Paper Info
Title
LibRe: a consistency protocol for modern storage systems.
Abstract
The dramatic increase of data stored, processed and reused in all sectors leads to the evolution of modern storage systems known as NoSQL databases such as Amazon Dynamo, Cassandra, Big-Table, PNUTS, HBase. In order to boost the availability and performance of the system, these storage systems follow eventual consistency and don't offer tight consistency by default. Paxos is commonly used in this context to ensure tight consistency on demand. But it adds extra costs on messages management, mostly complexity and size. In addition, Paxos shrinks the space for other research areas such as cache memory optimization and load-balancing. This paper gives an opportunity to propose and discuss the challenges of a new consistency protocol for modern storage systems entitled 'LibRe'. LibRe follows the Eventual Consistency model. In addition, it logs operations executed on each node in the distributed system. This additional information is used by the load balancer and ensures that requests are not forwarded to a node where the data needed to serve the request are stale. Since Eventual Consistency already offers better Availability and Partition tolerance, the aspiration of associating LibRe with eventual consistency is to work out a better consistency management service providing also availability and partition tolerance. The simulation results for consistency and latency in LibRe are compared among traditional Pessimistic Consistency, Eventual Consistency, and Paxos. The overall results are discussed and new opportunities for research works are provided.
Year
DOI
Venue
2013
10.1145/2522548.2522605
COMPUTE
Keywords
Field
DocType
partition tolerance,better availability,new consistency protocol,traditional pessimistic consistency,tight consistency,modern storage system,eventual consistency,storage system,eventual consistency model,better consistency management service,cap,consistency
Eventual consistency,Load balancing (computing),CPU cache,Computer science,Latency (engineering),Real-time computing,NoSQL,Consistency model,Paxos,Distributed computing,Cloud computing
Conference
Citations 
PageRank 
References 
0
0.34
19
Authors
4
Name
Order
Citations
PageRank
Sathiya Prabhu Kumar102.03
Raja Chiky24414.48
Sylvain Lefebvre3107462.54
Eric Gressier-Soudan44510.41