[HBASE-15232] Exceptions returned over multi RPC don't automatically trigger region location reloads

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.3.0, 1.2.1, 2.0.0
• Component/s: Client
• Assignee: Josh Elser
• Reporter: Josh Elser
• Created: 08/Feb/16 18:00
• Updated: 23/Feb/16 22:27
• Resolved: 23/Feb/16 06:05

Description

Follow-on for HBASE-15221:

A work-around was added in HTableMultiplexer to work around an issue that AsyncProcess wasn't clearing the region location cache on Exception. This was stemming from the issue that the tableName is null because HTableMultiplexer is using the multi RPC. This causes an error that looks like:

[WARN] Coding error, see method javadoc. row=[B@1673eff, tableName=null

HBASE-15221 should fix HTableMultiplexer, but it would be good to push the fix down into AsyncProcess instead of using higher-level workarounds.