Tracking Issue for async index build #6756
Description
What problem does the new feature solve?
Previously, index construction only supported synchronous operations. This update introduces support for asynchronous index building.
What does the feature do?
Introduces a framework for building SST file indexes asynchronously in the background to improve the performance and stability of foreground operations like flushing and compaction.
Tasks
- Implement the basic framework for asynchronous index rebuilding.
feat: introduce IndexBuildTask for async index build #6927 - Implement construction and testing for four types of indexes.
feat: implement three build types for async index build #7029
feat: implement manual type for async index build #7104 - Performance optimization
perf: optimization for async index build #7034