[HBASE-15197] Expose filtered read requests metric to metrics framework and Web UI

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Hadoop Flags: Reviewed
• Assignee: Eungsop Yoo
• Reporter: Eungsop Yoo
• Created: 01/Feb/16 06:05
• Updated: 05/Feb/16 08:38
• Resolved: 05/Feb/16 02:58

Description

Filtered read requests metric for scan is added in HBASE-5980. But it can be retrieved from Scan object only. I think that it would be more informative when it is exposed to metrics framework. So I suggest to add filtered read requests metric and to expose it metrics framework and Web UI.

ps. I think I found a bug; read requests count increased when Get operation returns no record by filtering out. Should it be fixed?