David Mao created KAFKA-13134: --------------------------------- Summary: Heartbeat Request high lock contention Key: KAFKA-13134 URL: https://issues.apache.org/jira/browse/KAFKA-13134 Project: Kafka Issue Type: Improvement Components: core Reporter: David Mao Assignee: David Mao
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. -- This message was sent by Atlassian Jira (v8.3.4#803005)