On Reading Fresher Snapshots in Parallel Snapshot Isolation

Masoomeh Javidi Kishi, R. Palmieri
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引用次数: 1

Abstract

In this paper we briefly present FPSI, a distributed transactional in-memory key-value store whose primary goal is to enable transactions to read more up-to-date (fresher) versions of shared objects than existing implementations of the well-known Parallel Snapshot Isolation (PSI) correctness level, in the absence of a synchronized clock service among nodes. FPSI builds upon Walter, an implementation of PSI well suited for social applications. The novel concurrency control at the core of FPSI allows its abort-free read-only transactions to access the latest version of objects upon their first contact to a node.
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关于在并行快照隔离中读取较新的快照
在本文中,我们简要介绍了FPSI,这是一种分布式事务性内存键值存储,其主要目标是在节点之间没有同步时钟服务的情况下,使事务能够读取共享对象的最新(更新)版本,而不是现有的著名的并行快照隔离(PSI)正确性级别实现。FPSI建立在Walter的基础上,这是一个非常适合社交应用的PSI实现。FPSI核心的新型并发控制允许其无中止只读事务在第一次接触节点时访问对象的最新版本。
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