[CASSANDRA-12626] LWT contention appears to be under reported

• Type: Bug
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 3.10
• Component/s: Legacy/Observability
• Severity: Low
• Assignee: Christopher Batey
• Reporter: Christopher Batey

Authors

Christopher Batey

Reviewers

Edward Capriolo

• Created: 10/Sep/16 15:22
• Updated: 16/Apr/19 09:30
• Resolved: 19/Oct/16 00:35

Description

I was surprised how little contention was being reported and looking at the code we miss out reporting contention when there is a timeout at the prepare phase.

If this StorageProxy.beginAndRepairPaxos throws then the contentions count isn't added to the histogram.