[HBASE-26295] BucketCache could not free BucketEntry which restored from persistence file

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha-1, 2.4.6
• Fix Version/s: 2.5.0, 3.0.0-alpha-2, 2.3.7, 2.4.7
• Component/s: BucketCache
• Hadoop Flags: Reviewed
• Assignee: chenglei
• Reporter: chenglei
• Created: 24/Sep/21 10:57
• Updated: 30/Sep/21 19:57
• Resolved: 29/Sep/21 13:55

Description

HBASE-21957 reserved a BucketEntry ctor which has no RefCnt#recycler, and when BucketCache is restored from a persistence file, it use this no RefCnt#recycler, BucketEntry ctor. But from HBASE-21957, BucketEntry is freed through RefCnt#recycler , so this no RefCnt#recycler BucketEntry could not be freed even if corresponding HFileBlock is evicted from BucketCache.

Issue Links

• links to: GitHub Pull Request #3699