[HBASE-27153] Improvements to read-path tracing

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.0, 3.0.0-alpha-2, 2.6.0
• Fix Version/s: 2.5.0, 3.0.0-alpha-4
• Component/s: Operability, regionserver
• Assignee: Nick Dimiduk
• Reporter: Nick Dimiduk
• Created: 23/Jun/22 12:19
• Updated: 03/Aug/22 19:42
• Resolved: 02/Aug/22 12:10

Description

Take another pass through tracing of the read path, make adjustments accordingly. One of the major concerns raised previously is that we create a span for every block access. Start by simplifying this to trace events and see what else comes up.

Issue Links

• is related to: HBASE-26419 Tracing Spans of RPCs should follow otel semantic conventions
• is related to: HBASE-27155 Improvements to low level scanner tracing
• links to: GitHub Pull Request #4572
• links to: GitHub Pull Request #4573
• links to: GitHub Pull Request #4574