[HBASE-25082] Per table WAL metrics: appendCount and appendSize

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha-1, 2.3.3, 1.7.0, 2.4.0
• Fix Version/s: 3.0.0-alpha-1, 2.3.3, 1.7.0, 2.4.0
• Component/s: metrics
• Labels: observability
• Assignee: Bharath Vissapragada
• Reporter: Bharath Vissapragada
• Created: 22/Sep/20 18:49
• Updated: 09/Oct/20 17:57
• Resolved: 24/Sep/20 04:41

Description

We were trying to drill down into WAL events at a table scope and figured that appendCount and appendSize are not exposed at a table scope. This would be a helpful metric.

I ran the WAL benchmark tool with 10 threads and didn't see any measurable performance difference with the attached patch.

Issue Links

• links to: GitHub Pull Request #2440