LogDB is a Go library for efficient log-structured databases. A log-structured database is a very simple data store where writes are only ever appended to the database, there are no random-access writes at all. To prevent the database from growing indefinitely, a contiguous chunk of entri...
The database system has one or more data tables each having a plurality of columns. A join index is created for one or more join key columns, with optionally one or more secondary columns, of one of the data tables. The join index is partitioned across at least one computing node, and...
LogBase: A Scalable Log-structured Database System in the Cloud Hoang Tam Vo,Sheng Wang,Divyakant Agrawal,Gang Chen,Beng Chin Ooi Full-Text Cite this paper Add to My Lib Abstract: Numerous applications such as financial transactions (e.g., stock trading) are write-heavy in nature. The...
分布式系统里Log是一个非常重要的技术/组件,如MySQL的redo,RocksDB的WAL、Raft的WAL等,Log is the database基本上已经成为了共识。所以作者基于此思想提出了Virtual consesus的概念,因此共识的细节,提出Virutal Log的抽象,Virtual Log提供append/checkTail/readNext接口,使用方只用假设该log里的每一个Entry都已经复制并...
VaseDB is a NoSQL that supports multiple data types and transactions. 简体中文|English 特性 支持JSON Patch 支持多事务处理 支持磁盘存储和垃圾回收 支持自定义索引和自定义 WASM 函数 支持Direct/IO 进行数据同步 支持JavaScript 存储和运算,采用 goja 执行引擎,通过此种方式可以实现 Faas 功能...
All simple rules, but as always, implementation details matter, which is why LevelDB is such a nice addition to the open-source database engine stack. Chances are,you will soon find LevelDB embedded in your browser, on your phone, and in manyotherplaces. Check out theLevelDB source, scan...
The log based structured data synchronization method includes the steps of a), establishing a middle table for storing major keys and doubt fields of a doubt table; b), modifying database synchronization settings and adding the doubt table to a synchronization strategy of the middle table; c),...
Zhu YC, Zhang Z, Cai P, Qian WN, Zhou AY. An efficient bulk loading approach of secondary index in distributed log-structured data stores. In: Proc. of the Database Systems for Advanced Applications. 2017. 87102. [doi: 10.1007/978-3-319-55753-3_6]...
structurestofindtherequiredrecord.Inadistributeddatabasesystem;differentpartsoftheLSM-treearestoredindistributedfashion.Tothisend;aserverinthequerylayerhastoissuesmultiplenetworkcommunicationstopulldataitemsfromtheunderlyingstoragelayer.Comingtoitsrescue;thisworkproposesaprecisedataaccessstrategywhichincludes:anefficient...
It simplifies the implementation of transactional database systems by eliminating the log-database duality and maintaining all persistent data in a single, log-structured data structure. This approach not only provides more efficient recovery with less overhead, but also decouples the management of ...