[KAFKA-17152] Make sure zk session tracker gets down when closing embedded zk

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.9.0
• Assignee: TengYao Chi
• Reporter: Chia-Ping Tsai
• Created: 16/Jul/24 22:10
• Updated: 21/Jul/24 06:53
• Resolved: 21/Jul/24 06:53

Description

zk `SessionTrackerImpl`[0] exits the loop on background, and hence it can keep alive for a while after zk shutdown. We should have a small waiting for it when closing `EmbeddedZookeeper` [1]

[0] https://github.com/apache/zookeeper/blob/master/zookeeper-server/src/main/java/org/apache/zookeeper/server/SessionTrackerImpl.java#L158
[1] https://github.com/apache/kafka/blob/trunk/core/src/test/scala/unit/kafka/zk/EmbeddedZookeeper.scala#L53

Issue Links

• links to: GitHub Pull Request #16609