[CASSANDRA-15286] Refactor CompactionController to allow custom implementations

• Type: New Feature
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 4.0-alpha2, 4.0
• Component/s: Local/Compaction
• Change Category: Operability
• Complexity: Normal
• Platform: All

Source Control Link

https://github.com/apache/cassandra/commit/aaa4a602ef1f658bd3898ceeedc3dc1f0fdc4fcd

Test and Documentation Plan

circleci

• Assignee: James Berragan
• Reporter: James Berragan

Authors

James Berragan

Reviewers

Marcus Eriksson

• Created: 19/Aug/19 21:15
• Updated: 15/May/20 08:53
• Resolved: 03/Oct/19 14:06

Description

The CompactionController is tied closely with the SSTableReader and reference tracking.  For the purpose of reading and compacting SSTables through tooling, it would be helpful to have a ‘purging’ compaction controller that purges all tombstones and allows a user to open a CompactionIterator without needing to open a bunch of SSTableReaders.

Issue Links

• links to: GitHub Pull Request #346