex, a datastore that enables efficient querying on multiple keys by rethinking data placement during replication. Traditionally, a data store is first globally partitioned, then each partition is replicated identically to multiple nodes. Instead, Replex relies on a novel replication unit, termed replex, which partitions a full copy of the data based on its unique key. Replexes eliminate any additional overhead to maintaining indices, at the cost of increasing recovery complexity. To address this issue, we also introduce hybrid replexes, which enable a rich design space for trading off steady-state performance with faster recovery. We build, parameterize, and evaluate Replex on multiple dimensions and find that Replex surpasses the steady-state and failure recovery performance of Hyper- Dex, a state-of-the-art multi-key data store.
Open Access Media
USENIX is committed to Open Access to the research presented at our events. Papers and proceedings are freely available to everyone once the event begins. Any video, audio, and/or slides that are posted after the event are also free and open to everyone. Support USENIX and our commitment to Open Access.
author = {Amy Tai and Michael Wei and Michael J. Freedman and Ittai Abraham and Dahlia Malkhi},
title = {Replex: A Scalable, Highly Available {Multi-Index} Data Store},
booktitle = {2016 USENIX Annual Technical Conference (USENIX ATC 16)},
year = {2016},
isbn = {978-1-931971-30-0},
address = {Denver, CO},
pages = {337--350},
url = {https://www.usenix.org/conference/atc16/technical-sessions/presentation/tai},
publisher = {USENIX Association},
month = jun
}
connect with us