[HBASE-28539] Merge of incremental backups fails if backups are on a separate FileSystem

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0, 4.0.0-alpha-1
• Fix Version/s: 4.0.0-alpha-1, 2.7.0, 3.0.0-beta-2, 2.6.1
• Component/s: backup&restore
• Labels: pull-request-available
• Flags: Patch
• Assignee: Benny Colyn
• Reporter: Benny Colyn
• Created: 22/Apr/24 07:30
• Updated: 08/Jun/24 06:41
• Resolved: 07/Jun/24 08:05

Description

When the backups are stored on a location that is not the DistributedFilesystem underpinning HBase itself merging of incremental backups fails. Detected with backups stored on S3A, but can be reproduced with any other (like LocalFilesystem).

Attached is a patch with a proposed fix and a unit test that reproduces the issue.

Issue Links

• links to: GitHub Pull Request #5867
• links to: GitHub Pull Request #5968
• links to: GitHub Pull Request #5969
• links to: GitHub Pull Request #5970