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LOG-STRUCTURED MERGE TREE BASED DATA STORAGE ARCHITECTURE
LOG-STRUCTURED MERGE TREE BASED DATA STORAGE ARCHITECTURE
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机译:基于对数结构的融合树的数据存储体系结构
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摘要
A system, method and program product for implementing an LSM tree data store in a storage infrastructure. A system is disclosed having: a system for handling read requests and write requests using a key-value pair index to store and retrieve data in an LSM data store; and a compaction manager that reorganizes data in the LSM data store using: a partition system that (a) partitions a first level file into a set of subfiles when a partition threshold is exceeded, and (b) stores the subfiles from the first level file in an intermediate level between the first level and a second level, wherein the subfiles are partitioned by range to correspond with files in the second level; and a merge system that merges a group of files comprising a second level file with one or more corresponding subfiles when a merge threshold is exceeded.
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