[KAFKA-13134] Heartbeat Request high lock contention

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.1.0
• Component/s: core
• Assignee: David Mao
• Reporter: David Mao
• Reviewer: David Jacot
• Created: 25/Jul/21 14:10
• Updated: 24/Aug/21 10:07
• Resolved: 24/Aug/21 10:07

Description

On a cluster with high heartbeat rate, a lock profile showed high contention for the GroupMetadata lock.

We can significantly reduce this by invoking the response callback outside of the group metadata lock.

Issue Links

• links to: GitHub Pull Request #11127