[HBASE-19095] Add CP hooks in RegionObserver for in memory compaction

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0-beta-1, 2.0.0
• Component/s: Coprocessors
• Hadoop Flags: Reviewed

Release Note

Add 4 methods in RegionObserver:
preMemStoreCompaction
preMemStoreCompactionCompactScannerOpen
preMemStoreCompactionCompact
postMemStoreCompaction
preMemStoreCompaction and postMemStoreCompaction will always be called for all in memory compactions. Under eager mode, preMemStoreCompactionCompactScannerOpen will be called before opening store scanner to allow you changing the max versions and TTL, and preMemStoreCompactionCompact will be called after the creation to let you do wrapping.

• Assignee: Duo Zhang
• Reporter: Duo Zhang
• Created: 26/Oct/17 14:27
• Updated: 17/Jun/22 05:24
• Resolved: 05/Nov/17 12:40

Description

This is a hole in our CP hooks.

Issue Links

• links to: Review Board