[HBASE-5199] Delete out of TTL store files before compaction selection

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.94.0
• Hadoop Flags: Reviewed
• Release Note: set hbase.store.delete.expired.storefile as true to enable the expired store file deletion
• Assignee: Liyin Tang
• Reporter: Liyin Tang
• Created: 13/Jan/12 23:42
• Updated: 12/Oct/12 05:35
• Resolved: 11/Feb/12 17:11

Description

Currently, HBase deletes the out of TTL store files after compaction. We can change the sequence to delete the out of TTL store files before selecting store files for compactions.
In this way, HBase can keep deleting the old invalid store files without compaction, and also prevent from unnecessary compactions since the out of TTL store files will be deleted before the compaction selection.

Issue Links

• breaks: HBASE-5568 Multi concurrent flushcache() for one region could cause data loss
• is blocked by: HBASE-5274 Filter out the expired store file scanner during the compaction
• relates to: HBASE-4717 More efficient age-off of old data during major compaction