[HBASE-24916] Region hole contains wrong regions pair when hole is created by first region deletion

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.3
• Fix Version/s: 3.0.0-alpha-1, 2.4.0, 2.3.2
• Component/s: hbck2
• Hadoop Flags: Reviewed
• Assignee: Mohammad Arshad
• Reporter: Ajeet Rai
• Created: 20/Aug/20 17:11
• Updated: 20/Sep/20 12:37
• Resolved: 30/Aug/20 17:07

Description

HBCK2 Holes: Wrong region details in HBCK report ,if a region is missing in meta and start key is empty

for hole, it reports two region where hole is present.

Scenario where first region is missing for eg: in below scenario r1 is missing in meta

start key    end key   region

empty     10        r1

10           20        r2

20           30        r2

30          empty  r3

 

In our test hbck report contains two region where first region belongs to different table and second region is r2.

 

Issue Links

• links to: GitHub Pull Request #2304