Title
Lockless Transaction Isolation in Hyperledger Fabric
Abstract
Hyperledger Fabric is a distributed operating system for permissioned blockchains hosted by the Linux Foundation. It is the first truly extensible blockchain system for running distributed applications at enterprise grade scale. To achieve this, Hyperledger Fabric introduces a novel execute-order-validate blockchain architecture, allowing parallelization of transaction execution and validation. However, this raises the need for transaction isolation. Today transaction isolation is attained by locking the entire state database during simulation of transactions and database updates. This lock is one of the major performance bottlenecks as observed by previous work. This work presents a new lock-free approach for providing transaction isolation. It harnesses the already existing versioning of key-value pairs in the database, used primarily for a read-write conflict detection during the validation phase, to create a version-based snapshot isolation. We further implement and evaluate our new approach. We show that our solution outperforms the current implementation by 8.1x and that it is comparable to the optimal solution where no isolation mechanism is applied.
Year
DOI
Venue
2019
10.1109/Blockchain.2019.00017
2019 IEEE International Conference on Blockchain (Blockchain)
Keywords
Field
DocType
blockchain,concurrency-control
Distributed operating system,Snapshot isolation,Architecture,Isolation (database systems),Concurrency control,Lock (computer science),Computer science,Database transaction,Operating system,Software versioning
Conference
ISBN
Citations 
PageRank 
978-1-7281-4694-2
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Hagar Meir132.49
Artem Barger219511.35
Yacov Manevich3133.81
Yoav Tock429215.20