{"title":"On Reading Fresher Snapshots in Parallel Snapshot Isolation","authors":"Masoomeh Javidi Kishi, R. Palmieri","doi":"10.1109/ICDCS47774.2020.00193","DOIUrl":null,"url":null,"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.","PeriodicalId":158630,"journal":{"name":"2020 IEEE 40th International Conference on Distributed Computing Systems (ICDCS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE 40th International Conference on Distributed Computing Systems (ICDCS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICDCS47774.2020.00193","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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.