[HBASE-19521] HBase mob compaction need to check hfile version

• Type: Improvement
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha-1, 2.0.0
• Fix Version/s: 2.0.0-beta-1, 2.0.0
• Component/s: Compaction, mob
• Hadoop Flags: Reviewed
• Assignee: Qilin Cao
• Reporter: Qilin Cao
• Created: 15/Dec/17 07:42
• Updated: 21/Mar/18 22:20
• Resolved: 18/Dec/17 16:34

Description

When HBase master configuration is not set hfile.format.version to 3, and user already run compact mob, this operation will cause compactor write V2 ref hfile, the result is that user can not scan the correct cell value since the mob cell ref tags are not written. So it is necessary to check the hfile version before to run mob compaction.