[HBASE-25937] Clarify UnknownRegionException

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.5.0, 2.3.6, 2.4.5
• Component/s: Client
• Hadoop Flags: Reviewed
• Assignee: David Mollitor
• Reporter: David Mollitor
• Created: 28/May/21 14:23
• Updated: 23/Jun/21 18:19
• Resolved: 22/Jun/21 14:55

Description

UnknownRegionException seems to accept a "region name" but it's actually a normal Exception message (and is used that way).  Fix this to be "message" and add a "cause" capability as well.

Issue Links

• links to: GitHub Pull Request #3330