[HBASE-27852] Interrupt BucketCachePersister thread when BucketCache is shutdown

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0, 3.0.0-alpha-3
• Fix Version/s: 2.6.0, 3.0.0-alpha-4
• Component/s: BucketCache
• Assignee: Shanmukha Haripriya Kota
• Reporter: Shanmukha Haripriya Kota
• Created: 09/May/23 19:51
• Updated: 02/Aug/23 09:39
• Resolved: 12/May/23 11:12

Description

Recent changes with BucketCachePersister caused this unit test  TestVerifyBucketCacheFile.testRetrieveFromFile() to become flaky.

The BucketCachePersister thread keeps running even after BucketCache.shutdown() is run and we do not clear the contents of the backingMap during the shutdown if cache persistence is enabled causing this test to fail. BucketCachePersister should be interrupted in BucketCache.shutdown().

Issue Links

• links to: GitHub Pull Request #5230