[KUDU-1789] ScannerKeepAlive leaks RPCs when scanner is already expired

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.1.0
• Fix Version/s: 1.2.0
• Component/s: tserver
• Target Version/s: 1.2.0
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 06/Dec/16 10:05
• Updated: 07/Dec/16 04:01
• Resolved: 07/Dec/16 04:01

Description

The ScannerKeepAlive RPC, if it fails to find the scanner, currently forgets to respond to the RPC. Thus the client will always time out, plus we end up leaking a bit of memory.