March 2018
Beginner to intermediate
308 pages
8h 23m
English
Content preview from Seven NoSQL Databases in a Week
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Storage engine
The earlier InfluxDB release supports different storage engines, LevelDB, RocksDB, HyperLevelDB, and LMDB. Most of them are based on log-structured merge-tree (LSM Tree). Since the 0.9.5 InfluxDB release, it has its own storage engine called the Time Structured Merge Tree (TSM Tree).
Log-Structured Merge-Tree (LSM Tree) creates indexing files, which provide efficient indexing for high transactional data such as log data. One of the implementations of LSM Tree is called Sorted String Table (SSTable). When data is saved in SSTable, it will be stored as a key-value pair. The index files contain batch data changes for a certain duration. LSM Tree utilizes batch information from index files to merge-sort for each fragment of data ...
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