[HBASE-28364] Warn: Cache key had block type null, but was found in L1 cache

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0, 2.4.18, 2.5.9
• Fix Version/s: 2.6.1, 2.5.10
• Labels: pull-request-available
• Assignee: Nikita Pande
• Reporter: Bryan Beaudreault
• Created: 13/Feb/24 22:32
• Updated: 11/Jul/24 06:45
• Resolved: 10/Jul/24 11:50

Description

I'm ITBLL testing branch-2.6 and am seeing lots of these warns. This is new to me. I would expect a warn to be on the rare side or be indicative of a problem, but unclear from the code.

cc wchevreuil 

Issue Links

• is caused by: HBASE-28189 Fix the miss count in one of CombinedBlockCache getBlock implementations
• links to: GitHub Pull Request #6068