[HBASE-1920] Client with cached region location pointing at dead server does not recover

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Invalid
• Affects Version/s: 0.20.1
• Fix Version/s: 0.90.0
• Assignee: Unassigned
• Reporter: Jonathan Gray
• Created: 20/Oct/09 00:05
• Updated: 20/Nov/15 13:01
• Resolved: 24/Aug/10 23:57

Description

Testing in HBASE-1908 uncovered an issue where I had a client that had cached a region location. I killed that regionserver, waited for recovery/reassignment, and then tried to scan the table again from the same client w/o restarting it.

A client normally gets a NotServingRegionException when a region is reassigned, but since this server is dead the client just got Connection Refused type exceptions. These didn't seem to trigger the client to ask META for a new region location.