[HBASE-26013] Get operations readRows metrics becomes zero after HBASE-25677

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.5.0, 2.3.6, 1.7.1, 2.4.5
• Component/s: metrics
• Hadoop Flags: Reviewed
• Assignee: Yutong Xiao
• Reporter: Yutong Xiao
• Created: 18/Jun/21 08:37
• Updated: 13/Jul/21 13:28
• Resolved: 24/Jun/21 08:02

Description

After HBASE-25677, Server+table counters on each scan are extracted from #nextRaw to rsServices scan. In this case, the get operation will not count the read rows. So that the readRows metrics becomes zero. Should add counter in metricsUpdateForGet.

Issue Links

• breaks: HBASE-26086 TestHRegionReplayEvents do not pass in branch-2 and throws NullPointerException
• is broken by: HBASE-25677 Server+table counters on each scan #nextRaw invocation becomes a bottleneck when heavy load
• links to: GitHub Pull Request #3404
• links to: GitHub Pull Request #3410
• links to: GitHub Pull Request #3411