Paper Info
Title
Efficient compute node-local replication mechanisms for NVRAM-centric data structures
Abstract
The long-awaited nonvolatile random-access memory technology NVRAM is finally publicly available on the market and requires significant changes to the architecture of in-memory database systems. Since such hybrid DRAM–NVRAM database systems may be able to keep the primary data solely persistent in the NVRAM, efficient replication mechanisms need to be considered to prevent base data losses and to guarantee high availability in case of various persistent memory failures. In this article, we argue for a software-based replication approach and present compute node-local mechanisms to provide the building blocks—generally available for most platforms—for an efficient NVRAM replication with a low latency and minimal throughput penalty. Within our evaluation, based on both real NVRAM hardware and DRAM-backed emulation, we measured up to 10$$\times $$ less overhead for our optimized replication mechanisms compared to the basic replication mechanism of the Intel persistent memory development kit PMDK. Finally, we present a lightweight switching approach for enabling the adaptive online selection of the best replication mechanism for a given situation.
Year
DOI
Venue
2020
10.1007/s00778-019-00549-w
The VLDB Journal
Keywords
Field
DocType
NVRAM, Replication, In-memory, Database system, Data structures
Data structure,Computer science,Non-volatile random-access memory,Emulation,Software,Throughput,Latency (engineering),High availability,Database,Embedded system
Journal
Volume
Issue
ISSN
29
2
1066-8888
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Mikhail Zarubin101.35
Thomas Kissinger28713.03
Dirk Habich331762.59
Thomas Willhalm460443.67
W. Lehner5314.84