[HBASE-6428] Pluggable Compaction policies

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Implemented
• Assignee: Unassigned
• Reporter: Lars Hofhansl
• Created: 19/Jul/12 04:27
• Updated: 13/Jun/22 16:54
• Resolved: 14/May/13 00:20

Description

For some usecases is useful to allow more control over how KVs get compacted.

For example one could envision storing old versions of a KV separate HFiles, which then rarely have to be touched/cached by queries querying for new data.
In addition these date ranged HFile can be easily used for backups while maintaining historical data.

This would be a major change, allowing compactions to provide multiple targets (not just a filter).

Issue Links

• depends upon: HBASE-6427 Pluggable compaction and scan policies via coprocessors
• is related to: HBASE-5334 Pluggable Compaction Algorithms
• relates to: HBASE-3745 Add the ability to restrict major-compactible files by timestamp
• relates to: HBASE-6371 [89-fb] Tier based compaction