October 2018
Beginner to intermediate
348 pages
10h
English
As discussed in prior chapters, compaction is the process by which similarly sized underlying SSTables are joined together. This process reclaims space used by obsolete (overwritten) data, including tombstones. Although compaction can constrain system resources, it is generally something you want to run. After all, queries that require seeks/reads from multiple SSTable files are much slower than queries that only hit one file.