[HBASE-24435] Bring back hedged reads metrics to branch-1

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.4.13
• Fix Version/s: 1.7.0
• Component/s: metrics
• Hadoop Flags: Reviewed
• Assignee: Javier Akira Luca de Tena
• Reporter: Javier Akira Luca de Tena
• Created: 26/May/20 09:38
• Updated: 17/Jun/22 17:39
• Resolved: 28/May/20 02:15

Description

Seems at some point, the hedged metrics were added to MetricsRegionServerWrapperImpl (they were added without mentioning Jira ticket, but may be it was https://issues.apache.org/jira/browse/HBASE-12220 ?)

 

However, because of compilation issue, it was reverted: https://issues.apache.org/jira/browse/HBASE-12246

 

And never re-applied for branch-1: https://issues.apache.org/jira/browse/HBASE-12246?focusedCommentId=16425102&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16425102

Issue Links

• fixes: HBASE-15550 Backport HBASE-12220 hedgedRead metrics to 1.2+
• relates to: HBASE-12220 Add hedgedReads and hedgedReadWins metrics
• links to: GitHub Pull Request #1781