[ACCUMULO-3556] Improve obtuse "Scanner closed" error message in TabletServerBatchScanner

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.5.0, 1.5.1, 1.5.2, 1.6.0, 1.6.1
• Fix Version/s: 1.5.3, 1.6.2, 1.7.0
• Component/s: client
• Assignee: Josh Elser
• Reporter: Josh Elser
• Created: 02/Feb/15 23:01
• Updated: 02/Feb/15 23:15
• Resolved: 02/Feb/15 23:15

Description

Users complained that they started seeing "Scanner closed" messages after upgrading to 1.6. While, this was unexpected for them, it was indicative that they have bugs in their client code.

We can make a better error message to inform the user that the problem is theirs' and not ours.