Type: New Feature
Affects Version/s: None
Fix Version/s: None
Sub-region provides a light weight management below region level.
Matt Corgan has a nice summary of the relationship between region size and number of regions on region server:
HBASE-7667 proposed stripe compaction. However, to fully achieve fine-grained management, more components should participate:
- memstore flush should ideally have knowledge about what makes stripe compaction work efficiently
- we need to figure out where to store sub-region boundary information so that components have easy access. Boundary information should sustain after region moves from one server to another.
HBASE-7667 focuses on compaction aspect, this JIRA discusses sub-region management in other components so that we better understand the benefits and complexities.