Lockless Transaction Isolation in Hyperledger Fabric
| Autor: | Hagar Meir, Artem Barger, Yacov Manevich, Yoav Tock |
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| Rok vydání: | 2019 |
| Předmět: |
FOS: Computer and information sciences
Record locking Computer science Transaction processing computer.software_genre Concurrency control Computer Science - Distributed Parallel and Cluster Computing Operating system Distributed Parallel and Cluster Computing (cs.DC) Isolation (database systems) Snapshot isolation computer Database transaction Software versioning Distributed operating system |
| Zdroj: | Blockchain |
| DOI: | 10.1109/blockchain.2019.00017 |
| Popis: | 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. Comment: Published in the 2019 IEEE International Conference on Blockchain (Blockchain-2019) |
| Databáze: | OpenAIRE |
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