[HBASE-21815] Make isTrackingMetrics and getMetrics of ScannerContext public

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.4.9
• Fix Version/s: 3.0.0-alpha-1, 2.2.0, 1.4.10, 2.3.0, 2.1.5, 1.3.5
• Hadoop Flags: Reviewed
• Assignee: Chen Feng
• Reporter: Chen Feng
• Created: 31/Jan/19 13:22
• Updated: 07/Oct/19 18:38
• Resolved: 29/Apr/19 20:23

Description

HBASE-5980 provides the ability to return the number of rows scanned. Leveraging such ability in observers (e.g. PHOENIX-5117) requires some members of ScannerContext being public.