Untangling Blockchain: A Data Processing View of Blockchain Systems
Reads0
Chats0
TLDR
This paper conducts a comprehensive evaluation of three major blockchain systems based on BLOCKBENCH, namely Ethereum, Parity, and Hyperledger Fabric, and discusses several research directions for bringing blockchain performance closer to the realm of databases.Abstract:
Blockchain technologies are gaining massive momentum in the last few years. Blockchains are distributed ledgers that enable parties who do not fully trust each other to maintain a set of global states. The parties agree on the existence, values, and histories of the states. As the technology landscape is expanding rapidly, it is both important and challenging to have a firm grasp of what the core technologies have to offer, especially with respect to their data processing capabilities. In this paper, we first survey the state of the art, focusing on private blockchains (in which parties are authenticated). We analyze both in-production and research systems in four dimensions: distributed ledger, cryptography, consensus protocol, and smart contract. We then present BLOCKBENCH, a benchmarking framework for understanding performance of private blockchains against data processing workloads. We conduct a comprehensive evaluation of three major blockchain systems based on BLOCKBENCH, namely Ethereum, Parity, and Hyperledger Fabric. The results demonstrate several trade-offs in the design space, as well as big performance gaps between blockchain and database systems. Drawing from design principles of database systems, we discuss several research directions for bringing blockchain performance closer to the realm of databases.read more
Citations
More filters
Proceedings ArticleDOI
State of Public and Private Blockchains: Myths and Reality
TL;DR: The technical aspects of only private blockchain systems will be the focus of the SIGMOD 2019 keynote and will bust many myths associated with public blockchains.
Journal ArticleDOI
Toward a Machine Learning and Software Defined Network Approaches to Manage Miners’ Reputation in Blockchain
Abdellah Kaci,Abderrezak Rachedi +1 more
TL;DR: To detect malicious miners that claim bigger computing capacity, the present work provided a machine learning module to estimate the real miners’ capacities and the efficiency of the proposed trust model is studied, and the obtained simulation results are presented and discussed.
Journal ArticleDOI
SHealth: A Blockchain-Based Health System With Smart Contracts Capabilities
TL;DR: Smart-Health (SHealth), a blockchain-based health management system, is presented, a private multi-layered blockchain integrated with a multi-tiered addressing scheme that defines the privileges and permissions of entities in the system.
Journal ArticleDOI
The Innovation Research of Contract Farming Financing Mode under the Block Chain Technology
TL;DR: Wang et al. as discussed by the authors built a block chain supported agricultural financing solution for orders based on the analysis of the development status and existing problems of agricultural financing for orders, and the feasibility of innovative financing mode is judged, and corresponding policy Suggestions are put forward to optimize the financing mode of agricultural value chain for the risks existing in the current financing of the value chain.
Posted Content
Blockchain Meets COVID-19: A Framework for Contact Information Sharing and Risk Notification System.
TL;DR: A novel Blockchain-based platform that can share consistent and non-tampered contact tracing information from multiple dimensions, such as location- based for indirect contact and Bluetooth-based for direct contact, and a mechanism to protect user identity privacy from multiple aspects is proposed.
References
More filters
Book ChapterDOI
Short Signatures from the Weil Pairing
Dan Boneh,Ben Lynn,Hovav Shacham +2 more
TL;DR: A short signature scheme based on the Computational Diffie-Hellman assumption on certain elliptic and hyperelliptic curves is introduced, designed for systems where signatures are typed in by a human or signatures are sent over a low-bandwidth channel.
Proceedings ArticleDOI
Practical Byzantine fault tolerance
Miguel Castro,Barbara Liskov +1 more
TL;DR: A new replication algorithm that is able to tolerate Byzantine faults that works in asynchronous environments like the Internet and incorporates several important optimizations that improve the response time of previous algorithms by more than an order of magnitude.
Proceedings ArticleDOI
Benchmarking cloud serving systems with YCSB
TL;DR: This work presents the "Yahoo! Cloud Serving Benchmark" (YCSB) framework, with the goal of facilitating performance comparisons of the new generation of cloud data serving systems, and defines a core set of benchmarks and reports results for four widely used systems.
Proceedings Article
In search of an understandable consensus algorithm
Diego Ongaro,John Ousterhout +1 more
TL;DR: Raft is a consensus algorithm for managing a replicated log that separates the key elements of consensus, such as leader election, log replication, and safety, and it enforces a stronger degree of coherency to reduce the number of states that must be considered.